Alert archive / Missouri / River Flood Warnings in 2026
River Flood Warning 40, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Apr 27, 2026, 3:05 PM CDT for Perry County, Sainte Genevieve County, Missouri; Jackson County, Randolph County, Illinois. It took effect at Apr 28, 2026, 9:15 PM CDT. It was in force for 7 days.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2026, 3:05 PM CDT (20:05 UTC)
- In effect from
- Apr 28, 2026, 9:15 PM CDT
- Expired
- May 5, 2026, 10:49 AM CDT
- In force
- 7 days
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Jackson County, IL, Randolph County, IL, Perry County, MO, Sainte Genevieve County, MO
The radar
The Paducah radar (KPAH), 123 km from the middle of the area, began a volume at 20:09 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Mississippi River at Chester (CHSI2).
- Action stage
- 25 ft
- Minor stage
- 27 ft
- Moderate stage
- 35 ft
- Major stage
- 40 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 07020500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
547
WGUS43 KLSX 272005
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
305 PM CDT Mon Apr 27 2026
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Illinois...Missouri...
Mississippi River at Chester.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor this
developing situation and issue follow up statements as conditions
change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC077-157-MOC157-186-290815-
/O.NEW.KLSX.FL.W.0040.260429T1200Z-000000T0000Z/
/CHSI2.1.ER.260429T1200Z.260503T0600Z.000000T0000Z.NO/
305 PM CDT Mon Apr 27 2026
...FLOOD WARNING IN EFFECT FROM WEDNESDAY MORNING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...From Wednesday morning until further notice.
* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed
between County Road 322 and Levee Road (County Road 354) at Bois
Brule Creek.
* ADDITIONAL DETAILS...
- At 3:00 PM CDT Monday the stage was 25.1 feet.
- Forecast...The river is expected to rise above flood stage
Wednesday morning and continue rising to a crest of 32.0 feet
early Sunday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Chester 27.0 25.1 25.4 27.0 29.1 30.9 31.9
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
Fuchs16 follow-up statements
008
WGUS83 KLSX 280341
FLSLSX
Flood Statement
National Weather Service St Louis MO
1041 PM CDT Mon Apr 27 2026
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Illinois River at Valley City.
Mississippi River at Grafton.
Mississippi River at Saverton.
Mississippi River at Chester.
Meramec River near Arnold.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Canton.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Kaskaskia River at Vandalia.
Missouri River near Chamois.
Missouri River at Hermann.
Mississippi River at Lock & Dam 21.
Illinois River at Hardin.
Mississippi River at Winfield.
Mississippi River at Hannibal.
Mississippi River at Quincy.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor this
developing situation and issue follow up statements as conditions
change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC149-171-291545-
/O.EXT.KLSX.FL.W.0041.260428T0341Z-000000T0000Z/
/VALI2.1.ER.260428T0056Z.260502T0000Z.000000T0000Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River at Valley City.
* WHEN...From this evening until further notice.
* IMPACTS...At 14.0 feet, The road to Norbut Fish and Wildlife area
is flooded.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 14.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 14.3 feet.
- Forecast...The river will fall to 14.2 feet just after midnight
tonight. It will then rise to 14.3 feet early tomorrow afternoon.
It will fall to 14.1 feet Wednesday evening. It will then rise to
14.9 feet Saturday evening. It will fall again but remain above
flood stage.
- Flood stage is 14.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Illinois River
Valley City 14.0 14.3 14.1 14.3 14.8 14.9 14.8
&&
LAT...LON 3977 9067 3977 9053 3969 9056 3962 9052
3952 9051 3952 9059 3964 9062 3965 9066
3967 9065
$$
ILC083-MOC183-291545-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T1500Z/
/GRFI2.1.ER.260420T0010Z.260430T0600Z.260504T0900Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY, MAY 05...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday, May 05.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 21.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 21.0 feet.
- Forecast...The river is expected to rise to a crest of 22.4 feet
early Thursday morning. It will then fall below flood stage
Monday, May 04.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Grafton 20.0 21.0 21.9 22.4 22.1 21.4 20.7
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC001-MOC111-291545-
/O.EXT.KLSX.FL.W.0026.000000T0000Z-260502T2100Z/
/CANM7.1.ER.260418T0926Z.260428T1200Z.260501T1500Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Canton.
* WHEN...Until Saturday afternoon.
* IMPACTS...At 16.6 feet, Front Street leading to the campground and
Corps park campgrounds flood at this height.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Monday the stage was 15.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM CDT Monday was 15.9 feet.
- Forecast...The river is expected to rise to a crest of 16.1 feet
tomorrow morning. It will then fall below flood stage late Friday
morning.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Canton 15.0 15.9 16.0 15.6 15.1 14.4 13.7
&&
LAT...LON 4022 9154 4022 9142 4008 9139 4008 9153
$$
ILC149-MOC173-291545-
/O.EXT.KLSX.FL.W.0024.000000T0000Z-260504T1000Z/
/SVRM7.1.ER.260415T0220Z.260429T0600Z.260503T0400Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SUNDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...Until late Sunday night.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Monday the stage was 18.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 PM CDT Monday was 18.0 feet.
- Forecast...The river is expected to rise to a crest of 18.8 feet
early Wednesday morning. It will then fall below flood stage late
Saturday evening.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Saverton 16.0 18.0 18.8 18.2 17.5 16.6 15.7
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC163-291545-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260505T1600Z/
/CLKM7.1.ER.260409T1800Z.260429T1200Z.260504T1000Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY, MAY 05...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Tuesday, May 05.
* IMPACTS...At 30.0 feet, East bank (Illinois side) begins to flood.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 28.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 28.7 feet.
- Forecast...The river is expected to rise to a crest of 29.6 feet
Wednesday morning. It will then fall below flood stage Monday,
May 04.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Clarksville 25.0 28.7 29.6 29.0 28.0 26.9 25.9
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-291545-
/O.EXT.KLSX.FL.W.0020.000000T0000Z-260505T2100Z/
/LUSM7.1.ER.260409T1626Z.260429T0600Z.260504T1500Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY, MAY 05...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Tuesday, May 05.
* IMPACTS...At 19.6 feet, Maryland Street at 4th Street by the Town
Branch bridge begins flooding near this height.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 18.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 18.4 feet.
- Forecast...The river is expected to rise to a crest of 19.2 feet
early Wednesday morning. It will then fall below flood stage
Monday, May 04.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Louisiana 15.0 18.4 19.2 18.6 17.8 16.8 15.9
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC051-291545-
/O.EXT.KLSX.FL.W.0042.260428T0527Z-260502T1800Z/
/VNDI2.3.ER.260428T0527Z.260429T1800Z.260501T1200Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY AFTERNOON...
* WHAT...Major flooding is forecast.
* WHERE...Kaskaskia River at Vandalia.
* WHEN...Until Saturday afternoon.
* IMPACTS...At 26.0 feet, The Dively and Vandalia Levees begin to be
overtopped.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Monday the stage was 16.6 feet.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 26.0 feet early Wednesday
afternoon. It will then fall below flood stage Friday morning.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of 26.0
feet on 04/21/1970.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Kaskaskia River
Vandalia 18.0 16.6 25.7 24.6 18.0 10.2 7.4
&&
LAT...LON 3903 8910 3903 8906 3889 8908 3881 8916
3883 8922
$$
MOC027-151-291545-
/O.EXT.KLSX.FL.W.0047.260429T0000Z-260503T0508Z/
/CMSM7.1.ER.260429T0000Z.260430T1200Z.260501T1708Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT FROM TUESDAY EVENING TO LATE SATURDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Missouri River near Chamois.
* WHEN...From Tuesday evening to late Saturday night.
* ADDITIONAL DETAILS...
- There is no current observed data.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 19.4 feet Thursday morning. It
will then fall below flood stage early Friday afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Missouri River
Chamois 17.0 MSG 18.0 19.4 17.6 14.5 MSG
&&
LAT...LON 3864 9198 3871 9185 3873 9160 3865 9160
3864 9181 3858 9194
$$
ILC077-157-MOC157-186-291545-
/O.EXT.KLSX.FL.W.0040.260429T0215Z-000000T0000Z/
/CHSI2.1.ER.260429T0215Z.260502T1200Z.000000T0000Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT FROM TUESDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...From Tuesday evening until further notice.
* IMPACTS...At 34.7 feet, The north parking lot at Menard
Correctional Center begins flooding.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 25.1 feet.
- Forecast...The river is expected to rise above flood stage late
tomorrow evening and continue rising to a crest of 34.2 feet
Saturday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Chester 27.0 25.1 28.3 30.9 33.0 34.2 33.4
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
MOC073-139-291545-
/O.EXT.KLSX.FL.W.0048.260429T0234Z-260502T2125Z/
/HRNM7.1.ER.260429T0234Z.260430T1200Z.260501T1525Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT FROM TUESDAY EVENING TO SATURDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Missouri River at Hermann.
* WHEN...From Tuesday evening to Saturday afternoon.
* IMPACTS...At 22.3 feet, Southern portions of Old Rock Road and
Twisters Road south of Rhineland begin flooding near this height.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Monday the stage was 15.8 feet.
- Forecast...The river is expected to rise above flood stage late
tomorrow evening to a crest of 22.9 feet Thursday morning. It
will then fall below flood stage late Friday morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Missouri River
Hermann 21.0 15.8 21.8 22.9 21.4 18.1 14.6
&&
LAT...LON 3873 9160 3875 9136 3866 9119 3859 9119
3867 9144 3865 9160
$$
MOC099-189-291545-
/O.EXT.KLSX.FL.W.0039.260429T1115Z-000000T0000Z/
/ARNM7.1.ER.260429T1115Z.260502T0000Z.000000T0000Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING NOW IN EFFECT FROM WEDNESDAY MORNING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Wednesday morning until further notice.
* IMPACTS...At 30.0 feet, Wells Road below Suson Woods begins
flooding at this height.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Monday the stage was 20.9 feet.
- Forecast...The river is expected to rise above flood stage
Wednesday morning and continue rising to a crest of 29.0 feet
Friday evening.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Meramec River
Arnold 24.0 20.9 24.1 27.1 28.6 28.8 26.5
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
ILC001-MOC127-291545-
/O.CON.KLSX.FL.W.0050.000000T0000Z-260501T0000Z/
/QLDI2.1.ER.260428T0125Z.260428T1200Z.260429T1800Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL THURSDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Lock & Dam 21.
* WHEN...Until Thursday evening.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Monday the stage was 18.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 PM CDT Monday was 18.2 feet.
- Forecast...The river is expected to rise to a crest of 18.5 feet
tomorrow morning. It will then fall below flood stage early
Wednesday afternoon.
- Flood stage is 18.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Lock & Dam 21 18.0 18.2 18.1 17.5 16.8 15.8 15.2
&&
LAT...LON 3991 9153 3991 9140 3983 9135 3983 9148
$$
ILC013-061-083-291545-
/O.CON.KLSX.FL.W.0025.000000T0000Z-000000T0000Z/
/HARI2.1.ER.260418T2200Z.260501T0600Z.000000T0000Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River at Hardin.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 26.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 26.9 feet.
- Forecast...The river is expected to rise to a crest of 27.4 feet
early Friday morning.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Illinois River
Hardin 25.0 26.9 26.9 27.2 27.4 27.4 27.2
&&
LAT...LON 3952 9064 3952 9052 3942 9054 3935 9051
3931 9053 3898 9052 3897 9049 3890 9054
3898 9062 3923 9065
$$
ILC013-MOC113-291545-
/O.CON.KLSX.FL.W.0023.000000T0000Z-260505T1800Z/
/CAGM7.1.ER.260415T1236Z.260430T0000Z.260504T1200Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL TUESDAY, MAY 05...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until Tuesday, May 05.
* IMPACTS...At 29.5 feet, Highway B in eastern St. Charles County
floods near the Dardenne Creek bridge.
* ADDITIONAL DETAILS...
- At 10:30 PM CDT Monday the stage was 28.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 PM CDT Monday was 28.7 feet.
- Forecast...The river is expected to rise to a crest of 29.6 feet
Wednesday evening. It will then fall below flood stage Monday,
May 04.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Winfield 26.0 28.7 29.4 29.6 29.0 28.0 27.0
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC127-291545-
/O.CON.KLSX.FL.W.0022.000000T0000Z-260505T0000Z/
/HNNM7.1.ER.260413T1415Z.260429T0000Z.260503T1800Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Monday evening.
* IMPACTS...At 20.2 feet, Nipper Park begins flooding on the Hannibal
riverfront.
* ADDITIONAL DETAILS...
- At 10:15 PM CDT Monday the stage was 19.6 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:15 PM CDT Monday was 19.6 feet.
- Forecast...The river is expected to rise to a crest of 20.1 feet
tomorrow evening. It will then fall below flood stage early
Sunday afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Hannibal 17.0 19.6 20.1 19.5 18.7 17.9 17.2
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC001-MOC127-291545-
/O.CON.KLSX.FL.W.0051.260428T1800Z-260430T1200Z/
/UINI2.1.ER.260428T1800Z.260428T1800Z.260429T0600Z.NO/
1041 PM CDT Mon Apr 27 2026
...FLOOD WARNING REMAINS IN EFFECT FROM TUESDAY AFTERNOON TO THURSDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Quincy.
* WHEN...From Tuesday afternoon to Thursday morning.
* IMPACTS...At 18.5 feet, BNSF Railroad main line, 10 to 16 miles
above Quincy begins to flood at several locations.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Monday the stage was 18.7 feet.
- Forecast...The river is expected to rise to a crest of 19.0 feet
early tomorrow afternoon. It will then fall below flood stage
early Wednesday morning.
- Flood stage is 19.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Quincy 19.0 18.7 18.9 18.6 17.9 16.9 16.4
&&
LAT...LON 3999 9153 3999 9140 3991 9140 3991 9153
$$
Elmore804
WGUS83 KLSX 281656
FLSLSX
Flood Statement
National Weather Service St Louis MO
1156 AM CDT Tue Apr 28 2026
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Quincy.
Mississippi River at Lock & Dam 21.
Mississippi River at Grafton.
Mississippi River at Canton.
Mississippi River at Saverton.
Mississippi River at Winfield.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River at Chester.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC001-MOC127-300500-
/O.EXT.KLSX.FL.W.0051.260428T1656Z-260430T0900Z/
/UINI2.1.ER.260428T1701Z.260428T1800Z.260429T0300Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS MORNING TO LATE WEDNESDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Quincy.
* WHEN...From this morning to late Wednesday night.
* IMPACTS...At 19.5 feet, Garages beneath raised homes along
Bonansinga Drive will begin flooding near this height.
* ADDITIONAL DETAILS...
- At 11:15 AM CDT Tuesday the stage was 18.9 feet.
- Forecast...The river is expected to rise above flood stage this
afternoon to a crest of 19.1 feet this afternoon. It will then
fall below flood stage late this evening.
- Flood stage is 19.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Quincy 19.0 18.9 18.8 18.2 17.4 16.6 15.9
&&
LAT...LON 3999 9153 3999 9140 3991 9140 3991 9153
$$
ILC001-MOC127-300500-
/O.EXT.KLSX.FL.W.0050.000000T0000Z-260430T2100Z/
/QLDI2.1.ER.260428T0125Z.260428T1100Z.260429T1500Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Lock & Dam 21.
* WHEN...Until Thursday afternoon.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Tuesday the stage was 18.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Tuesday was 18.6 feet.
- Forecast...The river is expected to rise to a crest of 18.5 feet
this afternoon. It will then fall below flood stage late tomorrow
morning.
- Flood stage is 18.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Lock & Dam 21 18.0 18.5 18.1 17.3 16.3 15.5 14.8
&&
LAT...LON 3991 9153 3991 9140 3983 9135 3983 9148
$$
ILC083-MOC183-300500-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T0900Z/
/GRFI2.1.ER.260420T0010Z.260430T1200Z.260504T0300Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until late Monday night.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 21.6 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 21.6 feet.
- Forecast...The river is expected to rise to a crest of 23.0 feet
Thursday morning. It will then fall below flood stage late Sunday
evening.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Grafton 20.0 21.6 22.2 23.0 22.4 21.4 20.5
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC001-MOC111-300500-
/O.EXT.KLSX.FL.W.0026.000000T0000Z-260502T0000Z/
/CANM7.1.ER.260418T0926Z.260428T0300Z.260430T1800Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Canton.
* WHEN...Until Friday evening.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Tuesday the stage was 15.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Tuesday was 15.9 feet.
- Forecast...The river is expected to fall below flood stage early
Thursday afternoon and continue falling to 11.7 feet Tuesday, May
05.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Canton 15.0 15.8 15.6 15.2 14.5 13.9 13.2
&&
LAT...LON 4022 9154 4022 9142 4008 9139 4008 9153
$$
ILC149-MOC173-300500-
/O.EXT.KLSX.FL.W.0024.000000T0000Z-260503T0600Z/
/SVRM7.1.ER.260415T0220Z.260429T0000Z.260502T0000Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SATURDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...Until late Saturday night.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Tuesday the stage was 18.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Tuesday was 18.7 feet.
- Forecast...The river is expected to rise to a crest of 18.9 feet
this evening. It will then fall below flood stage Friday evening.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Saverton 16.0 18.7 18.8 17.8 16.6 15.5 14.7
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC113-300500-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260504T2200Z/
/CAGM7.1.ER.260415T1236Z.260429T1800Z.260503T1600Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until Monday afternoon.
* IMPACTS...At 29.8 feet, Much of County Highways B and C in eastern
St. Charles County are flooded.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 29.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 29.1 feet.
- Forecast...The river is expected to rise to a crest of 29.7 feet
early tomorrow afternoon. It will then fall below flood stage
late Sunday morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Winfield 26.0 29.1 29.6 29.5 28.6 27.3 26.2
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC127-300500-
/O.EXT.KLSX.FL.W.0022.000000T0000Z-260504T0600Z/
/HNNM7.1.ER.260413T1415Z.260429T0000Z.260503T0000Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SUNDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until late Sunday night.
* IMPACTS...At 20.2 feet, Nipper Park begins flooding on the Hannibal
riverfront.
* ADDITIONAL DETAILS...
- At 11:15 AM CDT Tuesday the stage was 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:15 AM CDT Tuesday was 20.0 feet.
- Forecast...The river is expected to rise to a crest of 20.2 feet
this evening. It will then fall below flood stage Saturday
evening.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Hannibal 17.0 20.0 19.9 19.1 18.1 17.3 16.6
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-300500-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260505T0000Z/
/CLKM7.1.ER.260409T1800Z.260429T0600Z.260503T1800Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday evening.
* IMPACTS...At 29.0 feet, Water enters the parking lot entrance at
the Clarksville Riverfront Park.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 29.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 29.0 feet.
- Forecast...The river is expected to rise to a crest of 29.6 feet
just after midnight tonight. It will then fall below flood stage
early Sunday afternoon.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Clarksville 25.0 29.0 29.6 28.7 27.4 26.2 25.2
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-300500-
/O.EXT.KLSX.FL.W.0020.000000T0000Z-260504T2100Z/
/LUSM7.1.ER.260409T1626Z.260429T0600Z.260503T1500Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday afternoon.
* IMPACTS...At 19.6 feet, Maryland Street at 4th Street by the Town
Branch bridge begins flooding near this height.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 18.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 18.8 feet.
- Forecast...The river is expected to rise to a crest of 19.1 feet
just after midnight tonight. It will then fall below flood stage
late Sunday morning.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Louisiana 15.0 18.8 19.0 18.1 17.0 15.9 15.1
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC077-157-MOC157-186-300500-
/O.CON.KLSX.FL.W.0040.260429T0215Z-000000T0000Z/
/CHSI2.1.ER.260429T0215Z.260502T1200Z.000000T0000Z.NO/
1156 AM CDT Tue Apr 28 2026
...FLOOD WARNING REMAINS IN EFFECT FROM THIS EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...From this evening until further notice.
* IMPACTS...At 33.5 feet, Water Street in Chester begins flooding.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 25.9 feet.
- Forecast...The river is expected to rise above flood stage late
this evening and continue rising to a crest of 34.5 feet Saturday
morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Chester 27.0 25.9 28.3 31.2 33.4 34.5 33.9
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
Fuchs773
WGUS83 KLSX 290302
FLSLSX
Flood Statement
National Weather Service St Louis MO
1002 PM CDT Tue Apr 28 2026
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
Mississippi River at Canton.
Mississippi River at Winfield.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
Mississippi River at Alton.
Mississippi River at Saverton.
...The Flood Warning is cancelled for the following rivers in
Illinois...Missouri...
Mississippi River at Quincy.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC001-MOC127-290415-
/O.CAN.KLSX.FL.W.0051.000000T0000Z-260429T0302Z/
/UINI2.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Quincy.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Tuesday the stage was 18.8 feet.
- Forecast...The river is expected to rise to a crest of 18.8 feet
just after midnight tonight.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Quincy 19.0 18.8 18.2 17.5 16.5 15.6 15.0
&&
LAT...LON 3999 9153 3999 9140 3991 9140 3991 9153
$$
ILC119-MOC183-301515-
/O.EXT.KLSX.FL.W.0055.260429T0302Z-260504T2200Z/
/ALNI2.1.ER.260428T2312Z.260430T1800Z.260503T1600Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO MONDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...From this evening to Monday afternoon.
* IMPACTS...At 23.0 feet, Dresser Island Drive floods within a foot
of this level.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 21.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM CDT Tuesday was 21.4 feet.
- Forecast...The river is expected to rise to a crest of 23.4 feet
early Thursday afternoon. It will then fall below flood stage
late Sunday morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Mel Price LD 21.0 21.4 23.3 23.4 22.6 21.2 19.7
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-301515-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T2149Z/
/CHSI2.1.ER.260429T0600Z.260502T1200Z.260505T1549Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY, MAY 06...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday, May 06.
* IMPACTS...At 34.7 feet, The north parking lot at Menard
Correctional Center begins flooding.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 26.6 feet.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 34.4 feet Saturday morning.
It will then fall below flood stage Tuesday, May 05.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Chester 27.0 26.6 31.0 33.2 34.4 33.7 31.5
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-301515-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T1200Z/
/GRFI2.1.ER.260420T0010Z.260430T0600Z.260504T0600Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday morning.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 21.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM CDT Tuesday was 21.9 feet.
- Forecast...The river is expected to rise to a crest of 22.8 feet
early Thursday morning. It will then fall below flood stage early
Monday morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Grafton 20.0 21.9 22.8 22.3 21.5 20.7 19.7
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC001-MOC111-301515-
/O.EXT.KLSX.FL.W.0026.000000T0000Z-260502T0600Z/
/CANM7.1.ER.260418T0926Z.260428T0300Z.260501T0000Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Canton.
* WHEN...Until late Friday night.
* IMPACTS...At 15.6 feet, North Front Street and the first 2-3
campsites in Mississippi Park begin flooding at this height.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Tuesday the stage was 15.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM CDT Tuesday was 15.9 feet.
- Forecast...The river is expected to fall below flood stage
Thursday evening and continue falling to 11.1 feet Tuesday, May
05.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Canton 15.0 15.7 15.2 14.7 13.8 12.8 12.0
&&
LAT...LON 4022 9154 4022 9142 4008 9139 4008 9153
$$
ILC013-MOC113-301515-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T0000Z/
/CAGM7.1.ER.260415T1236Z.260429T1800Z.260503T1800Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until Monday evening.
* IMPACTS...At 29.5 feet, Highway B in eastern St. Charles County
floods near the Dardenne Creek bridge.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 29.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM CDT Tuesday was 29.4 feet.
- Forecast...The river is expected to rise to a crest of 29.7 feet
early tomorrow afternoon. It will then fall below flood stage
early Sunday afternoon.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Winfield 26.0 29.4 29.5 28.7 27.7 26.4 25.0
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC127-301515-
/O.EXT.KLSX.FL.W.0022.000000T0000Z-260503T2200Z/
/HNNM7.1.ER.260413T1415Z.260428T1900Z.260502T1600Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Sunday afternoon.
* IMPACTS...At 19.0 feet, The Corps of Engineers begins flood fight
procedures. At this level, preparations are made to install two
flood gates at Hill Street and Center Street if the forecast
exceeds 20.5 feet.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Tuesday the stage was 19.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:15 PM CDT Tuesday was 20.0 feet.
- Forecast...The river is expected to fall below flood stage late
Saturday morning and continue falling to 15.1 feet Tuesday, May
05.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Hannibal 17.0 19.9 19.1 18.2 17.2 16.3 15.7
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-301515-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260504T2000Z/
/CLKM7.1.ER.260409T1800Z.260429T0600Z.260503T1400Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday afternoon.
* IMPACTS...At 29.0 feet, Water enters the parking lot entrance at
the Clarksville Riverfront Park.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 29.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM CDT Tuesday was 29.1 feet.
- Forecast...The river is expected to rise to a crest of 29.2 feet
just after midnight tonight. It will then fall below flood stage
late Sunday morning.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Clarksville 25.0 29.1 28.4 27.6 26.4 25.1 24.0
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-301515-
/O.EXT.KLSX.FL.W.0020.000000T0000Z-260504T1600Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1000Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday morning.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 18.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM CDT Tuesday was 18.9 feet.
- Forecast...The river is expected to fall below flood stage early
Sunday morning and continue falling to 13.0 feet Tuesday, May 05.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Louisiana 15.0 18.8 18.0 17.2 16.1 14.9 14.0
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC133-MOC099-301515-
/O.EXT.KLSX.FL.W.0056.260430T0000Z-260504T1048Z/
/HRCM7.1.ER.260430T0000Z.260501T1200Z.260503T0448Z.UU/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT FROM WEDNESDAY EVENING TO LATE SUNDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...From Wednesday evening to late Sunday night.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 23.1 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 28.0 feet Friday morning. It will
then fall below flood stage late Saturday evening.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Herculaneum 26.0 23.1 27.1 28.0 27.3 25.3 22.7
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC163-MOC189-510-301515-
/O.EXT.KLSX.FL.W.0058.260430T1048Z-260503T2100Z/
/EADM7.1.ER.260430T1048Z.260501T0600Z.260502T1500Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT FROM LATE WEDNESDAY NIGHT TO SUNDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at St. Louis.
* WHEN...From late Wednesday night to Sunday afternoon.
* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 25.9 feet.
- Forecast...The river is expected to rise above flood stage early
Thursday morning to a crest of 31.0 feet early Friday morning. It
will then fall below flood stage late Saturday morning.
- Flood stage is 30.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
St. Louis 30.0 25.9 30.1 31.0 30.2 28.1 25.4
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
ILC119-MOC183-301515-
/O.EXT.KLSX.FL.W.0057.260430T1800Z-260503T0000Z/
/ALOI2.1.ER.260430T1800Z.260501T0600Z.260501T1800Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT FROM THURSDAY AFTERNOON TO SATURDAY
EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...From Thursday afternoon to Saturday evening.
* IMPACTS...At 20.7 feet, During open river conditions (Mel Price
gates all open), Alta Villa Road off of Highway 94 begins flooding
and is closed.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 19.1 feet.
- Forecast...The river is expected to rise above flood stage early
Thursday afternoon to a crest of 21.2 feet early Friday morning.
It will then fall below flood stage early Friday afternoon.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Alton 21.0 19.1 20.9 21.1 20.4 19.0 17.4
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC149-MOC173-301515-
/O.CON.KLSX.FL.W.0024.000000T0000Z-260503T0600Z/
/SVRM7.1.ER.260415T0220Z.260428T2100Z.260502T0000Z.NO/
1002 PM CDT Tue Apr 28 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE SATURDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...Until late Saturday night.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Tuesday the stage was 18.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM CDT Tuesday was 18.7 feet.
- Forecast...The river is expected to fall below flood stage Friday
evening and continue falling to 12.2 feet Tuesday, May 05.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Saverton 16.0 18.7 17.7 16.7 15.4 14.3 13.3
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
Jaja126
WGUS83 KLSX 291654
FLSLSX
Flood Statement
National Weather Service St Louis MO
1154 AM CDT Wed Apr 29 2026
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Alton.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC119-MOC183-010500-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0130Z/
/ALNI2.1.ER.260428T2312Z.260430T1800Z.260503T1930Z.NO/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until Monday evening.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 22.8 feet.
- Forecast...The river is expected to rise to a crest of 23.9 feet
early tomorrow afternoon. It will then fall below flood stage
early Sunday afternoon.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Mel Price LD 21.0 22.8 23.7 23.8 22.9 21.5 20.0
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-010500-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T2024Z/
/CHSI2.1.ER.260429T0930Z.260502T1200Z.260505T1424Z.NO/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 33.5 feet, Water Street in Chester begins flooding.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 28.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 28.0 feet.
- Forecast...The river is expected to rise to a crest of 34.0 feet
Saturday morning. It will then fall below flood stage late
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Chester 27.0 28.0 30.6 32.9 34.0 33.3 31.1
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC133-MOC099-010500-
/O.EXT.KLSX.FL.W.0056.260430T0200Z-260504T0900Z/
/HRCM7.1.ER.260430T0200Z.260501T0600Z.260503T0300Z.UU/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO LATE SUNDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...From this evening to late Sunday night.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Wednesday the stage was 24.8 feet.
- Forecast...The river is expected to rise above flood stage late
this evening to a crest of 27.8 feet early Friday morning. It
will then fall below flood stage late Saturday evening.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Herculaneum 26.0 24.8 26.9 27.8 27.1 25.1 22.5
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-010500-
/O.EXT.KLSX.FL.W.0057.260430T0600Z-260503T0600Z/
/ALOI2.1.ER.260430T0600Z.260501T0000Z.260502T0000Z.NO/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO LATE SATURDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...From late tonight to late Saturday night.
* IMPACTS...At 21.7 feet, At this level, Highway 94 and the east end
of Harbor Point Road off of Missouri Highway 94 north of West Alton
begin flooding. Also, the access road the Lincoln Shields
recreation area off of U.S. Highway 367 just west of the Clark
bridge begins flooding.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 20.3 feet.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 21.5 feet tomorrow evening.
It will then fall below flood stage Friday evening.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Alton 21.0 20.3 21.3 21.4 20.5 19.0 17.5
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC163-MOC189-510-010500-
/O.EXT.KLSX.FL.W.0058.260430T1500Z-260503T1800Z/
/EADM7.1.ER.260430T1500Z.260501T0600Z.260502T1200Z.NO/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT FROM THURSDAY MORNING TO SUNDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at St. Louis.
* WHEN...From Thursday morning to Sunday afternoon.
* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Wednesday the stage was 27.6 feet.
- Forecast...The river is expected to rise above flood stage late
tomorrow morning to a crest of 30.7 feet early Friday morning. It
will then fall below flood stage Saturday morning.
- Flood stage is 30.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
St. Louis 30.0 27.6 29.8 30.7 30.0 28.0 25.3
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
ILC083-MOC183-010500-
/O.CON.KLSX.FL.W.0034.000000T0000Z-260505T1200Z/
/GRFI2.1.ER.260420T0010Z.260430T0600Z.260504T0600Z.NO/
1154 AM CDT Wed Apr 29 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL TUESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday morning.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 22.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 22.4 feet.
- Forecast...The river is expected to rise to a crest of 22.7 feet
just after midnight tonight. It will then fall below flood stage
early Monday morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Mississippi River
Grafton 20.0 22.4 22.7 22.1 21.3 20.5 19.8
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
19239
WGUS83 KLSX 300238
FLSLSX
Flood Statement
National Weather Service St Louis MO
938 PM CDT Wed Apr 29 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River near Herculaneum.
Mississippi River at Mel Price LD.
Mississippi River at Chester.
Mississippi River at Grafton.
Mississippi River at Alton.
Mississippi River at St. Louis.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC133-MOC099-011445-
/O.EXT.KLSX.FL.W.0056.000000T0000Z-260504T0336Z/
/HRCM7.1.ER.260430T0500Z.260501T0600Z.260502T2136Z.UU/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday evening.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Wednesday the stage was 25.7 feet and rising.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 27.6 feet early Friday
morning. It will then fall below flood stage Saturday afternoon.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Herculaneum 26.0 25.7 27.6 26.8 24.7 22.0 18.8
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-011445-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260504T2100Z/
/ALNI2.1.ER.260428T2312Z.260430T1800Z.260503T1500Z.NO/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until Monday afternoon.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 23.4 feet and rising.
- Recent Activity...The river rose above flood stage on April 28.
- Forecast...The river is expected to rise to a crest of 24.0 feet
early tomorrow afternoon. It will then fall below flood stage
late Sunday morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Mel Price LD 21.0 23.4 23.9 22.8 21.2 19.6 17.9
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-011445-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1648Z/
/CHSI2.1.ER.260429T0930Z.260502T1200Z.260505T1048Z.NO/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday morning.
* IMPACTS...At 33.5 feet, Water Street in Chester begins flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 28.9 feet and rising.
- Recent Activity...The river most recently rose above flood stage
on April 29.
- Forecast...The river is expected to rise to a crest of 33.5 feet
Saturday morning. It will then fall below flood stage early
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Chester 27.0 28.9 32.3 33.5 32.7 30.4 26.8
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-011445-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T0300Z/
/GRFI2.1.ER.260420T0010Z.260430T0600Z.260503T2100Z.NO/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Monday evening.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 22.6 feet and nearing a
crest.
- Recent Activity...The river rose above flood stage on April 19.
- Forecast...The river is expected to rise to a crest of 22.7 feet
just after midnight tonight. It will then fall below flood stage
Sunday afternoon.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Grafton 20.0 22.6 22.1 21.3 20.3 19.3 18.0
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC119-MOC183-011445-
/O.EXT.KLSX.FL.W.0057.260430T0600Z-260503T0300Z/
/ALOI2.1.ER.260430T0600Z.260430T1800Z.260501T2100Z.NO/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO SATURDAY
EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...From late tonight to Saturday evening.
* IMPACTS...At 21.7 feet, At this level, Highway 94 and the east end
of Harbor Point Road off of Missouri Highway 94 north of West Alton
begin flooding. Also, the access road the Lincoln Shields
recreation area off of U.S. Highway 367 just west of the Clark
bridge begins flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 20.8 feet and rising.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 21.4 feet early tomorrow
afternoon. It will then fall below flood stage Friday afternoon.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Alton 21.0 20.8 21.3 20.2 18.6 17.0 15.8
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC163-MOC189-510-011445-
/O.EXT.KLSX.FL.W.0058.260430T1648Z-260503T1000Z/
/EADM7.1.ER.260430T1648Z.260501T0600Z.260502T0400Z.NO/
938 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT FROM THURSDAY MORNING TO LATE SATURDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at St. Louis.
* WHEN...From Thursday morning to late Saturday night.
* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 28.4 feet and rising.
- Forecast...The river is expected to rise above flood stage late
tomorrow morning to a crest of 30.4 feet early Friday morning. It
will then fall below flood stage late Friday evening.
- Flood stage is 30.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
St. Louis 30.0 28.4 30.4 29.6 27.4 24.6 21.3
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
Kimble105
WGUS83 KLSX 301803
FLSLSX
Flood Statement
National Weather Service St Louis MO
103 PM CDT Thu Apr 30 2026
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at St. Louis.
Mississippi River near Herculaneum.
Mississippi River at Chester.
...The Flood Warning is extended for the following rivers in
Missouri...Illinois...
Mississippi River at Alton.
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC163-MOC189-510-020615-
/O.EXT.KLSX.FL.W.0058.000000T0000Z-260503T0000Z/
/EADM7.1.ER.260501T1800Z.260501T1800Z.260501T1800Z.NO/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at St. Louis.
* WHEN...Until Saturday evening.
* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Thursday the stage was 29.3 feet.
- Forecast...The river is expected to rise to a crest of 30.0 feet
early tomorrow afternoon.
- Flood stage is 30.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
St. Louis 30.0 29.3 29.9 29.1 26.8 24.2 21.2
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
ILC119-MOC183-020615-
/O.EXT.KLSX.FL.W.0057.000000T0000Z-260503T1200Z/
/ALOI2.1.ER.260430T0710Z.260501T0600Z.260502T0600Z.NO/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...Until Sunday morning.
* IMPACTS...At 21.7 feet, At this level, Highway 94 and the east end
of Harbor Point Road off of Missouri Highway 94 north of West Alton
begin flooding. Also, the access road the Lincoln Shields
recreation area off of U.S. Highway 367 just west of the Clark
bridge begins flooding.
* ADDITIONAL DETAILS...
- At 12:30 PM CDT Thursday the stage was 21.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 PM CDT Thursday was 21.4 feet.
- Forecast...The river is expected to rise to a crest of 21.6 feet
just after midnight tonight. It will then fall below flood stage
early Saturday morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Alton 21.0 21.4 21.6 20.7 19.1 17.3 15.6
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC133-MOC099-020615-
/O.EXT.KLSX.FL.W.0056.000000T0000Z-260503T2300Z/
/HRCM7.1.ER.260430T0710Z.260501T1800Z.260502T1648Z.UU/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday evening.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Thursday the stage was 26.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:00 PM CDT Thursday was 26.5 feet.
- Forecast...The river is expected to rise to a crest of 27.3 feet
early tomorrow afternoon. It will then fall below flood stage
late Saturday morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Herculaneum 26.0 26.5 27.2 26.4 24.1 21.7 18.7
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-020615-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0500Z/
/ALNI2.1.ER.260428T2312Z.260501T0600Z.260503T2230Z.NO/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until late Monday night.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 12:30 PM CDT Thursday the stage was 24.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 PM CDT Thursday was 24.1 feet.
- Forecast...The river is expected to rise to a crest of 24.3 feet
just after midnight tonight. It will then fall below flood stage
Sunday afternoon.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Mel Price LD 21.0 24.1 24.2 23.4 21.7 20.2 18.4
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-020615-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1300Z/
/CHSI2.1.ER.260429T0930Z.260502T1200Z.260505T0645Z.NO/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday morning.
* IMPACTS...At 32.5 feet, The Road at Fort Gage Farm begins flooding
at Menard Correctional Center.
* ADDITIONAL DETAILS...
- At 12:30 PM CDT Thursday the stage was 30.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 PM CDT Thursday was 30.2 feet.
- Forecast...The river is expected to rise to a crest of 32.4 feet
Saturday morning. It will then fall below flood stage early
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Chester 27.0 30.2 31.5 32.4 31.8 29.6 26.3
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-020615-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T2200Z/
/GRFI2.1.ER.260420T0010Z.260501T0000Z.260504T1600Z.NO/
103 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday afternoon.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 12:30 PM CDT Thursday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 PM CDT Thursday was 22.8 feet.
- Forecast...The river is expected to rise to a crest of 22.9 feet
this evening. It will then fall below flood stage late Monday
morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Mississippi River
Grafton 20.0 22.8 22.8 21.9 21.0 20.2 19.1
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
Peine146
WGUS83 KLSX 010226
FLSLSX
Flood Statement
National Weather Service St Louis MO
926 PM CDT Thu Apr 30 2026
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River near Herculaneum.
Mississippi River at Chester.
Mississippi River at Alton.
Mississippi River at Grafton.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
...The Flood Warning is extended for the following rivers in
Missouri...Illinois...
Mississippi River at Mel Price LD.
Mississippi River at Saverton.
Mississippi River at Winfield.
Mississippi River at Hannibal.
...The Flood Warning is cancelled for the following rivers in
Missouri...Illinois...
Mississippi River at St. Louis.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC163-MOC189-510-010330-
/O.CAN.KLSX.FL.W.0058.000000T0000Z-260501T0226Z/
/EADM7.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at St. Louis.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 29.6 feet.
- River levels will continue to rise to just under flood stage,
peaking near 29.8 feet early Friday morning. The river is then
expected to fall through early next week.
- Forecast...The river is expected to rise to a crest of 29.8 feet
tomorrow morning.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
St. Louis 30.0 29.6 28.9 26.6 24.1 21.0 18.6
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
ILC133-MOC099-021430-
/O.EXT.KLSX.FL.W.0056.000000T0000Z-260503T2100Z/
/HRCM7.1.ER.260430T0710Z.260501T0600Z.260502T1500Z.UU/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday afternoon.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Thursday the stage was 26.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:30 PM CDT Thursday was 26.9 feet.
- Forecast...The river is expected to rise to a crest of 27.1 feet
just after midnight tonight. It will then fall below flood stage
late Saturday morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Herculaneum 26.0 26.9 26.2 24.1 21.7 18.6 16.3
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-021430-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0600Z/
/ALNI2.1.ER.260428T2312Z.260501T0600Z.260504T0000Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until late Monday night.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 24.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 24.3 feet.
- Forecast...The river is expected to rise to a crest of 24.3 feet
just after midnight tonight. It will then fall below flood stage
Sunday evening.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Mel Price LD 21.0 24.3 23.4 21.8 20.3 18.5 17.2
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-021430-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1200Z/
/CHSI2.1.ER.260429T0930Z.260502T0600Z.260505T0600Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday morning.
* IMPACTS...At 32.5 feet, The Road at Fort Gage Farm begins flooding
at Menard Correctional Center.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 30.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 30.6 feet.
- Forecast...The river is expected to rise to a crest of 32.3 feet
early Saturday morning. It will then fall below flood stage early
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Chester 27.0 30.4 32.3 31.8 29.5 26.2 23.8
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC149-MOC173-021430-
/O.EXT.KLSX.FL.W.0024.000000T0000Z-260503T0900Z/
/SVRM7.1.ER.260415T0220Z.260428T2100Z.260502T0300Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SATURDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...Until late Saturday night.
* IMPACTS...At 15.5 feet, An access road to riverside raised homes on
the riverward side of the Sny levee begins to flood near this
level.
* ADDITIONAL DETAILS...
- At 6:00 PM CDT Thursday the stage was 17.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 6:00 PM CDT Thursday was 18.0 feet.
- Forecast...The river is expected to fall below flood stage late
tomorrow evening and continue falling to 11.9 feet Thursday, May
07.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Saverton 16.0 17.2 15.6 14.6 13.6 12.9 12.5
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC113-021430-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T0600Z/
/CAGM7.1.ER.260415T1236Z.260429T1530Z.260504T0000Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until late Monday night.
* IMPACTS...At 29.0 feet, Route 96 at Mozier Landing closes.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 29.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 29.4 feet.
- Forecast...The river is expected to fall below flood stage Sunday
evening and continue falling to 22.5 feet Thursday, May 07.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Winfield 26.0 29.0 27.6 26.5 25.4 24.2 23.3
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC127-021430-
/O.EXT.KLSX.FL.W.0022.000000T0000Z-260504T0300Z/
/HNNM7.1.ER.260413T1415Z.260428T1900Z.260502T2100Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Sunday evening.
* IMPACTS...At 18.0 feet, The northern end of Southside Recreation #2
Park along Bear Creek begins flooding at this height. Gate wells
are shut down to prevent the sewers from backing up. Also at this
level pumps are set to standby.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Thursday the stage was 18.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:15 PM CDT Thursday was 19.3 feet.
- Forecast...The river is expected to fall below flood stage
Saturday afternoon and continue falling to 14.4 feet Thursday,
May 07.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Hannibal 17.0 18.4 17.3 16.4 15.8 15.3 14.9
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC119-MOC183-021430-
/O.CON.KLSX.FL.W.0057.000000T0000Z-260503T1200Z/
/ALOI2.1.ER.260430T0710Z.260501T0600Z.260502T0600Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...Until Sunday morning.
* IMPACTS...At 21.7 feet, At this level, Highway 94 and the east end
of Harbor Point Road off of Missouri Highway 94 north of West Alton
begin flooding. Also, the access road the Lincoln Shields
recreation area off of U.S. Highway 367 just west of the Clark
bridge begins flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 21.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 21.5 feet.
- Forecast...The river is expected to rise to a crest of 21.6 feet
just after midnight tonight. It will then fall below flood stage
early Saturday morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Alton 21.0 21.5 20.7 19.1 17.3 15.6 15.1
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC083-MOC183-021430-
/O.CON.KLSX.FL.W.0034.000000T0000Z-260505T2200Z/
/GRFI2.1.ER.260420T0010Z.260501T0600Z.260504T1600Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL TUESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday afternoon.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 22.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 22.9 feet.
- Forecast...The river is expected to rise to a crest of 22.9 feet
just after midnight tonight. It will then fall below flood stage
late Monday morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Grafton 20.0 22.9 21.9 21.0 20.2 19.1 18.0
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC013-MOC163-021430-
/O.CON.KLSX.FL.W.0021.000000T0000Z-260505T0200Z/
/CLKM7.1.ER.260409T1800Z.260429T0230Z.260503T2000Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday evening.
* IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off
Highway 79 begins flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 28.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 28.8 feet.
- Forecast...The river is expected to fall below flood stage Sunday
afternoon and continue falling to 22.1 feet Thursday, May 07.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Clarksville 25.0 28.1 26.5 25.4 24.2 23.3 22.7
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-021430-
/O.CON.KLSX.FL.W.0020.000000T0000Z-260505T0400Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T2200Z.NO/
926 PM CDT Thu Apr 30 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* IMPACTS...At 17.0 feet, The parking area at the boat house floods.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 17.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM CDT Thursday was 18.4 feet.
- Forecast...The river is expected to fall below flood stage Sunday
afternoon and continue falling to 12.7 feet Thursday, May 07.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Louisiana 15.0 17.7 16.4 15.4 14.4 13.7 13.2
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
Maples432
WGUS83 KLSX 011817
FLSLSX
Flood Statement
National Weather Service St Louis MO
117 PM CDT Fri May 1 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Alton.
Mississippi River at Saverton.
Mississippi River at Winfield.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River near Herculaneum.
Mississippi River at Mel Price LD.
Mississippi River at Chester.
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC119-MOC183-030630-
/O.EXT.KLSX.FL.W.0057.000000T0000Z-260503T1000Z/
/ALOI2.1.ER.260430T0710Z.260501T0830Z.260502T0400Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SATURDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...Until late Saturday night.
* IMPACTS...At 21.7 feet, At this level, Highway 94 and the east end
of Harbor Point Road off of Missouri Highway 94 north of West Alton
begin flooding. Also, the access road the Lincoln Shields
recreation area off of U.S. Highway 367 just west of the Clark
bridge begins flooding.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 21.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 21.5 feet.
- Forecast...The river is expected to fall below flood stage late
this evening and continue falling to 14.9 feet Friday, May 08.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Alton 21.0 21.3 20.6 19.1 17.5 15.8 15.0
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC133-MOC099-030630-
/O.EXT.KLSX.FL.W.0056.000000T0000Z-260504T0000Z/
/HRCM7.1.ER.260430T0710Z.260501T1700Z.260502T1800Z.UU/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday evening.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 12:30 PM CDT Friday the stage was 27.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 PM CDT Friday was 27.1 feet.
- Forecast...The river is expected to fall below flood stage early
tomorrow afternoon and continue falling to 14.5 feet Friday, May
08.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Herculaneum 26.0 27.1 26.4 24.5 22.4 19.8 17.3
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-030630-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0900Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260504T0300Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until late Monday night.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 24.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 24.3 feet.
- Forecast...The river is expected to fall below flood stage late
Sunday evening and continue falling to 15.8 feet Friday, May 08.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Mel Price LD 21.0 24.2 23.5 22.0 20.4 18.7 17.4
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-030630-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260507T0142Z/
/CHSI2.1.ER.260429T0930Z.260502T1800Z.260505T1942Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday evening.
* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed
between County Road 322 and Levee Road (County Road 354) at Bois
Brule Creek.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 31.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 31.2 feet.
- Forecast...The river is expected to rise to a crest of 32.0 feet
early tomorrow afternoon. It will then fall below flood stage
early Tuesday afternoon.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Chester 27.0 31.2 31.9 31.7 30.5 27.9 25.3
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-030630-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T2230Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T1630Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday afternoon.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 22.9 feet.
- Forecast...The river is expected to fall below flood stage late
Monday morning and continue falling to 16.9 feet Friday, May 08.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Grafton 20.0 22.8 22.0 21.2 20.3 19.0 18.0
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC149-MOC173-030445-
/O.EXT.KLSX.FL.W.0024.000000T0000Z-260503T0434Z/
/SVRM7.1.ER.260415T0220Z.260428T2100Z.260501T2234Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is occurring.
* WHERE...Mississippi River at Saverton.
* WHEN...Until Saturday evening.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Friday the stage was 16.4 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:00 PM CDT Friday was 17.3 feet.
- Forecast...The river is expected to fall below flood stage late
this afternoon and continue falling to 11.7 feet Friday, May 08.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Saverton 16.0 16.4 15.4 14.4 13.5 12.8 12.4
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC113-030630-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T0200Z/
/CAGM7.1.ER.260415T1236Z.260429T1530Z.260503T2000Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 28.6 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 29.2 feet.
- Forecast...The river is expected to fall below flood stage Sunday
afternoon and continue falling to 22.3 feet Friday, May 08.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Winfield 26.0 28.6 27.7 26.4 25.2 24.1 23.3
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC127-030630-
/O.EXT.KLSX.FL.W.0022.000000T0000Z-260503T1800Z/
/HNNM7.1.ER.260413T1415Z.260428T1900Z.260502T1200Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Sunday afternoon.
* ADDITIONAL DETAILS...
- At 12:15 PM CDT Friday the stage was 17.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:15 PM CDT Friday was 18.6 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 14.8 feet Friday, May
08.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Hannibal 17.0 17.7 17.0 16.3 15.8 15.4 15.2
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-030630-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260504T2000Z/
/CLKM7.1.ER.260409T1800Z.260429T0230Z.260503T1400Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday afternoon.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 27.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 28.4 feet.
- Forecast...The river is expected to fall below flood stage late
Sunday morning and continue falling to 22.0 feet Friday, May 08.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Clarksville 25.0 27.5 26.4 25.1 24.0 23.2 22.6
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-030630-
/O.EXT.KLSX.FL.W.0020.000000T0000Z-260505T0000Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1800Z.NO/
117 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 1:00 PM CDT Friday the stage was 17.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 1:00 PM CDT Friday was 18.0 feet.
- Forecast...The river is expected to fall below flood stage early
Sunday afternoon and continue falling to 12.8 feet Friday, May
08.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Mississippi River
Louisiana 15.0 17.1 16.2 15.2 14.3 13.7 13.3
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
Peine413
WGUS83 KLSX 020240
FLSLSX
Flood Statement
National Weather Service St Louis MO
940 PM CDT Fri May 1 2026
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Alton.
Mississippi River near Herculaneum.
Mississippi River at Chester.
...The Flood Warning is extended for the following rivers in
Missouri...Illinois...
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC119-MOC183-030900-
/O.EXT.KLSX.FL.W.0057.000000T0000Z-260503T0855Z/
/ALOI2.1.ER.260430T0710Z.260501T0830Z.260502T0255Z.NO/
940 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SATURDAY NIGHT...
* WHAT...Minor flooding is occurring.
* WHERE...Mississippi River at Alton.
* WHEN...Until late Saturday night.
* IMPACTS...At 20.7 feet, During open river conditions (Mel Price
gates all open), Alta Villa Road off of Highway 94 begins flooding
and is closed.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Friday the stage was 21.0 feet and falling.
- Recent Activity...The river first rose above flood stage on April
29. It crested near 21.5 feet on May 1.
- Forecast...The river is expected to fall below flood stage late
this evening and continue falling over the coming days.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Alton 21.0 21.0 19.1 17.5 15.8 15.0 14.8
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC119-MOC183-031445-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T1030Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260504T0430Z.NO/
940 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until late Monday night.
* IMPACTS...At 24.0 feet, Alta Villa Road off of Highway 94 north of
West Alton is closed within a foot of this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Friday the stage was 23.9 feet and falling.
- Recent Activity...The river rose above flood stage on April 28.
It crested near 24.3 feet on May 1.
- Forecast...The river is expected to fall below flood stage late
Sunday evening and continue falling over the following days.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Mel Price LD 21.0 23.9 22.0 20.6 18.9 17.5 16.7
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC083-MOC183-031445-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260506T0430Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T2230Z.NO/
940 PM CDT Fri May 1 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday evening.
* IMPACTS...At 22.5 feet, East end of Main Street in Portage des
Sioux begins flooding near this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Friday the stage was 22.6 feet and falling.
- Recent Activity...The river rose above flood stage on April 19.
It crested near 22.9 feet on May 1.
- Forecast...The river is expected to fall below flood stage Monday
afternoon and continue falling over the following days.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Grafton 20.0 22.6 21.4 20.5 19.3 18.2 17.6
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC133-MOC099-031445-
/O.CON.KLSX.FL.W.0056.000000T0000Z-260504T0000Z/
/HRCM7.1.ER.260430T0710Z.260501T1700Z.260502T1800Z.UU/
940 PM CDT Fri May 1 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday evening.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 27.0 feet and falling.
- Recent Activity...The river first rose above flood stage on April
30. It crested near 27.1 feet on May 1.
- Forecast...The river is expected to fall below flood stage early
tomorrow afternoon and continue falling over the following days.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Herculaneum 26.0 27.0 24.5 22.4 19.8 17.3 15.6
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC077-157-MOC157-186-031445-
/O.CON.KLSX.FL.W.0040.000000T0000Z-260507T0142Z/
/CHSI2.1.ER.260429T0930Z.260502T1800Z.260505T1942Z.NO/
940 PM CDT Fri May 1 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday evening.
* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed
between County Road 322 and Levee Road (County Road 354) at Bois
Brule Creek.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Friday the stage was 31.1 feet and rising.
- Recent Activity...The river most recently rose above flood stage
on April 29.
- Forecast...The river is expected to rise to a crest of 31.9 feet
early tomorrow afternoon. It will then fall below flood stage
early Tuesday afternoon.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Chester 27.0 31.1 31.7 30.4 27.9 25.3 23.3
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
Kimble819
WGUS83 KLSX 021445
FLSLSX
Flood Statement
National Weather Service St Louis MO
945 AM CDT Sat May 2 2026
...The Flood Warning is extended for the following river in Missouri
and Illinois...
Mississippi River near Herculaneum.
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
Mississippi River at Winfield.
...The Flood Warning continues for the following river in Missouri
and Illinois...
Mississippi River at Chester.
Mississippi River at Louisiana.
Mississippi River at Clarksville.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC133-MOC099-040130-
/O.EXT.KLSX.FL.W.0056.000000T0000Z-260504T0130Z/
/HRCM7.1.ER.260430T0710Z.260501T1700Z.260502T1930Z.UU/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...Until Sunday evening.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Saturday the stage was 26.5 feet.
- Forecast...The river is expected to fall below flood stage this
afternoon.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Herculaneum 26.0 26.5 24.7 22.8 20.3 18.1 16.6
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-040245-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T1200Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260504T0600Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until Tuesday morning.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 23.1 feet.
- Forecast...The river is expected to fall below flood stage Monday
morning.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Mel Price LD 21.0 23.1 22.0 20.6 19.0 17.7 16.9
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-040245-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260507T0000Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1800Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday evening.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 30.9 feet.
- Forecast...The river is expected to rise to a crest of 31.4 feet
this afternoon.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Chester 27.0 30.9 31.1 29.8 27.6 25.3 23.6
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-040245-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260506T0600Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260505T0000Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE TUESDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until late Tuesday night.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 22.1 feet.
- Forecast...The river is expected to fall below flood stage Monday
evening.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Grafton 20.0 22.1 21.4 20.6 19.4 18.4 17.8
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC013-MOC113-040245-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T0900Z/
/CAGM7.1.ER.260415T1236Z.260429T1530Z.260504T0300Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until late Monday night.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 27.8 feet.
- Forecast...The river is expected to fall below flood stage Sunday
evening.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Winfield 26.0 27.8 26.8 25.5 24.5 23.7 23.2
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC149-MOC163-040245-
/O.EXT.KLSX.FL.W.0020.000000T0000Z-260505T0000Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1800Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 16.3 feet.
- Forecast...The river is expected to fall below flood stage Sunday
afternoon.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Louisiana 15.0 16.3 15.2 14.4 13.8 13.4 13.2
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC013-MOC163-040245-
/O.CON.KLSX.FL.W.0021.000000T0000Z-260505T0000Z/
/CLKM7.1.ER.260409T1800Z.260429T0230Z.260503T1800Z.NO/
945 AM CDT Sat May 2 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 26.6 feet.
- Forecast...The river is expected to fall below flood stage Sunday
afternoon.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Clarksville 25.0 26.6 25.3 24.1 23.3 22.8 22.5
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
Gosselin066
WGUS83 KLSX 030119
FLSLSX
Flood Statement
National Weather Service St Louis MO
819 PM CDT Sat May 2 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Chester.
Mississippi River at Grafton.
Mississippi River at Louisiana.
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Winfield.
Mississippi River at Clarksville.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC119-MOC183-041330-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0800Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260504T0200Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until late Monday night.
* IMPACTS...At 23.0 feet, Dresser Island Drive floods within a foot
of this level.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 22.3 feet and falling.
- Recent Activity...The river rose above flood stage on April 28,
cresting near 24.3 feet on MAy 1.
- Forecast...The river is expected to fall below flood stage late
tomorrow evening and continue falling over the following days.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Mel Price LD 21.0 22.3 20.5 19.0 17.7 17.0 16.5
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-041330-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T2125Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1525Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed
between County Road 322 and Levee Road (County Road 354) at Bois
Brule Creek.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 31.0 feet and falling.
- Recent Activity...The river rose above flood stage on April 29,
cresting near 31.4 feet on May 1.
- Forecast...The river is expected to fall below flood stage late
Tuesday morning and continue falling over the following days.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Chester 27.0 31.0 29.7 27.4 25.1 23.4 22.3
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-041330-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260506T0430Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T2230Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday evening.
* IMPACTS...At 21.5 feet, In Portage des Sioux, MO, Le Sieur Street
leading to the Marina and to Our Lady of the River Statue is
flooded.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 21.7 feet and falling.
- Recent Activity...The river rose above flood stage on April 19,
cresting near 22.9 feet on May 1.
- Forecast...The river is expected to fall below flood stage Monday
afternoon and continue falling over the following days.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Grafton 20.0 21.7 20.5 19.3 18.3 17.8 17.5
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC013-MOC113-041330-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T1000Z/
/CAGM7.1.ER.260415T1236Z.260429T1530Z.260504T0400Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until late Monday night.
* IMPACTS...At 27.5 feet, At this stage, Lock and Dam 25 will
stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet
of polyethylene plastic as a precaution.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 27.3 feet and falling.
- Recent Activity...The river rose above flood stage on April 15,
cresting near 29.6 feet on April 29.
- Forecast...The river is expected to fall below flood stage late
tomorrow evening and continue falling over the following days.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Winfield 26.0 27.3 25.6 24.5 23.8 23.3 23.0
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC013-MOC163-041330-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260505T0400Z/
/CLKM7.1.ER.260409T1800Z.260429T0230Z.260503T2200Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until Monday evening.
* IMPACTS...At 25.5 feet, State Route P east of Elsberry begins
flooding just east of the levee.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 26.2 feet and falling.
- Recent Activity...The river rose above flood stage on April 9. It
crested near 29.1 feet on April 28.
- Forecast...The river is expected to fall below flood stage
tomorrow afternoon and continue falling over the following days.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Clarksville 25.0 26.2 24.4 23.6 23.1 22.8 22.5
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-041330-
/O.CON.KLSX.FL.W.0020.000000T0000Z-260505T0000Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1800Z.NO/
819 PM CDT Sat May 2 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* IMPACTS...At 15.0 feet, The first quarter mile of Edison Avenue
beyond the railroad tracks begins flooding near this height.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 15.8 feet and falling.
- Recent Activity...The river rose above flood stage on April 9. It
crested near 18.8 feet on April 28.
- Forecast...The river is expected to fall below flood stage early
tomorrow afternoon and continue falling over the following days.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Louisiana 15.0 15.8 14.4 13.8 13.5 13.3 13.0
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
Kimble742
WGUS83 KLSX 031529
FLSLSX
Flood Statement
National Weather Service St Louis MO
1029 AM CDT Sun May 3 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Chester.
Mississippi River at Grafton.
Mississippi River at Winfield.
Mississippi River at Louisiana.
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Clarksville.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC119-MOC183-050200-
/O.EXT.KLSX.FL.W.0055.000000T0000Z-260505T0200Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260503T2000Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Mel Price LD.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 21.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 23.0 feet.
- Forecast...The river is expected to fall below flood stage late
this afternoon.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Mel Price LD 21.0 21.2 20.2 18.7 17.6 17.0 16.6
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC077-157-MOC157-186-050330-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1900Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1300Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 30.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 31.2 feet.
- Forecast...The river is expected to fall below flood stage
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Chester 27.0 30.1 29.3 27.1 24.8 23.2 22.2
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-050330-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T2200Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T1600Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday afternoon.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 20.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 22.1 feet.
- Forecast...The river is expected to fall below flood stage late
tomorrow morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Grafton 20.0 20.9 20.2 18.9 17.9 17.6 17.4
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC013-MOC113-050330-
/O.EXT.KLSX.FL.W.0023.000000T0000Z-260505T0800Z/
/CAGM7.1.ER.260415T1236Z.260429T1530Z.260504T0200Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...Until late Monday night.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 26.6 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 27.8 feet.
- Forecast...The river is expected to fall below flood stage late
this evening.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Winfield 26.0 26.6 25.4 24.3 23.6 23.4 23.1
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
ILC013-MOC163-050330-
/O.EXT.KLSX.FL.W.0021.000000T0000Z-260505T0800Z/
/CLKM7.1.ER.260409T1800Z.260429T0230Z.260504T0200Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until late Monday night.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 25.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 26.6 feet.
- Forecast...The river is expected to fall below flood stage late
this evening.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Clarksville 25.0 25.5 24.5 23.6 23.2 23.0 22.7
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-050000-
/O.CON.KLSX.FL.W.0020.000000T0000Z-260505T0000Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1800Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 15.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 16.3 feet.
- Forecast...The river is expected to fall below flood stage this
afternoon.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Louisiana 15.0 15.1 14.3 13.6 13.2 13.0 12.8
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
Britt558
WGUS83 KLSX 040137
FLSLSX
Flood Statement
National Weather Service St Louis MO
837 PM CDT Sun May 3 2026
...The Flood Warning continues for the following river in Illinois
and Missouri...
Mississippi River at Chester.
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor this
developing situation and issue follow up statements as conditions
change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC077-157-MOC157-186-051345-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1708Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1108Z.NO/
837 PM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 28.0 feet, Unleveed islands near Chester and the
prison farm floods.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Sunday the stage was 29.4 feet.
- Forecast...The river is expected to fall below flood stage
Tuesday morning.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Chester 27.0 29.4 26.9 24.6 23.2 22.4 21.9
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC083-MOC183-051345-
/O.EXT.KLSX.FL.W.0034.000000T0000Z-260505T1800Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T1200Z.NO/
837 PM CDT Sun May 3 2026
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Grafton.
* WHEN...Until Tuesday afternoon.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Sunday the stage was 20.3 feet.
- Forecast...The river is expected to fall below flood stage Monday
morning.
- Flood stage is 20.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Grafton 20.0 20.3 18.6 17.9 17.5 17.2 16.9
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
Gosselin618
WGUS83 KLSX 041559
FLSLSX
Flood Statement
National Weather Service St Louis MO
1059 AM CDT Mon May 4 2026
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
...The Flood Warning is cancelled for the following rivers in
Illinois...Missouri...
Mississippi River at Grafton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor this
developing situation and issue follow up statements as conditions
change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC083-MOC183-041700-
/O.CAN.KLSX.FL.W.0034.000000T0000Z-260504T1559Z/
/GRFI2.1.ER.260420T0010Z.260501T0430Z.260504T0710Z.NO/
1059 AM CDT Mon May 4 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Grafton.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Monday the stage was 19.5 feet.
- Forecast...The river is expected to fall to 16.0 feet Monday, May
11.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Grafton 20.0 19.5 18.3 17.6 17.2 16.8 16.5
&&
LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042
3895 9028 3891 9033
$$
ILC077-157-MOC157-186-060400-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1800Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1200Z.NO/
1059 AM CDT Mon May 4 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 28.0 feet, Unleveed islands near Chester and the
prison farm floods.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Monday the stage was 28.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 AM CDT Monday was 30.3 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 20.5 feet Monday, May
11.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Chester 27.0 28.8 27.0 24.7 23.3 22.4 21.8
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
Maples182
WGUS83 KLSX 050212
FLSLSX
Flood Statement
National Weather Service St Louis MO
912 PM CDT Mon May 4 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC077-157-MOC157-186-061415-
/O.EXT.KLSX.FL.W.0040.000000T0000Z-260506T1700Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1100Z.NO/
912 PM CDT Mon May 4 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 28.0 feet, Unleveed islands near Chester and the
prison farm floods.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 27.9 feet and falling.
- Recent Activity...The river rose above flood stage on April 29.
It crested near 31.4 feet on May 1.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling over the following days.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Chester 27.0 27.9 24.7 23.6 22.8 22.3 21.7
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
Kimble558
WGUS83 KLSX 051549
FLSLSX
Flood Statement
National Weather Service St Louis MO
1049 AM CDT Tue May 5 2026
...The Flood Warning is cancelled for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
ILC077-157-MOC157-186-051700-
/O.CAN.KLSX.FL.W.0040.000000T0000Z-260505T1549Z/
/CHSI2.1.ER.260429T0930Z.260502T0130Z.260505T1338Z.NO/
1049 AM CDT Tue May 5 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Chester.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Tuesday the stage was 26.7 feet.
- Forecast...The river is expected to fall to 19.9 feet Tuesday,
May 12.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Chester 27.0 26.7 24.9 23.6 23.0 22.4 21.8
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
MaplesWhat forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this river flood warning went out at Apr 27, 6:47 AM CDT, 8 hours 18 minutes earlier. Its key messages:
- While periods of storms are expected through Monday morning, the most potent thunderstorms will occur this afternoon and evening.
- Thunderstorms this afternoon and evening will be capable of damaging wind gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the weekend.
Area forecast discussion, Apr 27, 6:47 AM CDT, 8 hours 18 minutes before
Area Forecast Discussion...Updated Aviation National Weather Service Saint Louis MO 647 AM CDT Mon Apr 27 2026 .KEY MESSAGES... - While periods of storms are expected through Monday morning, the most potent thunderstorms will occur this afternoon and evening. - Thunderstorms this afternoon and evening will be capable of damaging wind gusts, large hail, and strong tornadoes. - A period of cool, calm weather is expected mid-week through the weekend. && .SHORT TERM... (Through Tuesday Night) Issued at 155 AM CDT Mon Apr 27 2026 Storms across southeastern Missouri continue to butt up against an instability gradient draped from north to south across Missouri. The warm air advection feeding these storms will also push greater instability slowly northeastward through this morning, though propagation vectors will favor convection continuing to move east- southeastward generally away from the CWA or into an unfavorable environment. Additionally, the low-level jet refocusing across Kansas will continue to support the downward trend in convection across southeastern Missouri early this morning. Any linger storms over the next couple of hours will be capable mainly of large hail, though there is also a very low damaging wind and tornado threat for storms that remain surface based. Our attention turns to the storms over eastern Kansas that are propagating eastward with the nose of the low-level jet. With the nose of this low-level jet edging into northeastern Missouri later this morning, the focus for these storms will spread into portions of the CWA north of I-70. Vertical thermal profiles suggest that this convection will be elevated, mitigating a threat of damaging wind gusts and/or tornadoes. However, with around 40 kts of effective shear and building MUCAPE, there is a low chance for isolated instances of large hail. How long this convection lingers is uncertain, although guidance trends have been toward a lull in convective activity in the wake of this convection and that associated with a cold front during the late afternoon and evening. Ahead of the front, the warm sector remains capped through much of the afternoon per a majority of deterministic soundings. Although, any remnant outflow or differential heating boundary from early day convection may serve as enough of a forcing mechanism to spawn discrete convection during the afternoon as lift from an approaching shortwave increases over the region. If this convection does form, it will be in an environment characterized by 2,000-2,500 J/kg of SBCAPE and roughly 50 kts of deep-layer shear. This will favor supercells capable of all hazards, with long curved hodographs favoring strong tornadoes, especially if storms are able to latch on to any remnant boundaries across the CWA. Where the environment isn't contaminated from earlier rounds of convection, additional updrafts are expected along the cold front as it enters the area 4-5pm. Forcing from the front paired with lift from the shortwave will lead to numerous updrafts along the front. While this will be occurring within a similar environment detailed prior, the number of updrafts paired with them occurring along the front may lead to destructive interactions and congealing into line segments and/or clusters. While this will tend to limit a strong tornado threat, storms will still be capable of all severe hazards. Convection is expected to depart the CWA with the front by 9-10pm. Even with the FROPA Monday evening, the threat for convection will continue on Tuesday. Guidance consensus has the front stalling just south of the CWA early Tuesday and then buckling northward as a shortwave moves through the Central Plains and into the Midwest through the day. This shortwave will send a subtle surface reflection through the Mid South along the front, with a brief period of warm air advection that will help force elevated convection for areas mainly along and south of I-70. If the front can move northward enough, shear profiles and instability amounts favor supercells capable primarily of large hail across far southeastern Missouri during the afternoon. Waning instability and the front continuing southward will bring an end to rain chances during the evening. Elmore && .LONG TERM... (Tuesday Night through Sunday) Issued at 155 AM CDT Mon Apr 27 2026 Both deterministic guidance and ensemble clusters keep upper-level troughing slowly moving eastward over the eastern CONUS through the long range forecast period. This will maintain northwesterly flow over the Middle Mississippi Valley through Saturday as several rounds of high pressure pass through the region. As a result, temperatures will run at or below climatological normals into the weekend and mostly dry weather is expected. Elmore && .AVIATION... (For the 12z TAFs through 12z Tuesday Morning) Issued at 647 AM CDT Mon Apr 27 2026 Thunderstorms are expected at times throughout the day, impacting all terminals. The greatest coverage of thunderstorms this morning is expected to be across central, northeastern MO into west-central IL impacting KCOU, KJEF, and KUIN, with lower confidence in thunderstorms reaching the St. Louis metro terminals through early afternoon. Another round of redevelopment will take place this afternoon and evening with the greatest chance of severe thunderstorms as well. These thunderstorms will be capable of hail, strong winds, and some tornadoes. Trends will need to be monitored for more significant terminal impacts beyond MVFR to IFR flight conditions. A cold front will pass through the region this evening, veering southerly winds to northwesterly with drier conditions prevailing. There is the potential for some post-frontal MVFR ceilings late tonight into Tuesday morning, with the highest chance of impacts at KUIN. However, given that confidence is low in impacts before the end of the TAF period, VFR flight conditions are maintained for now. Pfahler && .LSX WATCHES/WARNINGS/ADVISORIES... MO...None. IL...None. && WFO LSX
Hazardous weather outlook, Apr 27, 2:02 AM CDT, 13 hours 3 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 202 AM CDT Mon Apr 27 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-280715- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 202 AM CDT Mon Apr 27 2026 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Periods of thunderstorms are expected through the day into this evening. Thunderstorms this afternoon and evening will be capable of large hail, damaging wind gusts, and tornadoes. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report wind damage, hail occurrence and size, and tornado occurrence to NWS St. Louis. Elmore
In the hours before
Local storm report, Apr 27, 2:17 PM CDT, 48 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
217 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0148 PM Hail 1 S Saint John 38.70N 90.35W
04/27/2026 M1.00 Inch St. Louis MO Trained Spotter
At Midland and I-170.
&&
BrittLocal storm report, Apr 27, 2:23 PM CDT, 42 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
223 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0221 PM Hail Glen Carbon 38.76N 89.97W
04/27/2026 M1.00 Inch Madison IL Trained Spotter
&&
CarneyLocal storm report, Apr 27, 2:26 PM CDT, 39 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
226 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0619 AM Hail 2 W Saint Louis 38.65N 90.28W
04/27/2026 E1.00 Inch St. Louis City MO Public
Report from mPING: Quarter (1.00 in.).
0621 AM Hail 2 SE Hillsdale 38.66N 90.27W
04/27/2026 E1.00 Inch St. Louis City MO Public
Report from mPING: Quarter (1.00 in.).
0642 AM Hail 2 SE Hillsdale 38.66N 90.27W
04/27/2026 E1.25 Inch St. Louis City MO Public
Report from mPING: Half Dollar (1.25 in.).
0313 AM Hail 1 NW Bismarck 37.78N 90.63W
04/27/2026 E1.50 Inch St. Francois MO Public
Report from mPING: Ping Pong Ball (1.50
in.).
0318 AM Hail 1 NW Bismarck 37.78N 90.63W
04/27/2026 E1.75 Inch St. Francois MO Public
Report from mPING: Golf Ball (1.75 in.).
0320 AM Hail 1 NW Bismarck 37.78N 90.63W
04/27/2026 E2.00 Inch St. Francois MO Public
Report from mPING: Hen Egg (2.00 in.).
0329 AM Hail 1 SW Desloge 37.87N 90.53W
04/27/2026 E1.00 Inch St. Francois MO Public
Report from mPING: Quarter (1.00 in.).
0329 AM Hail 1 N Leadington 37.84N 90.48W
04/27/2026 E1.00 Inch St. Francois MO Public
Report from mPING: Quarter (1.00 in.).
0337 AM Hail 1 NW Farmington 37.79N 90.43W
04/27/2026 M1.25 Inch St. Francois MO Public
0339 AM Hail 1 S Farmington 37.76N 90.42W
04/27/2026 E1.75 Inch St. Francois MO Public
Report from mPING: Golf Ball (1.75 in.).
0358 AM Hail 5 E Farmington 37.77N 90.34W
04/27/2026 E1.50 Inch St. Francois MO Public
Report from mPING: Ping Pong Ball (1.50
in.).
0418 AM Hail 4 SE Farmington 37.74N 90.36W
04/27/2026 E2.00 Inch St. Francois MO Public
Report from mPING: Hen Egg (2.00 in.).
1225 PM Hail 2 S Harvester 38.72N 90.59W
04/27/2026 E1.00 Inch St. Charles MO Public
Report from mPING: Quarter (1.00 in.).
&&Local storm report, Apr 27, 2:28 PM CDT, 37 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
228 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0138 PM Hail 1 E Clarkson Valley 38.63N 90.58W
04/27/2026 E1.25 Inch St. Louis MO Public
0134 PM Hail 1 SW Bridgeton 38.75N 90.44W
04/27/2026 E1.50 Inch St. Louis MO Public
Report from mPING: Ping Pong Ball (1.50
in.).
&&Local storm report, Apr 27, 2:37 PM CDT, 28 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
237 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0221 PM Hail 4 SE Jonesburg 38.82N 91.26W
04/27/2026 E1.00 Inch Warren MO Public
&&Local storm report, Apr 27, 2:45 PM CDT, 20 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
245 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0152 PM Tstm Wnd Dmg 2 SW Marine 38.77N 89.80W
04/27/2026 Madison IL Public
Shed damaged.
&&
CarneyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:43 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 30 min |
| Apr 26, 10:08 PM CDT | Tornado Warning | LSX | Osage | 13 min |
| Apr 27, 1:06 AM CDT | Severe Thunderstorm Warning | LSX | Crawford | 39 min |
| Apr 27, 2:10 AM CDT | Areal Flood Advisory | LSX | Crawford | 3 hr |
| Apr 27, 2:44 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 31 min |
| Apr 27, 3:08 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois, Washington | 52 min |
| Apr 27, 3:36 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 39 min |
| Apr 27, 3:41 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 49 min |
| Apr 27, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 24 min |
| Apr 27, 6:52 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 38 min |
| Apr 27, 7:35 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Monroe, Shelby | 55 min |
| Apr 27, 7:54 AM CDT | Tornado Warning | LSX | Monroe, Ralls | 51 min |
| Apr 27, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Marion, Pike, Ralls | 65 min |
| Apr 27, 8:24 AM CDT | Tornado Warning | LSX | Pike, Ralls | 51 min |
| Apr 27, 10:09 AM CDT | River Flood Warning | LSX | Osage | 24 hr |
| Apr 27, 10:41 AM CDT | Flash Flood Warning | LSX | Boone, Cole, Moniteau | 3 hr |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 10 more | 10 hr |
| Apr 27, 11:48 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau, Montgomery and 1 more | 3 hr |
| Apr 27, 12:09 PM CDT | Areal Flood Advisory | LSX | Lincoln, Pike, Warren | 3 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 48 min |
| Apr 27, 1:25 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 37 min |
| Apr 27, 1:51 PM CDT | Areal Flood Advisory | LSX | Montgomery, Warren | 3 hr |
| Apr 27, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | City of Saint Louis | 27 min |
| Apr 27, 2:05 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike, Warren | 40 min |
| Apr 27, 2:13 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 3 hr |
| Apr 27, 2:39 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 51 min |
| Apr 27, 2:42 PM CDT | River Flood Warning | LSX | Monroe | 20 hr |
| Apr 27, 2:49 PM CDT | Tornado Warning | LSX | Saint Charles, Warren | 41 min |
| Apr 27, 2:54 PM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 6 days |
| Apr 27, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 48 min |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 46 min |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 41 min |
| Apr 27, 3:25 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway | 42 min |
| Apr 27, 3:37 PM CDT | Flash Flood Warning | LSX | Boone | 5 hr |
| Apr 27, 3:39 PM CDT | River Flood Warning | LSX | Lewis | 11 hr |
| Apr 27, 3:41 PM CDT | River Flood Warning | LSX | Lincoln | 24 hr |
| Apr 27, 3:41 PM CDT | Tornado Warning | LSX | Audrain, Callaway | 49 min |
| Apr 27, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 62 min |
| Apr 27, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 44 min |
| Apr 27, 3:46 PM CDT | Tornado Warning | LSX | Boone | 14 min |
| Apr 27, 3:53 PM CDT | River Flood Warning | LSX | Lincoln | 4 days |
| Apr 27, 3:59 PM CDT | River Flood Warning | LSX | Crawford, Washington | 18 hr |
| Apr 27, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Moniteau | 60 min |
| Apr 27, 4:07 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 53 min |
| Apr 27, 4:09 PM CDT | Tornado Warning | LSX | Audrain, Montgomery, Pike, Ralls | 51 min |
| Apr 27, 4:13 PM CDT | Flash Flood Warning | LSX | Audrain | 5 hr |
| Apr 27, 4:29 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 46 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | Marion | 29 min |
| Apr 27, 4:35 PM CDT | Flash Flood Warning | LSX | Monroe | 5 hr |
| Apr 27, 4:46 PM CDT | Tornado Warning | LSX | Pike | 44 min |
| Apr 27, 4:52 PM CDT | Flash Flood Warning | LSX | Marion, Ralls | 4 hr |
| Apr 27, 4:54 PM CDT | Tornado Warning | LSX | Audrain, Pike | 21 min |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Callaway, Osage | 4 days |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 3 days |
| Apr 27, 4:57 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike | 63 min |
| Apr 27, 5:00 PM CDT | Tornado Warning | LSX | Pike | 30 min |
| Apr 27, 5:04 PM CDT | River Flood Warning | LSX | Marion | 22 hr |
| Apr 27, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 19 min |
| Apr 27, 5:14 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 61 min |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | Pike, Ralls | 3 hr |
| Apr 27, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 39 min |
| Apr 27, 5:32 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 43 min |
| Apr 27, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 58 min |
| Apr 27, 5:55 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 50 min |
| Apr 27, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 48 min |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 46 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 36 min |
| Apr 27, 6:26 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 64 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 47 min |
| Apr 27, 6:31 PM CDT | Tornado Warning | LSX | Franklin, Jefferson, Washington | 59 min |
| Apr 27, 6:40 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 48 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 32 min |
| Apr 27, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 45 min |
| Apr 27, 6:32 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 43 min |
| Apr 27, 7:03 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion, Washington | 57 min |
| Apr 27, 7:59 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 33 min |
| Apr 27, 8:57 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 48 min |
| Apr 27, 9:03 AM CDT | Tornado Warning | LSX | Greene, Pike | 42 min |
| Apr 27, 9:44 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 61 min |
Nearby
River Flood Warnings in Missouri, 2026River Flood Warnings in Illinois, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.