Alert archive / Illinois / River Flood Warnings in 2026
River Flood Warning 87, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Jun 13, 2026, 11:41 AM CDT for Pike County, Illinois; Marion County, Missouri. It took effect at Jun 13, 2026, 10:20 PM CDT. It was in force for 5 days.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2026, 11:41 AM CDT (16:41 UTC)
- In effect from
- Jun 13, 2026, 10:20 PM CDT
- Expired
- Jun 18, 2026, 7:00 PM CDT
- In force
- 5 days
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Pike County, IL, Marion County, MO
The radar
The St Louis radar (KLSX), 131 km from the middle of the area, began a volume at 16:42 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 Hannibal (HNNM7).
- Action stage
- 15 ft
- Minor stage
- 17 ft
- Moderate stage
- 22 ft
- Major stage
- 24 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05501600, 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.
890
WGUS43 KLSX 131641
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
1141 AM CDT Sat Jun 13 2026
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...Illinois...
Mississippi River at Hannibal.
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
&&
ILC149-MOC127-150445-
/O.NEW.KLSX.FL.W.0087.260615T1800Z-260619T0000Z/
/HNNM7.1.ER.260615T1800Z.260616T1800Z.260617T1800Z.NO/
1141 AM CDT Sat Jun 13 2026
...FLOOD WARNING IN EFFECT FROM MONDAY AFTERNOON TO THURSDAY
EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...From Monday afternoon to Thursday evening.
* IMPACTS...At 17.0 feet, John Hay Recreation Area on east side
(inside the Illinois Sny Levee) begins flooding.
* ADDITIONAL DETAILS...
- At 11:15 AM CDT Saturday the stage was 17.0 feet.
- Forecast...The river will fall below flood stage late this
morning to 16.6 feet early tomorrow afternoon. It will then rise
above flood stage early Monday afternoon to 17.3 feet Tuesday
evening. It will fall below flood stage again early Wednesday
afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Mississippi River
Hannibal 17.0 17.0 16.6 16.9 17.2 17.2 16.0
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
Kimble4 follow-up statements
930
WGUS83 KLSX 140320
FLSLSX
Flood Statement
National Weather Service St Louis MO
1020 PM CDT Sat Jun 13 2026
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Hannibal.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Clarksville.
Mississippi River at Chester.
Mississippi River at Louisiana.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC149-MOC127-151530-
/O.EXT.KLSX.FL.W.0087.260614T0320Z-260619T0000Z/
/HNNM7.1.ER.260613T1950Z.260615T1800Z.260617T1800Z.NO/
1020 PM CDT Sat Jun 13 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO THURSDAY
EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...From this evening to Thursday evening.
* IMPACTS...At 17.0 feet, John Hay Recreation Area on east side
(inside the Illinois Sny Levee) begins flooding.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Saturday the stage was 17.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:15 PM CDT Saturday was 17.1 feet.
- Forecast...The river is expected to rise to a crest of 17.4 feet
early Monday afternoon. It will then fall below flood stage early
Wednesday afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Hannibal 17.0 17.1 17.3 17.4 17.2 16.1 14.5
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-151530-
/O.EXT.KLSX.FL.W.0084.000000T0000Z-260620T1048Z/
/CLKM7.1.ER.260613T0630Z.260617T0600Z.260619T0448Z.NO/
1020 PM CDT Sat Jun 13 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until late Friday night.
* IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off
Highway 79 begins flooding.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Saturday the stage was 25.7 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 PM CDT Saturday was 25.7 feet.
- Forecast...The river is expected to rise to a crest of 26.8 feet
early Wednesday morning. It will then fall below flood stage late
Thursday 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 25.7 25.9 26.6 26.8 26.2 24.3
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC077-157-MOC157-186-150600-
/O.EXT.KLSX.FL.W.0088.260615T0000Z-260615T0600Z/
/CHSI2.1.ER.260615T0000Z.260619T0000Z.260620T2230Z.NO/
1020 PM CDT Sat Jun 13 2026
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING TO LATE SUNDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...From Sunday evening to late Sunday night.
* IMPACTS...At 28.0 feet, Unleveed islands near Chester and the
prison farm floods.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Saturday the stage was 25.4 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 29.2 feet Thursday evening. It
will then fall below flood stage Saturday, June 20.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Chester 27.0 25.4 27.6 28.2 28.7 29.0 29.2
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC149-MOC163-151530-
/O.CON.KLSX.FL.W.0083.000000T0000Z-260620T0712Z/
/LUSM7.1.ER.260612T1715Z.260616T1800Z.260619T0112Z.NO/
1020 PM CDT Sat Jun 13 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until late Friday night.
* IMPACTS...At 17.0 feet, The parking area at the boat house floods.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Saturday the stage was 16.2 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 PM CDT Saturday was 16.2 feet.
- Forecast...The river is expected to rise to a crest of 16.7 feet
early Tuesday afternoon. It will then fall below flood stage
Thursday evening.
- 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 16.2 16.4 16.6 16.7 16.0 14.0
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
19606
WGUS83 KLSX 141625
FLSLSX
Flood Statement
National Weather Service St Louis MO
1125 AM CDT Sun Jun 14 2026
...The Flood Warning is extended for the following rivers in
Missouri...Illinois...
Mississippi River at Hannibal.
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River at Saverton.
Mississippi River at Winfield.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
ILC149-MOC127-160430-
/O.EXT.KLSX.FL.W.0087.000000T0000Z-260619T0200Z/
/HNNM7.1.ER.260613T1950Z.260616T1200Z.260617T2000Z.NO/
1125 AM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Thursday evening.
* IMPACTS...At 18.0 feet, The northern end of Southside Recreation #2
Park along Bear Creek begins flooding at this height. Gate wells
are shut down to prevent the sewers from backing up. Also at this
level pumps are set to standby.
* ADDITIONAL DETAILS...
- At 10:15 AM CDT Sunday the stage was 17.0 feet.
- Recent Activity...The river rose above flood stage on June 13,
peaking at 17.1 feet.
- Forecast...The river is expected to rise to a crest of 17.6 feet
Tuesday morning. It will then fall below flood stage Wednesday
afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Hannibal 17.0 17.0 17.3 17.6 17.4 16.0 14.3
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-160430-
/O.EXT.KLSX.FL.W.0084.000000T0000Z-260620T0834Z/
/CLKM7.1.ER.260613T0630Z.260617T0600Z.260619T0234Z.NO/
1125 AM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until late Friday night.
* IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off
Highway 79 begins flooding.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Sunday the stage was 25.8 feet and rising.
- Recent Activity...The river rose above flood stage on June 13.
- Forecast...The river is expected to rise to a crest of 27.1 feet
early Wednesday morning. It will then fall below flood stage late
Thursday 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 25.8 26.2 26.8 27.1 26.3 24.0
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-160430-
/O.EXT.KLSX.FL.W.0083.000000T0000Z-260620T0500Z/
/LUSM7.1.ER.260612T1715Z.260616T1800Z.260618T2300Z.NO/
1125 AM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until late Friday night.
* IMPACTS...At 17.0 feet, The parking area at the boat house floods.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Sunday the stage was 16.2 feet.
- Recent Activity...The river rose above flood stage on June 12.
- Forecast...The river is expected to rise to a crest of 17.0 feet
early Tuesday afternoon. It will then fall below flood stage
Thursday evening.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Louisiana 15.0 16.2 16.5 16.9 17.0 16.0 13.8
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC149-MOC173-160430-
/O.EXT.KLSX.FL.W.0089.260615T1200Z-260619T0730Z/
/SVRM7.1.ER.260615T1200Z.260616T1800Z.260618T0130Z.NO/
1125 AM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT FROM MONDAY MORNING TO LATE THURSDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...From Monday morning to late Thursday 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 AM CDT Sunday the stage was 15.6 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow morning to a crest of 16.7 feet early Tuesday afternoon.
It will then fall below flood stage Wednesday evening.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Saverton 16.0 15.6 16.0 16.6 16.6 15.2 12.8
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC113-160430-
/O.EXT.KLSX.FL.W.0090.260615T1800Z-260620T1424Z/
/CAGM7.1.ER.260615T1800Z.260618T0000Z.260619T0824Z.NO/
1125 AM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT FROM MONDAY AFTERNOON TO SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...From Monday afternoon to Saturday morning.
* IMPACTS...At 27.5 feet, At this stage, Lock and Dam 25 will
stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet
of polyethylene plastic as a precaution.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Sunday the stage was 25.4 feet and rising.
- Forecast...The river is expected to rise above flood stage early
tomorrow afternoon to a crest of 27.0 feet Wednesday evening. It
will then fall below flood stage early Friday morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Mississippi River
Winfield 26.0 25.4 25.8 26.3 26.9 26.9 25.7
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
Kimble339
WGUS83 KLSX 150114
FLSLSX
Flood Statement
National Weather Service St Louis MO
814 PM CDT Sun Jun 14 2026
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River at Chester.
Mississippi River at Saverton.
Mississippi River at Winfield.
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
&&
ILC149-MOC127-161315-
/O.EXT.KLSX.FL.W.0087.000000T0000Z-260619T0000Z/
/HNNM7.1.ER.260613T1950Z.260616T1800Z.260617T1800Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Hannibal.
* WHEN...Until Thursday evening.
* IMPACTS...At 17.0 feet, John Hay Recreation Area on east side
(inside the Illinois Sny Levee) begins flooding.
* ADDITIONAL DETAILS...
- At 7:15 PM CDT Sunday the stage was 17.0 feet.
- Forecast...The river is expected to rise to a crest of 17.4 feet
early Tuesday afternoon. It will then fall below flood stage
early Wednesday afternoon.
- Flood stage is 17.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Hannibal 17.0 17.0 17.3 17.2 15.9 14.3 13.2
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC013-MOC163-161315-
/O.EXT.KLSX.FL.W.0084.000000T0000Z-260620T0800Z/
/CLKM7.1.ER.260613T0630Z.260617T0000Z.260619T0200Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Clarksville.
* WHEN...Until late Friday night.
* IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off
Highway 79 begins flooding.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Sunday the stage was 25.9 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM CDT Sunday was 25.9 feet.
- Forecast...The river is expected to rise to a crest of 26.9 feet
Tuesday evening. It will then fall below flood stage late
Thursday evening.
- Flood stage is 25.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Clarksville 25.0 25.9 26.8 26.9 26.2 23.9 21.8
&&
LAT...LON 3939 9097 3946 9088 3940 9081 3932 9075
3925 9071 3925 9083 3930 9090 3932 9088
3936 9092 3935 9095
$$
ILC149-MOC163-161315-
/O.EXT.KLSX.FL.W.0083.000000T0000Z-260620T0448Z/
/LUSM7.1.ER.260612T1715Z.260616T1200Z.260618T2248Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Mississippi River at Louisiana.
* WHEN...Until Friday evening.
* IMPACTS...At 17.0 feet, The parking area at the boat house floods.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Sunday the stage was 16.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM CDT Sunday was 16.3 feet.
- Forecast...The river is expected to rise to a crest of 16.8 feet
Tuesday morning. It will then fall below flood stage Thursday
afternoon.
- Flood stage is 15.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Louisiana 15.0 16.3 16.8 16.8 15.9 13.8 12.4
&&
LAT...LON 3946 9110 3953 9099 3946 9088 3939 9097
3941 9100 3939 9103
$$
ILC077-157-MOC157-186-161315-
/O.EXT.KLSX.FL.W.0088.260615T0800Z-260622T0036Z/
/CHSI2.1.ER.260615T0800Z.260618T1800Z.260620T1836Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO SUNDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...From late tonight to Sunday evening.
* IMPACTS...At 28.0 feet, Unleveed islands near Chester and the
prison farm floods.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Sunday the stage was 26.7 feet.
- Forecast...The river is expected to rise above flood stage late
tonight to a crest of 29.2 feet early Thursday afternoon. It will
then fall below flood stage early Saturday afternoon.
- Flood stage is 27.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Chester 27.0 26.7 28.1 28.7 29.1 29.2 27.9
&&
LAT...LON 3799 8992 3790 8977 3786 8973 3776 8945
3769 8941 3769 8959 3786 8995 3795 9005
$$
ILC149-MOC173-161315-
/O.EXT.KLSX.FL.W.0089.260615T1800Z-260619T0400Z/
/SVRM7.1.ER.260615T1800Z.260617T0000Z.260617T2200Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT FROM MONDAY AFTERNOON TO THURSDAY
EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Saverton.
* WHEN...From Monday afternoon to Thursday evening.
* 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 AM CDT Sunday the stage was 15.6 feet.
- Forecast...The river is expected to rise above flood stage early
tomorrow afternoon to a crest of 16.4 feet Tuesday evening. It
will then fall below flood stage Wednesday afternoon.
- Flood stage is 16.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Saverton 16.0 15.6 16.2 16.3 15.0 12.7 11.0
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
ILC013-MOC113-161315-
/O.EXT.KLSX.FL.W.0090.260616T0000Z-260620T1200Z/
/CAGM7.1.ER.260616T0000Z.260617T1800Z.260619T0600Z.NO/
814 PM CDT Sun Jun 14 2026
...FLOOD WARNING NOW IN EFFECT FROM MONDAY EVENING TO SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Winfield.
* WHEN...From Monday evening to Saturday morning.
* IMPACTS...At 27.5 feet, At this stage, Lock and Dam 25 will
stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet
of polyethylene plastic as a precaution.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Sunday the stage was 25.5 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 26.8 feet early Wednesday
afternoon. It will then fall below flood stage early Friday
morning.
- Flood stage is 26.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Winfield 26.0 25.5 26.4 26.7 26.7 25.6 22.2
&&
LAT...LON 3925 9083 3925 9071 3912 9065 3896 9065
3888 9057 3880 9057 3885 9073 3910 9076
$$
MRB231
WGUS83 KLSX 151757
FLSLSX
Flood Statement
National Weather Service St Louis MO
1257 PM CDT Mon Jun 15 2026
...The Flood Warning is cancelled for the following rivers in
Missouri...Illinois...
Mississippi River at Hannibal.
Mississippi River at Saverton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
ILC149-MOC127-151900-
/O.CAN.KLSX.FL.W.0087.000000T0000Z-260615T1757Z/
/HNNM7.1.ER.260613T1950Z.260614T1730Z.260614T2300Z.NO/
1257 PM CDT Mon Jun 15 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Hannibal.
* ADDITIONAL DETAILS...
- At 12:15 PM CDT Monday the stage was 16.8 feet.
- Forecast...The river is expected to stay near a height of 16.8
feet until late Tuesday evening before gradually falling to a
height near 12.0 feet on Sunday.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Hannibal 17.0 16.8 16.7 16.2 15.1 13.6 12.8
&&
LAT...LON 3983 9148 3983 9135 3974 9121 3967 9132
3969 9134 3968 9139 3971 9136
$$
ILC149-MOC173-151900-
/O.CAN.KLSX.FL.W.0089.260615T1800Z-260615T1757Z/
/SVRM7.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1257 PM CDT Mon Jun 15 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Mississippi River at Saverton.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Monday the stage was 15.4 feet.
- Forecast...The river is expected to stay near a height of 15.3
feet until Wednesday afternoon before gradually falling to a
height near 10.0 feet on Sunday.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Mississippi River
Saverton 16.0 15.4 15.3 15.1 13.5 11.3 10.1
&&
LAT...LON 3967 9132 3974 9121 3970 9114 3953 9099
3946 9110 3960 9122
$$
PeineWhat 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 Jun 13, 6:07 AM CDT, 5 hours 34 minutes earlier. Its key messages:
- -There are multiple chances for severe thunderstorms today, though the best chance will be this evening along the cold front. -Cool and dry conditions expected on Sunday and Monday before showers and thunderstorms return to the region Tuesday and beyond.
Area forecast discussion, Jun 13, 6:07 AM CDT, 5 hours 34 minutes before
Area Forecast Discussion...Updated Aviation National Weather Service Saint Louis MO 607 AM CDT Sat Jun 13 2026 .KEY MESSAGES... -There are multiple chances for severe thunderstorms today, though the best chance will be this evening along the cold front. -Cool and dry conditions expected on Sunday and Monday before showers and thunderstorms return to the region Tuesday and beyond. && .SHORT TERM... (Through Late Sunday Afternoon) Issued at 305 AM CDT Sat Jun 13 2026 Today's forecast will have many moving parts with several opportunities for thunderstorms to develop. The best chance for thunderstorms, as well as severe thunderstorms, remains this evening along a cold front. Each chance is outlined below: 1. Morning convection: Showers and a few thunderstorms have formed across eastern Kansas and west-central Missouri this morning, aided by a weak low-level jet and warm air advection. Previous rounds of guidance have shown this convection becoming more widespread, developing into an MCS and pushing east across the forecast area this morning. Confidence has started to decrease in this solution as the latest CAM guidance keeps convection weak and disorganized before it dissipates over the western forecast area this morning. In the absence of a robust MCS cold pool, convection will indeed weaken as it pushes east through the forecast area, outside the influence of the low-level jet. Roughly 500-1500 J/kg of MLCAPE will be available during the mid-morning, with decreasing values east of the Mississippi River. So if an MCS does develop and instability is on the higher end of the spectrum, the system would be able to maintain itself at least to the Mississippi River before starting to diminish. Severe chances are low with the morning convection given all the above caveats, but if an MCS does become rooted in the boundary layer, damaging wind gusts would be the main concern. Any isolated severe thunderstorms will bring a risk for quarter-sized hail. 2. Afternoon warm air advection convection: Warm air advection will continue across the region this afternoon, aided by a low-level jet that will only continue to strengthen through the day. This will promote the development of isolated to small clusters of showers and thunderstorms across the region. Increasing instability to around 1000-2000 J/kg of MLCAPE area wide, depending on how much the morning convection stunts destabilization, plus 30-40 kts of 0-6 km shear will encourage at least a few cells to become severe. Quarter-sized hail and damaging wind gusts are possible with any storms that become severe. While I cannot rule out a tornado at this point, the hodographs are not as favorable as they will be along the front during the evening. 3. Evening convection along cold front: The best chance for severe thunderstorms today will be along a cold front that will drop into the region this evening, with enhanced lift from a mid-level shortwave. Initial development will be isolated supercells across southern Iowa and northwest Missouri where the best instability, shear, and lapse rates will be. As the front and associated convection progress southeast into the forecast area convection is expected to become so widespread that clusters and bowing segments develop, though embedded supercells are still possible. The main threat with any severe thunderstorms during this period will be damaging winds, though quarter-sized hail and a tornado cannot be ruled out within embedded supercells near the front as hodographs become more curved. Instability will wane over the evening and further southeast from the front, though there is uncertainty in how quickly this will happen. Thus, confidence in severe thunderstorm development across southeast Missouri and southern Illinois is lower than over central and northeast Missouri. 4. Flash flood potential Confidence is high that convection will be progressive enough in our forecast area to preclude any widespread flash flood threat. The best chance for any flash flooding would result front multiple thunderstorms moving across the same area through the course of the day. Where this happens, 2-3 inches of rain is possible, with localized amounts up to 5" (via the HREF 24 hour LPMM), though 5" amounts are representative of the worst case scenario. Northeast Missouri is at the greatest risk for flash flooding, all other things being equal, given the very wet antecedent conditions. Over the past 72 hours portions of this area have been between 4-7" of rain (MRMS Multi-Sensor Pass 2), while the remainder of the CWA has seen generally less than 2". Delia && .LONG TERM... (Sunday Night through Friday) Issued at 305 AM CDT Sat Jun 13 2026 In the wake of Saturday's cold front, cold air advection will drop 850 mb temperatures to around 10C by Sunday afternoon. The result will be high temperatures nearly 10 degrees below normal for this time of year, in the 70s. Monday likewise will be cooler than normal for mid June. Starting Tuesday, however, low-level flow will become westerly then southwesterly, advecting warm, moist air back into the region and giving high temperatures a boost. At the same time, mid- level disturbances will propagate through the northwest mid-level flow on the western side of an amplified mid-level trough. This will bring a return of showers and thunderstorms to the region Tuesday. The best chance for showers and thunderstorms will be Wednesday into Thursday ahead of and along a cold front that will push through the forecast area. Uncertainty remains in the details of the timing of the frontal passage, the favorability of the environment, and the subsequent severe chances. Delia && .AVIATION... (For the 12z TAFs through 12z Sunday Morning) Issued at 554 AM CDT Sat Jun 13 2026 Showers and thunderstorms are blooming across central Missouri this morning and are expected to dissipate within a few hours. They are already impacting the mid-Missouri terminals (KJEF, KCOU), where brief reductions in visibility to MVFR flight conditions are possible. Confidence is low in if this round of showers and thunderstorms will impact the St. Louis metro terminals (KSTL, KCPS, KSUS). Additional showers and thunderstorms are possible this afternoon across the area, though confidence is low in where these will form. The best chance for showers and thunderstorms at all terminals today will be this evening as thunderstorms form along a cold front and move southeast through the region. MVFR to IFR visibilities are expected underneath any thunderstorms, and MVFR stratus is expected to trail the front for a few hours before dry air erodes this layer. Southerly winds will become variable during the afternoon ahead of the front, and eventually northwesterly behind the front. Delia && .LSX WATCHES/WARNINGS/ADVISORIES... MO...None. IL...None. && WFO LSX
In the hours before
Local storm report, Jun 13, 11:26 AM CDT, 15 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
1126 AM CDT Sat Jun 13 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0903 PM Tstm Wnd Dmg 2 NNW Mount Olive 39.10N 89.75W
06/11/2026 Macoupin IL Broadcast Media
Pictures from Facebook were shared by local
media of large trees down damaging buildings
in Lake Ka-ho. Time is estimated.
&&The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 9:36 PM CDT | River Flood Warning | LSX | Pike | 7 days |
| Jun 12, 9:37 PM CDT | River Flood Warning | LSX | Calhoun | 7 days |
| Jun 13, 9:20 AM CDT | Areal Flood Advisory | LSX | Adams | 2 hr |
| Jun 13, 10:22 AM CDT | Areal Flood Advisory | LSX | Brown, Pike | 3 hr |
| Jun 13, 11:43 AM CDT | River Flood Warning | LSX | Jackson, Randolph | 21 days |
| Jun 13, 2:18 PM CDT | Areal Flood Advisory | LSX | Adams | 3 hr |
| Jun 12, 9:14 PM CDT | River Flood Warning | LSX | Callaway, Osage | 5 days |
| Jun 13, 6:38 AM CDT | River Flood Warning | LSX | Monroe | 53 hr |
| Jun 13, 9:26 AM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 5 days |
| Jun 13, 1:48 PM CDT | Areal Flood Advisory | LSX | Lewis | 3 hr |
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.