Alert archive / Missouri / River Flood Warnings in 2022

River Flood Warning 53, NWS St. Louis, MO

May 5, 2022Callaway County, Osage County, Missouri

NWS St. Louis, MO issued this river flood warning at May 5, 2022, 10:11 AM CDT for Callaway County, Osage County, Missouri. It took effect at May 5, 2022, 2:40 PM CDT. It was in force for 3 days.

The area

The outline as issued.

The facts

Issued: May 5, 2022, 10:11 AM CDT (15:11 UTC)
In effect from: May 5, 2022, 2:40 PM CDT
Expired: May 9, 2022, 1:00 AM CDT
In force: 3 days
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Callaway County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 100 km from the middle of the area, began a volume at 15:11 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 Missouri River near Chamois (CMSM7).

Action stage: 15 ft
Minor stage: 17 ft
Moderate stage: 28 ft
Major stage: 31 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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.

043 
WGUS43 KLSX 051511
FLWLSX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
1011 AM CDT Thu May 5 2022

...The National Weather Service in St Louis MO has issued a Flood 
Warning for the following rivers in Missouri...

  Missouri River near Chamois.

  Missouri River at Hermann.

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.

Rainfall heavier than forecast could cause river levels to rise even 
higher than predicted. The National Weather Service will monitor 
this developing situation and issue follow up statements as 
conditions change.

This product, along with additional weather and stream information, 
is available at https://water.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC027-151-070315-
/O.NEW.KLSX.FL.W.0053.220505T1940Z-220509T0600Z/
/CMSM7.1.ER.220505T1940Z.220506T1200Z.220507T1800Z.NO/
1011 AM CDT Thu May 5 2022

...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO EARLY MONDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Missouri River near Chamois.

* WHEN...From this afternoon to early Monday morning.

* IMPACTS...At 17.0 feet, Flood Stage:  Lower lying bottom land 
  begins to flood.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Thursday, May 05 the stage was estimated to be
    14.5 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 20.0 feet tomorrow morning. It
    will then fall below flood stage early Saturday afternoon.
  - Flood stage is 17.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Fri   Sat   Sun   Mon   Tue

Missouri River
  Chamois       17.0    13.6    19.7  17.0  14.6  14.0  MSG


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

MOC073-139-070315-
/O.NEW.KLSX.FL.W.0054.220505T2120Z-220511T1424Z/
/HRNM7.1.ER.220505T2120Z.220506T1800Z.220510T0824Z.NO/
1011 AM CDT Thu May 5 2022

...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO LATE WEDNESDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Missouri River at Hermann.

* WHEN...From this afternoon to late Wednesday morning.

* IMPACTS...At 25.0 feet, City Lions Club Athletic Field begins to 
  flood.

* ADDITIONAL DETAILS...
  - At 9:30 AM CDT Thursday the stage was 19.9 feet.
  - Forecast...The river will rise above flood stage late this
    afternoon to 25.0 feet early tomorrow afternoon. It will then
    fall to 22.6 feet and begin rising again Sunday morning. It
    will rise to 23.1 feet early Monday morning. It will then
    fall below flood stage early Tuesday morning.
  - Flood stage is 21.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Fri   Sat   Sun   Mon   Tue

Missouri River
  Hermann       21.0    19.9    25.0  23.3  22.7  22.7  19.4


&&

LAT...LON 3873 9161 3875 9136 3866 9119 3861 9123
      3866 9139 3866 9161


$$

Elmore

5 follow-up statements

659 
WGUS83 KLSX 060223
FLSLSX

Flood Statement
National Weather Service St Louis MO
923 PM CDT Thu May 5 2022

...The Flood Warning is extended for the following rivers in 
Missouri...

  Missouri River at Washington.

  Missouri River near Chamois.

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.

Rainfall heavier than forecast could cause river levels to rise even 
higher than predicted. The National Weather Service will monitor 
this developing situation and issue follow up statements as 
conditions change.

This product, along with additional weather and stream information, 
is available at https://water.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC071-219-071430-
/O.EXT.KLSX.FL.W.0060.220506T0223Z-220510T0000Z/
/WHGM7.1.ER.220505T2251Z.220507T0000Z.220508T1200Z.NO/
923 PM CDT Thu May 5 2022

...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO MONDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Washington.

* WHEN...From this evening to Monday evening.

* IMPACTS...At 23.5 feet, Riverfront Trail 2.25 miles east of the 
  last bench in the woods floods.

* ADDITIONAL DETAILS...
  - At 8:45 PM CDT Thursday the stage was 20.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:45 PM CDT Thursday was 20.8 feet.
  - Forecast...The river is expected to rise to a crest of 22.7
    feet tomorrow evening. It will then fall below flood stage
    Sunday morning.
  - Flood stage is 20.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Fri   Sat   Sun   Mon   Tue

Missouri River
  Washington    20.0    20.8    22.7  21.1  19.4  18.5  15.8


&&

LAT...LON 3865 9078 3859 9072 3851 9089 3861 9123
      3866 9119


$$

MOC027-151-071430-
/O.EXT.KLSX.FL.W.0053.000000T0000Z-220509T1100Z/
/CMSM7.1.ER.220505T1836Z.220506T1800Z.220507T2300Z.NO/
923 PM CDT Thu May 5 2022

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Missouri River near Chamois.

* WHEN...Until Monday morning.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Thursday the stage was 15.2 feet.
  - Forecast...The river is expected to rise to a crest of 21.0
    feet early tomorrow afternoon. It will then fall below flood
    stage Saturday evening.
  - Flood stage is 17.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Fri   Sat   Sun   Mon   Tue

Missouri River
  Chamois       17.0    15.2    20.4  16.9  14.9  13.2  11.6


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

Glass

505 
WGUS83 KLSX 061536
FLSLSX

Flood Statement
National Weather Service St Louis MO
1036 AM CDT Fri May 6 2022

...The Flood Warning is extended for the following rivers in 
Missouri...

  Missouri River at Hermann.

...The Flood Warning continues for the following rivers in 
Missouri...

  Missouri River at St. Charles.

  Missouri River at Washington.

  Missouri River near Chamois.

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.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC183-189-080345-
/O.EXT.KLSX.FL.W.0070.000000T0000Z-220509T1342Z/
/SCLM7.1.ER.220506T0536Z.220507T0000Z.220508T0742Z.NO/
1036 AM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at St. Charles.

* WHEN...Until Monday morning.

* IMPACTS...At 27.0 feet, The Katy Trail begins flooding near this 
  height along Hawning Road, about 2 miles north northeast of the 
  Highway 370 bridge.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Friday the stage was 26.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:00 AM CDT Friday was 26.6 feet.
  - Forecast...The river is expected to rise to a crest of 26.7
    feet this evening. It will then fall below flood stage early
    Sunday morning.
  - Flood stage is 25.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  St. Charles   25.0    26.6    26.3  23.9  22.9  22.4  MSG


&&

LAT...LON 3891 9033 3886 9018 3881 9017 3859 9072
      3865 9078


$$

MOC071-219-080345-
/O.EXT.KLSX.FL.W.0060.000000T0000Z-220509T1245Z/
/WHGM7.1.ER.220505T2251Z.220506T1315Z.220508T0045Z.NO/
1036 AM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Washington.

* WHEN...Until Monday morning.

* IMPACTS...At 21.0 feet, Wastewater plant turns pumps on.

* ADDITIONAL DETAILS...
  - At 9:45 AM CDT Friday the stage was 21.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:45 AM CDT Friday was 21.8 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow evening and continue falling to 14.7 feet Wednesday
    morning.
  - Flood stage is 20.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Washington    20.0    21.8    20.8  18.2  17.9  16.7  MSG


&&

LAT...LON 3865 9078 3859 9072 3851 9089 3861 9123
      3866 9119


$$

MOC073-139-080345-
/O.EXT.KLSX.FL.W.0054.000000T0000Z-220511T0300Z/
/HRNM7.1.ER.220505T1641Z.220506T1400Z.220509T2100Z.NO/
1036 AM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TUESDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Hermann.

* WHEN...Until late Tuesday evening.

* IMPACTS...At 25.0 feet, City Lions Club Athletic Field begins to 
  flood.

* ADDITIONAL DETAILS...
  - At 9:30 AM CDT Friday the stage was 24.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:30 AM CDT Friday was 24.5 feet.
  - Forecast...The river is expected to fall below flood stage
    Monday afternoon and continue falling to 13.0 feet Friday
    morning.
  - Flood stage is 21.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Hermann       21.0    24.4    23.0  21.2  21.2  19.3  16.3


&&

LAT...LON 3873 9161 3875 9136 3866 9119 3861 9123
      3866 9139 3866 9161


$$

MOC027-151-080345-
/O.EXT.KLSX.FL.W.0053.000000T0000Z-220508T1700Z/
/CMSM7.1.ER.220505T1836Z.220506T1200Z.220507T0500Z.NO/
1036 AM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SUNDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River near Chamois.

* WHEN...Until early Sunday afternoon.

* IMPACTS...At 17.0 feet, Flood Stage:  Lower lying bottom land 
  begins to flood.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Friday the stage was 18.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 AM CDT Friday was 18.5 feet.
  - Forecast...The river is expected to fall below flood stage
    just after midnight tonight and continue falling to 10.2 feet
    Wednesday morning.
  - Flood stage is 17.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Chamois       17.0    18.5    15.9  13.9  12.8  11.4  MSG


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

Fuchs

805 
WGUS83 KLSX 062116
FLSLSX

Flood Statement
National Weather Service St Louis MO
416 PM CDT Fri May 6 2022

...The Flood Warning is extended for the following rivers in 
Missouri...

  Missouri River near Chamois.

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.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC027-151-080930-
/O.EXT.KLSX.FL.W.0053.000000T0000Z-220509T1100Z/
/CMSM7.1.ER.220505T1836Z.220507T0000Z.220507T2300Z.NO/
416 PM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River near Chamois.

* WHEN...Until Monday morning.

* IMPACTS...At 17.0 feet, Flood Stage:  Lower lying bottom land 
  begins to flood.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Friday the stage was 18.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 AM CDT Friday was 18.5 feet.
  - Forecast...The river is expected to rise to a crest of 18.8
    feet this evening. It will then fall below flood stage
    tomorrow evening.
  - Flood stage is 17.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Chamois       17.0    18.5    16.9  14.7  12.7  11.2  MSG


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

Glass

996 
WGUS83 KLSX 070130
FLSLSX

Flood Statement
National Weather Service St Louis MO
830 PM CDT Fri May 6 2022

...The Flood Warning continues for the following rivers in 
Missouri...

  Missouri River at St. Charles.

  Missouri River at Washington.

  Missouri River at Hermann.

  Missouri River near Chamois.

  Osage River near Mari-Osa Campground.

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.

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.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC183-189-081330-
/O.EXT.KLSX.FL.W.0070.000000T0000Z-220509T0500Z/
/SCLM7.1.ER.220506T0536Z.220506T2230Z.220507T2300Z.NO/
830 PM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at St. Charles.

* WHEN...Until early Monday morning.

* IMPACTS...At 27.0 feet, The Katy Trail begins flooding near this 
  height along Hawning Road, about 2 miles north northeast of the 
  Highway 370 bridge.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Friday the stage was 26.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 PM CDT Friday was 26.8 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow evening and continue falling to 20.8 feet Wednesday
    evening.
  - Flood stage is 25.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  St. Charles   25.0    26.8    24.9  22.6  22.2  22.1  20.8


&&

LAT...LON 3891 9033 3886 9018 3881 9017 3859 9072
      3865 9078


$$

MOC071-219-081330-
/O.EXT.KLSX.FL.W.0060.000000T0000Z-220509T0325Z/
/WHGM7.1.ER.220505T2251Z.220506T1500Z.220507T1525Z.NO/
830 PM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL LATE SUNDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Washington.

* WHEN...Until late Sunday evening.

* IMPACTS...At 21.0 feet, Wastewater plant turns pumps on.

* ADDITIONAL DETAILS...
  - At 7:45 PM CDT Friday the stage was 21.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:45 PM CDT Friday was 21.8 feet.
  - Forecast...The river is expected to fall below flood stage
    late tomorrow morning and continue falling to 13.7 feet
    Wednesday evening.
  - Flood stage is 20.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Washington    20.0    21.4    19.0  16.9  16.9  16.4  13.7


&&

LAT...LON 3865 9078 3859 9072 3851 9089 3861 9123
      3866 9119


$$

MOC073-139-081330-
/O.EXT.KLSX.FL.W.0054.000000T0000Z-220509T0900Z/
/HRNM7.1.ER.220505T1641Z.220506T1400Z.220508T0300Z.NO/
830 PM CDT Fri May 6 2022

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Hermann.

* WHEN...Until early Monday morning.

* IMPACTS...At 25.0 feet, City Lions Club Athletic Field begins to 
  flood.

* ADDITIONAL DETAILS...
  - At 7:30 PM CDT Friday the stage was 23.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:30 PM CDT Friday was 24.5 feet.
  - Forecast...The river is expected to fall below flood stage
    late tomorrow evening and continue falling to 12.8 feet
    Friday evening.
  - Flood stage is 21.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Hermann       21.0    23.7    21.3  19.9  20.4  19.1  16.1


&&

LAT...LON 3873 9161 3875 9136 3866 9119 3861 9123
      3866 9139 3866 9161


$$

MOC027-151-081330-
/O.CON.KLSX.FL.W.0053.000000T0000Z-220509T1100Z/
/CMSM7.1.ER.220505T1836Z.220507T0600Z.220507T2300Z.NO/
830 PM CDT Fri May 6 2022

...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River near Chamois.

* WHEN...Until Monday morning.

* IMPACTS...At 17.0 feet, Flood Stage:  Lower lying bottom land 
  begins to flood.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Friday the stage was 18.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 AM CDT Friday was 18.5 feet.
  - Forecast...The river is expected to rise to a crest of 18.6
    feet just after midnight tonight. It will then fall below
    flood stage tomorrow evening.
  - Flood stage is 17.0 feet.


&&

                Fld   Observed  Forecasts (7 pm CDT)
Location        Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Missouri River
  Chamois       17.0    18.5    16.9  14.7  12.6  11.0  9.6


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

MOC051-151-081330-
/O.CON.KLSX.FL.W.0052.000000T0000Z-220509T0300Z/
/MOAM7.1.ER.220505T1700Z.220506T1700Z.220507T2100Z.UU/
830 PM CDT Fri May 6 2022

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE SUNDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Osage River near Mari-Osa Campground.

* WHEN...Until late Sunday evening.

* IMPACTS...At 20.0 feet, Near this stage the lowest two campsites 
  at Mari-Osa campground begin flooding.

* ADDITIONAL DETAILS...
  - At 12:00 PM CDT Friday the stage was 20.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 12:00 PM CDT Friday was 20.5 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow afternoon and continue falling to 12.5 feet
    Wednesday evening.
  - Flood stage is 19.0 feet.


&&

                       Fld   Observed  Forecasts (7 pm CDT)
Location               Stg   Stg 7 pm  Sat   Sun   Mon   Tue   Wed

Osage River
  Mari-Osa Campground  19.0    20.5    18.7  16.6  14.7  13.5  12.5


&&

LAT...LON 3849 9199 3849 9202 3847 9202 3853 9204
      3853 9202


$$

Glass

365 
WGUS83 KLSX 071549
FLSLSX

Flood Statement
National Weather Service St Louis MO
1049 AM CDT Sat May 7 2022

...The Flood Warning is extended for the following rivers in 
Missouri...

  Missouri River at Hermann.

...The Flood Warning is cancelled for the following rivers in 
Missouri...

  Missouri River near Chamois.

...The Flood Warning continues for the following rivers in 
Missouri...

  Missouri River at Washington.

  Missouri River at St. Charles.

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.weather.gov/ahps2/index.php?wfo=lsx.

&&

MOC027-151-071700-
/O.CAN.KLSX.FL.W.0053.000000T0000Z-220507T1549Z/
/CMSM7.1.ER.220505T1836Z.220506T1200Z.220507T0224Z.NO/
1049 AM CDT Sat May 7 2022

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Missouri River near Chamois.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Saturday the stage was 16.0 feet.
  - Forecast...The river is expected to fall to 8.9 feet Thursday
    morning.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sun   Mon   Tue   Wed   Thu

Missouri River
  Chamois       17.0    16.0    13.4  10.8  11.3  10.0  MSG


&&

LAT...LON 3864 9198 3871 9185 3873 9161 3866 9161
      3865 9190 3858 9194


$$

MOC071-219-090315-
/O.EXT.KLSX.FL.W.0060.000000T0000Z-220509T0312Z/
/WHGM7.N.ER.220505T2251Z.220506T1500Z.220507T1512Z.NO/
1049 AM CDT Sat May 7 2022

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING...

* WHAT...Minor flooding is occurring.

* WHERE...Missouri River at Washington.

* WHEN...Until late tomorrow evening.

* IMPACTS...At 21.0 feet, Wastewater plant turns pumps on.

* ADDITIONAL DETAILS...
  - At 9:45 AM CDT Saturday the stage was 20.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:45 AM CDT Saturday was 21.7 feet.
  - Forecast...The river is expected to fall to 11.4 feet
    Thursday morning.
  - Flood stage is 20.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sun   Mon   Tue   Wed   Thu

Missouri River
  Washington    20.0    20.1    17.6  16.4  15.1  13.0  MSG


&&

LAT...LON 3865 9078 3859 9072 3851 9089 3861 9123
      3866 9119


$$

MOC073-139-090400-
/O.EXT.KLSX.FL.W.0054.000000T0000Z-220509T1400Z/
/HRNM7.1.ER.220505T1641Z.220506T1400Z.220508T0800Z.NO/
1049 AM CDT Sat May 7 2022

...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at Hermann.

* WHEN...Until late Monday morning.

* IMPACTS...At 22.3 feet, Southern portions of Old Rock Road and 
  Twisters Road south of Rhineland begin flooding near this height.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Saturday the stage was 22.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:30 AM CDT Saturday was 24.3 feet.
  - Forecast...The river is expected to fall below flood stage
    late tonight and continue falling to 12.0 feet Saturday
    morning.
  - Flood stage is 21.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sun   Mon   Tue   Wed   Thu

Missouri River
  Hermann       21.0    22.4    20.6  19.1  17.9  15.5  13.6


&&

LAT...LON 3873 9161 3875 9136 3866 9119 3861 9123
      3866 9139 3866 9161


$$

MOC183-189-090400-
/O.CON.KLSX.FL.W.0070.000000T0000Z-220509T0500Z/
/SCLM7.1.ER.220506T0536Z.220506T2230Z.220507T2300Z.NO/
1049 AM CDT Sat May 7 2022

...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Missouri River at St. Charles.

* WHEN...Until early Monday morning.

* IMPACTS...At 25.0 feet, The right bank downstream overflows, 
  flooding agricultural bottomland.  Near this stage, Missouri Route 
  H at Island Road will be closed in both directions.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Saturday the stage was 25.9 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:30 AM CDT Saturday was 26.8 feet.
  - Forecast...The river is expected to fall below flood stage
    this evening and continue falling to 19.0 feet Thursday
    morning.
  - Flood stage is 25.0 feet.


&&

                Fld   Observed  Forecasts (1 pm CDT)
Location        Stg   Stg 1 pm  Sun   Mon   Tue   Wed   Thu

Missouri River
  St. Charles   25.0    25.9    23.2  22.2  21.3  20.1  MSG


&&

LAT...LON 3891 9033 3886 9018 3881 9017 3859 9072
      3865 9078


$$

Maples

What 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 May 5, 6:33 AM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, May 5, 6:33 AM CDT, 3 hours 38 minutes before

Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
633 AM CDT Thu May 5 2022

.SHORT TERM...  (Through Late Friday Afternoon)
Issued at 314 AM CDT Thu May 5 2022

Through the morning showers and thunderstorms are expected to shift
eastward and weaken as the low-level jet and mid-level shortwave
shift eastward out of the forecast area. The warm front associated
with the approaching surface low will be moving northward during the
morning through southern Missouri, bringing slightly unstable air to
the far southern forecast area. As the low-level jet shifts eastward
into southeastern Missouri, the overlap of lift from the jet and the
warm front could be enough to generate a strong thunderstorm,
organized by the 50-55 kts of 0-6 km shear across this region.
Damaging winds will be the primary concern for any thunderstorms
that become strong to severe this morning.

A lull in precipitation is expected across most of the region this
afternoon through the evening hours in the wake of the shortwave.
During the day the mid-level trough will push eastward, mirrored at
the surface by the advance of the low. As the warm front continues
it's march northward, some instability is expected to build across
the southern half of the forecast area. The amount of instability
that will be able to build into the area is uncertain, ongoing
convection across southern Missouri and northern Arkansas may cut
the region off from quality instability and moisture. SREF guidance
is indicating 60-65 degree dewpoints and up to 500 J/kg of MUCAPE to
areas south of the I-70 corridor. The low will track across the
forecast area overnight Thursday into Friday, bringing showers and a
few thunderstorms back to the region. The scarce instability is the
limiting factor in thunderstorms becoming strong to severe, but I
cannot rule out a thunderstorm organizing in the 40-45 kts of 0-6 km
shear and minor instability across far southeast Missouri overnight
Thursday into Friday. Damaging winds will once again be the primary
hazard with any storms that become strong to severe.

Concerns for flooding remain low across the forecast area given the
breaks in precipitation expected, as well as the overall lack of
robust thunderstorm activity to provide long duration heavy
rainfall. Even so, if a few thunderstorms become strong to severe,
localized ponding and small stream flooding is possible across
isolated areas. The 1.00-1.50 inches of additional rain expected
from this system on top of relatively saturated soils will increase
the probability of minor flooding along some of the mainstem rivers
over the next couple of days.

The surface low will push out of the forecast area Friday morning,
though showers will linger across the area behind the low through
most of the day. Multiple chances of rain, heavy cloud cover, and
the position of the low track will help to keep temperatures
seasonally cool both today and tomorrow. Those of us who enjoy the
60 degree range should savor it, as a major pattern shift will take
place over the weekend.

MRM

.LONG TERM...  (Friday Night through Wednesday)
Issued at 314 AM CDT Thu May 5 2022

Rising heights aloft Friday evening in the wake of the departing mid-
level trough and the advance of a surface high into the region will
help clear precipitation out of the area during the evening and
overnight period Friday. The surface high will keep conditions dry
and cool on Saturday. Over the weekend a 500mb ridge will begin to
build into the mid-Mississippi Valley while across the western CONUS
a large trough will deepen. The resulting robust southwesterly flow
over the mid-Mississippi Valley will extend into the low-levels as
well as the surface high shifts east of the region, increasing warm
air advection into the region. By Sunday, temperatures will be near
to above normal for early May.

Southwesterly flow will continue in the low to mid-levels during the
first half of the work week, increasing warm air advection
dramatically, and pushing 850 mb temperatures into the low to mid
20s. These temperatures are near the climatological maximum for
this time of year, and will launch surface temperatures 20 degrees
above normal. High temperatures Monday through Wednesday have the
potential to break daily records (see Climate section below),
with highs pushing 90 across the region.

While shortwave disturbances will be able to slide into the mid-
Mississippi Valley along the southwesterly flow during the extended
period, the forecast area will be along the southeastern edge of the
500 jet. This will effectively keep showers and thunderstorms to the
north and west of the region, and the WPC cluster analysis is
indicating that the forecast area will remain dry at least through
Tuesday.

MRM

&&

.AVIATION...  (For the 12z TAFs through 12z Friday Morning)
Issued at 627 AM CDT Thu May 5 2022

Rain and IFR conditions will continue at most terminals through
the morning. Sites that currently have VFR ceilings are expected
to drop to MVFR/IFR flight conditions over the course of the
morning. Rain will move out of the area during the afternoon, and
conditions will stay dry through a portion of the evening.
Visibilities will improve as rain moves out of individual
terminals but ceilings will stay IFR through the dry period.
Showers and perhaps a few thunderstorms will return to the region
overnight, any showers that move through individual terminals will
have the ability to reduce visibilities.

Winds will be largely southeast to easterly through the period,
near 10 kts.

MRM

&&

.CLIMATE...
Issued at 314 AM CDT Thu May 5 2022

Record highs for Monday, May 9

STL 92 (1934)
COU 91 (1895)
UIN 90 (1963)

Record highs for Tuesday, May 10

STL 91 (1963)
COU 91 (1928)
UIN 92 (2011)

Record highs for Wednesday, May 11

STL 91 (2011)
COU 90 (1914)
UIN 88 (2000)

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...None.
IL...None.
&&

WFO LSX

Hazardous weather outlook, May 5, 3:32 AM CDT, 6 hours 39 minutes before

Hazardous Weather Outlook
National Weather Service Saint Louis MO
332 AM CDT Thu May 5 2022

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-060845-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
332 AM CDT Thu May 5 2022

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Today and tonight.

Thunderstorms are possible across the area this morning and
overnight. One or two storms may become strong to severe this morning
and again overnight across southeastern Missouri.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms are possible Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

MRM

In the hours before

Local storm report, May 5, 8:25 AM CDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
825 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0819 AM     HEAVY RAIN       WASHINGTON              38.55N 91.00W
05/05/2022  E2.50 INCH       FRANKLIN           MO   PUBLIC

            STORM TOTAL RAINFALL - SUBMITTED VIA TWITTER
            WITH PICTURE OF RAIN GAUGE INCLUDED.

&&

LSJ

Local storm report, May 5, 8:57 AM CDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
857 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0854 AM     HEAVY RAIN       CUBA                    38.06N 91.40W
05/05/2022  E2.20 INCH       CRAWFORD           MO   EMERGENCY MNGR

            STORM TOTAL RAINFALL MEASURED VIA AIRPORT
            WEATHER STATION.

&&

LSJ

Local storm report, May 5, 9:31 AM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
931 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0910 AM     HEAVY RAIN       1 SSE SAINT PAUL        38.84N 90.73W
05/05/2022  M1.92 INCH       ST. CHARLES        MO   TRAINED SPOTTER

            STORM TOTAL MEASURED VIA GAUGE.

&&

MRB

Local storm report, May 5, 9:32 AM CDT, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
932 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0902 AM     HEAVY RAIN       5 WSW KNOB LICK         37.66N 90.47W
05/05/2022  E1.38 INCH       ST. FRANCOIS       MO   PUBLIC

            STORM TOTAL.

&&

MRB

Local storm report, May 5, 9:38 AM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
938 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0938 AM     HEAVY RAIN       CRESTWOOD               38.56N 90.38W
05/05/2022  M2.01 INCH       ST. LOUIS          MO   TRAINED SPOTTER

            STORM TOTAL SINCE WEDNESDAY NIGHT.

&&

MRB

Local storm report, May 5, 9:56 AM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
956 AM CDT THU MAY 5 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0947 AM     HEAVY RAIN       2 WNW SWANSEA           38.55N 90.02W
05/05/2022  M1.85 INCH       ST. CLAIR          IL   PUBLIC

            STORM TOTAL.

&&

MRB

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 5, 5:22 AM CDT	River Flood Warning	LSX	Osage	42 hr
May 5, 5:37 AM CDT	Areal Flood Advisory	LSX	Boone, Callaway, Cole, Moniteau, Osage	3 hr
May 5, 6:00 AM CDT	Areal Flood Advisory	LSX	Crawford, Franklin, Gasconade	3 hr
May 5, 7:46 AM CDT	River Flood Warning	LSX	Cole	46 hr
May 5, 9:59 AM CDT	River Flood Warning	LSX	Cole, Osage	50 hr
May 5, 10:11 AM CDT	River Flood Warning	LSX	Gasconade, Montgomery	67 hr
May 5, 10:20 AM CDT	River Flood Warning	LSX	Crawford, Washington	65 hr
May 5, 11:13 AM CDT	River Flood Warning	LSX	Lincoln	6 days
May 5, 11:57 AM CDT	River Flood Warning	LSX	Saint Charles	20 hr
May 5, 1:22 PM CDT	River Flood Warning	LSX	Lincoln	25 hr
May 5, 2:27 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	6 days
May 5, 2:57 PM CDT	River Flood Warning	LSX	Franklin, Warren	50 hr
May 5, 2:57 PM CDT	River Flood Warning	LSX	Franklin	3 days
May 5, 2:57 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	6 days
May 5, 2:57 PM CDT	River Flood Warning	LSX	Franklin, Jefferson	4 days
May 5, 4:51 PM CDT	River Flood Warning	LSX	Saint Charles	5 days
May 5, 4:51 PM CDT	River Flood Warning	LSX	Saint Charles	6 days
May 5, 6:50 PM CDT	River Flood Warning	LSX	Reynolds	39 hr

Nearby

River Flood Warnings in Missouri, 2022 Every river flood warning in 2022

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.