Alert archive / Illinois / River Flood Warnings in 2026
River Flood Warning 55, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Apr 28, 2026, 11:38 AM CDT for Madison County, Illinois; Saint Charles County, Missouri. It took effect at Apr 28, 2026, 10:02 PM CDT. It was in force for 6 days.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2026, 11:38 AM CDT (16:38 UTC)
- In effect from
- Apr 28, 2026, 10:02 PM CDT
- Expired
- May 4, 2026, 4:00 PM CDT
- In force
- 6 days
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Madison County, IL, Saint Charles County, MO
The radar
The St Louis radar (KLSX), 52 km from the middle of the area, began a volume at 16:40 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 Mel Price (Alton) Lock and Dam (ALNI2).
- Action stage
- 19 ft
- Minor stage
- 21 ft
- Moderate stage
- 29 ft
- Major stage
- 34 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05587541, 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.
954
WGUS43 KLSX 281638
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
1138 AM CDT Tue Apr 28 2026
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...Illinois...
Mississippi River at Mel Price LD.
Mississippi River near Herculaneum.
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.
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
&&
ILC119-MOC183-300445-
/O.NEW.KLSX.FL.W.0055.260429T0430Z-260504T2100Z/
/ALNI2.1.ER.260429T0430Z.260501T0000Z.260503T1500Z.NO/
1138 AM CDT Tue Apr 28 2026
...FLOOD WARNING IN EFFECT FROM THIS EVENING TO MONDAY AFTERNOON...
* WHAT...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 11:00 AM CDT Tuesday the stage was 20.3 feet.
- Forecast...The river is expected to rise above flood stage late
this evening to a crest of 23.5 feet Thursday evening. 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 Wed Thu Fri Sat Sun
Mississippi River
Mel Price LD 21.0 20.3 21.6 23.2 23.5 22.7 21.2
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC133-MOC099-300445-
/O.NEW.KLSX.FL.W.0056.260429T2034Z-260504T1500Z/
/HRCM7.1.ER.260429T2034Z.260501T1200Z.260503T0834Z.UU/
1138 AM CDT Tue Apr 28 2026
...FLOOD WARNING IN EFFECT FROM WEDNESDAY AFTERNOON TO MONDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River near Herculaneum.
* WHEN...From Wednesday afternoon to Monday morning.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Tuesday the stage was 22.0 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow afternoon to a crest of 28.4 feet Friday morning. It
will then fall below flood stage early Sunday morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
Herculaneum 26.0 22.0 24.9 27.5 28.4 27.7 25.6
&&
LAT...LON 3843 9032 3843 9022 3839 9025 3828 9029
3822 9027 3799 8992 3795 9005 3802 9015
3799 9021 3806 9021 3819 9041 3838 9039
$$
ILC119-MOC183-300445-
/O.NEW.KLSX.FL.W.0057.260430T0800Z-260503T1200Z/
/ALOI2.1.ER.260430T0800Z.260501T0000Z.260502T0600Z.NO/
1138 AM CDT Tue Apr 28 2026
...FLOOD WARNING IN EFFECT FROM LATE WEDNESDAY NIGHT TO SUNDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Alton.
* WHEN...From late Wednesday night to 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 11:00 AM CDT Tuesday the stage was 18.2 feet.
- Forecast...The river is expected to rise above flood stage early
Thursday morning to a crest of 21.5 feet Thursday evening. 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 Wed Thu Fri Sat Sun
Mississippi River
Alton 21.0 18.2 19.7 21.2 21.5 20.7 19.1
&&
LAT...LON 3891 9033 3895 9028 3889 9014 3884 9018
$$
ILC163-MOC189-510-300445-
/O.NEW.KLSX.FL.W.0058.260430T0824Z-260504T0100Z/
/EADM7.1.ER.260430T0824Z.260501T1200Z.260502T1912Z.NO/
1138 AM CDT Tue Apr 28 2026
...FLOOD WARNING IN EFFECT FROM LATE WEDNESDAY NIGHT TO SUNDAY
EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at St. Louis.
* WHEN...From late Wednesday night to Sunday evening.
* IMPACTS...At 31.9 feet, The entrance to the parking garage just
north of Eads bridge begins flooding.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Tuesday the stage was 24.7 feet.
- Forecast...The river is expected to rise above flood stage early
Thursday morning to a crest of 31.2 feet Friday morning. It will
then fall below flood stage early Saturday afternoon.
- Flood stage is 30.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Mississippi River
St. Louis 30.0 24.7 27.6 30.3 31.2 30.5 28.3
&&
LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016
3843 9022 3843 9032 3856 9029 3863 9020
3872 9023
$$
Fuchs11 follow-up statements
773
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
$$
ILC149-MOC163-050000-
/O.CON.KLSX.FL.W.0020.000000T0000Z-260505T0000Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1800Z.NO/
1029 AM CDT Sun May 3 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Monday evening.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Sunday the stage was 15.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 AM CDT Sunday was 16.3 feet.
- Forecast...The river is expected to fall below flood stage this
afternoon.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Louisiana 15.0 15.1 14.3 13.6 13.2 13.0 12.8
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
Britt299
WGUS83 KLSX 032105
FLSLSX
Flood Statement
National Weather Service St Louis MO
405 PM CDT Sun May 3 2026
...The Flood Warning is cancelled for the following river in Illinois
and Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Louisiana.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
ILC119-MOC183-032215-
/O.CAN.KLSX.FL.W.0055.000000T0000Z-260503T2105Z/
/ALNI2.1.ER.260428T2312Z.260501T1100Z.260503T1720Z.NO/
405 PM CDT Sun May 3 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Mel Price LD.
* ADDITIONAL DETAILS...
- At 3:30 PM CDT Sunday the stage was 20.8 feet.
- Forecast...The river is expected to continue to fall to near 18.7
feet Tuesday morning.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Mel Price LD 21.0 20.8 20.2 18.7 17.6 17.0 16.6
&&
LAT...LON 3889 9014 3889 9009 3881 9001 3881 9017
3884 9018
$$
ILC149-MOC163-032215-
/O.CAN.KLSX.FL.W.0020.000000T0000Z-260503T2105Z/
/LUSM7.1.ER.260409T1626Z.260429T0100Z.260503T1715Z.NO/
405 PM CDT Sun May 3 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Louisiana.
* ADDITIONAL DETAILS...
- At 3:30 PM CDT Sunday the stage was 14.9 feet.
- Forecast...The river is expected to continue to fall to near 13.6
feet Tuesday morning.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Louisiana 15.0 14.9 14.3 13.6 13.2 13.0 12.8
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
GosselinWhat 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 28, 4:30 AM CDT, 7 hours 8 minutes earlier. Its key messages:
- -There is 40-80% chance for showers and thunderstorms this afternoon and evening, a few may be strong to severe across southeast Missouri and southern Illinois this afternoon. -The remainder of the work week will be seasonally cool and largely dry.
Area forecast discussion, Apr 28, 4:30 AM CDT, 7 hours 8 minutes before
Area Forecast Discussion...Updated Aviation National Weather Service Saint Louis MO 430 AM CDT Tue Apr 28 2026 .KEY MESSAGES... -There is 40-80% chance for showers and thunderstorms this afternoon and evening, a few may be strong to severe across southeast Missouri and southern Illinois this afternoon. -The remainder of the work week will be seasonally cool and largely dry. && .SHORT TERM... (Through Late Wednesday Afternoon) Issued at 328 AM CDT Tue Apr 28 2026 Yesterday's cold front is now stretched KHRO in northwest Arkansas through southeast Missouri to near K1H2 in central Illinois. While this feature will continue to sink southward through the morning hours, an approaching mid-level shortwave and strong southerly low- level flow will cause the front to stall this afternoon near the Missouri-Arkansas border. Showers and thunderstorms will blossom north of the front across the forecast area this afternoon from the influence of the shortwave and warm air advection overriding the surface front. A few thunderstorms across southeast Missouri and southern Illinois could become strong to severe between 2-8 PM today, though uncertainty remains in if the ingredients will be present for these storms to organize and maintain themselves. Instability is our limiting factor thanks to a 800-700 mb warm nose that will be reinforced by the ongoing warm air advection. The HREF indicates that around 750 J/kg of MUCAPE will be available across far southeast Missouri, though the 50-60 kts of 0-6 km shear may be too strong to balance this low amount of instability. Storms in this environment have the potential to shear out before producing severe impacts. Any storms that form from this elevated instability and become sufficiently strong will be capable of quarter sized hail. SBCAPE is at even more of a premium due to the anticipated warm nose, yet the HREF indicates as much as 1000 J/kg (worst case scenario). If this surface based instability is realized and storms are able to remain organized, damaging winds and hail will be the main threats. Tornadoes are not anticipated to form from these storms due to very weak low-level shear. The mid-level shortwave will exit the area tonight, and combined with an incoming surface high, will push showers and thunderstorms eastward into the Ohio River Valley. At the same time, a low-level secondary cold front will slowly slide through the forecast area early Wednesday. The combination of these factors will result in a dry and seasonally cool day with temperatures peaking in the 60s areawide. Delia && .LONG TERM... (Wednesday Night through Monday) Issued at 328 AM CDT Tue Apr 28 2026 Heading into the second half of the work week the 500 mb flow will start to shift from its previously stagnant pattern. By Thursday the mid-level low will be churning over the Great Lakes region, having moved eastward from south-central Canada, though the mid-Mississippi Valley will remain in northwest flow. At the surface a weak frontal boundary will be stretched across the central CONUS, bisecting a portion of the forecast area. Lift along the front as well as aloft will be weak, so despite ensemble guidance indicating about a 40% chance for showers along the front Thursday, confidence is low in widespread, significant precipitation. Another, more robust mid-level shortwave will push through the mid- Mississippi Valley Friday as the mid-level low shifts east out of the Great Lakes region. At the same time a mid-level ridge will build into the Intermountain West, leaving the mid-Mississippi Valley in strong northwest flow in the wake of the shortwave. This flow will prevail through the end of the weekend, and extends down to the low-levels, where 850 mb temperatures will cool into the 10th percentile through Saturday. Seasonally cool temperatures with highs in the 60s will persist through Saturday as a result. By Sunday the low-level flow will become more westerly, advecting the thermal ridge into the area and kicking off a clear warming trend that is evident in the interquartile high temperature spread. The 25th percentile jumps from 60-70 between Saturday and Sunday, though the interquartile spread is about 6-10 degrees from the weekend onward. This uncertainty is due to uncertainty in the evolution of the mid- level and surface pattern beyond Sunday. Ensemble guidance shows chances for precipitation returning to the region for next week, though specifics remain elusive at this point. Delia && .AVIATION... (For the 12z TAFs through 12z Wednesday Morning) Issued at 416 AM CDT Tue Apr 28 2026 An MVFR stratus deck has moved into the region in the wake of yesterday's precipitation and cold front. It's currently impacting KUIN, KCOU, and KJEF with MVFR flight conditions. The southeastern edge of the stratus is right over KSTL and KSUS, causing the terminals to scatter between 3,000-3,800 ft. Uncertainty remains in if the stratus will progress southeast as guidance indicates, or if it will stall in it's current location as observations are pointing toward. I've leaned towards the observations within the forecast and put VFR ceilings in at KSTL, KSUS, and KCPS. The MVFR stratus is expected to lift during the late morning into early afternoon, bringing all terminals to VFR flight conditions. Showers and thunderstorms will move through the region this afternoon into the evening hours, impacting mainly the mid- Missouri (KJEF, KCOU) and St. Louis metro terminals (KSTL, KSUS, KCPS). Confidence is lower in showers making it into KUIN, so have kept showers out of this terminal for the moment. Showers and thunderstorms will come to an end overnight, leaving conditions dry for the remainder of the forecast. MVFR ceilings are expected to move into the St. Louis metro terminals during the evening with the showers and thunderstorms, though it is expected to be rather progressive as another surface high pressure moves into the region and shunts the MVFR stratus to the east with the precipitation. Delia && .LSX WATCHES/WARNINGS/ADVISORIES... MO...None. IL...None. && WFO LSX
Hazardous weather outlook, Apr 27, 9:46 PM CDT, 13 hours 52 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 946 PM 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>075-084-085-099-290300- 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- 946 PM 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...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Jaja
In the hours before
Local storm report, Apr 28, 9:28 AM CDT, 2 hours 10 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
928 AM CDT Tue Apr 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 PM Tstm Wnd Dmg Hamel 38.89N 89.84W
04/27/2026 Madison IL Newspaper
Large tree limb blown down onto house.
&&
CarneyLocal storm report, Apr 28, 10:16 AM CDT, 1 hour 22 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1016 AM CDT Tue Apr 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM Tstm Wnd Dmg Medora 39.18N 90.14W
04/27/2026 Macoupin IL Emergency Mngr
Shed collapsed.
&&
CarneyLocal storm report, Apr 28, 11:04 AM CDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1104 AM CDT Tue Apr 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0810 PM Tstm Wnd Dmg Ellington 37.24N 90.97W
04/27/2026 Reynolds MO Law Enforcement
Trees blown down in Ellington.
&&
CarneyLocal storm report, Apr 28, 11:24 AM CDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1124 AM CDT Tue Apr 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM Tstm Wnd Dmg Centralia 38.52N 89.13W
04/27/2026 Marion IL Emergency Mngr
Power poles and tree damage.
&&
CarneyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:09 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 51 min |
| Apr 27, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 63 min |
| Apr 27, 7:16 PM CDT | Flash Flood Warning | LSX | Montgomery | 5 hr |
| Apr 27, 7:22 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 38 min |
| Apr 27, 7:24 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 51 min |
| Apr 27, 7:50 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Madison, Marion | 55 min |
| Apr 27, 7:52 PM CDT | Tornado Warning | LSX | Clinton, Saint Clair | 38 min |
| Apr 27, 7:54 PM CDT | Areal Flood Advisory | LSX | Madison | 4 hr |
| Apr 27, 7:56 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Monroe, Randolph, Saint Clair, Washington | 64 min |
| Apr 27, 7:59 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Apr 27, 8:15 PM CDT | Tornado Warning | LSX | Clinton, Fayette, Marion | 45 min |
| Apr 27, 8:22 PM CDT | Areal Flood Advisory | LSX | Bond | 6 hr |
| Apr 27, 8:30 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion, Washington | 37 min |
| Apr 27, 8:44 PM CDT | Tornado Warning | LSX | Marion | 17 min |
| Apr 27, 8:55 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 30 min |
| Apr 27, 10:37 PM CDT | River Flood Warning | LSX | Adams | 37 hr |
| Apr 27, 10:37 PM CDT | River Flood Warning | LSX | Adams | 56 hr |
| Apr 27, 11:43 PM CDT | Areal Flood Warning | LSX | Macoupin | 4 hr |
| Apr 28, 12:16 AM CDT | Areal Flood Warning | LSX | Montgomery | 6 hr |
| Apr 28, 1:50 AM CDT | Areal Flood Warning | LSX | Fayette | 6 hr |
| Apr 28, 7:40 AM CDT | Areal Flood Warning | LSX | Fayette | 12 hr |
| Apr 28, 11:25 AM CDT | River Flood Warning | LSX | Brown | 25 hr |
| Apr 28, 11:25 AM CDT | River Flood Warning | LSX | Morgan, Pike | 4 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Monroe | 4 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Madison | 5 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Saint Clair | 5 days |
| Apr 27, 7:27 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 48 min |
| Apr 27, 7:34 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 102 min |
| Apr 27, 8:00 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 25 min |
| Apr 27, 8:03 PM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois, Washington | 29 min |
| Apr 27, 8:05 PM CDT | Tornado Warning | LSX | Reynolds | 40 min |
| Apr 27, 8:31 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 32 min |
| Apr 28, 3:13 AM CDT | River Flood Warning | LSX | Cole | 41 hr |
| Apr 28, 2:18 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Moniteau | 12 min |
Nearby
River Flood Warnings in Illinois, 2026River Flood Warnings in Missouri, 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.