Alert archive / Missouri / River Flood Warnings in 2021

River Flood Warning 16, NWS St. Louis, MO

March 12, 2021Crawford County, Washington County, Missouri

NWS St. Louis, MO issued this river flood warning at Mar 12, 2021, 9:56 AM CST for Crawford County, Washington County, Missouri. It took effect at Mar 12, 2021, 3:21 PM CST. It was in force for 59 hr.

The area

The outline as issued.

The facts

Issued: Mar 12, 2021, 9:56 AM CST (15:56 UTC)
In effect from: Mar 12, 2021, 3:21 PM CST
Expired: Mar 15, 2021, 3:49 AM CDT
In force: 59 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Crawford County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 66 km from the middle of the area, began a volume at 15:58 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 Meramec River near Sullivan (SLLM7). The gauge peaked at 14.76 ft at Mar 13, 2021, 11:00 PM CST.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 20 ft
Major stage: 29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07014500, 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.

081 
WGUS43 KLSX 121556
FLWLSX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
956 AM CST Fri Mar 12 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.

  

&&


MOC055-221-140400-
/O.NEW.KLSX.FL.W.0016.210312T2121Z-210317T1339Z/
/SLLM7.1.ER.210312T2121Z.210314T1200Z.210316T0738Z.NO/
956 AM CST Fri Mar 12 2021

The National Weather Service in St Louis has issued a

* Flood Warning for
  the Meramec River near Sullivan.
* From this afternoon to Wednesday morning.
* At 9:30 AM CST Friday the stage was 9.1 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 17.0 feet Sunday morning. It will 
  then fall below flood stage early Tuesday morning.
* Impact...At 17.0 feet, At this height the entire Arapaho 
  campground will be under water.

&&


             Fld   Observed        Forecasts (12 pm CST)
Location     Stg   Stg   Day/Time  Sat   Sun   Mon   Tue   Wed

Meramec River
Sullivan     11.0  9.1   Fri 9 am  15.6  16.6  13.4  9.4   7.4





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

TES

6 follow-up statements

828 
WGUS83 KLSX 130228
FLSLSX

Flood Statement
National Weather Service St Louis MO
828 PM CST Fri Mar 12 2021

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

  Meramec River near Sullivan.

  Meramec River near Steelville.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.

  

&&


MOC055-221-141430-
/O.EXT.KLSX.FL.W.0016.000000T0000Z-210317T0508Z/
/SLLM7.1.ER.210312T2023Z.210314T0000Z.210315T2308Z.NO/
828 PM CST Fri Mar 12 2021

...The Flood Warning is now in effect until early Wednesday 
morning...

The Flood Warning continues for
  the Meramec River near Sullivan.
* Until late Tuesday night.
* At 8:00 PM CST Friday the stage was 13.0 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:00 PM CST Friday was 13.0 feet.
* Forecast...The river is expected to rise to a crest of 16.4 feet 
  tomorrow evening. It will then fall below flood stage Monday 
  evening.
* Impact...At 17.0 feet, At this height the entire Arapaho 
  campground will be under water.

&&


             Fld   Observed        Forecasts (6 pm CST)
Location     Stg   Stg   Day/Time  Sat   Sun   Mon   Tue   Wed

Meramec River
Sullivan     11.0  13.0  Fri 8 pm  16.4  14.6  10.9  8.7   7.3





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

MOC055-141430-
/O.EXT.KLSX.FL.W.0017.210313T1612Z-210315T2230Z/
/SEEM7.1.ER.210313T1612Z.210314T0000Z.210314T1630Z.NO/
828 PM CST Fri Mar 12 2021

...The Flood Warning is now in effect until Monday afternoon...

The Flood Warning continues for
  the Meramec River near Steelville.
* From Saturday morning to Monday afternoon.
* At 8:00 PM CST Friday the stage was 9.9 feet.
* Flood stage is 12.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tomorrow morning to a crest of 12.7 feet tomorrow evening. It will 
  then fall below flood stage late Sunday morning.
* Impact...At 12.5 feet, The entrance gate to the campground at 
  Onondaga Cave State Park off Highway H begins to flood near this 
  height.

&&


             Fld   Observed        Forecasts (6 pm CST)
Location     Stg   Stg   Day/Time  Sat   Sun   Mon   Tue   Wed

Meramec River
Steelville   12.0  9.9   Fri 8 pm  12.7  11.0  7.5   5.7   4.6





&&

LAT...LON 3793 9152 3800 9152 3806 9125 3801 9121

$$

Glass

520 
WGUS83 KLSX 131510
FLSLSX

Flood Statement
National Weather Service St Louis MO
910 AM CST Sat Mar 13 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.

  

&&


MOC055-221-150315-
/O.EXT.KLSX.FL.W.0016.000000T0000Z-210318T2120Z/
/SLLM7.1.ER.210312T2023Z.210314T0600Z.210317T1520Z.NO/
910 AM CST Sat Mar 13 2021

...The Flood Warning is now in effect until Thursday afternoon...

The Flood Warning continues for
  the Meramec River near Sullivan.
* Until Thursday afternoon.
* At 8:30 AM CST Saturday the stage was 14.4 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 AM CST Saturday was 14.5 feet.
* Forecast...The river will rise to 16.3 feet tomorrow morning. It 
  will then fall to 13.3 feet and begin rising again Monday morning. 
  It will rise to 14.0 feet Tuesday morning. It will then fall below 
  flood stage late Wednesday morning.
* Impact...At 17.0 feet, At this height the entire Arapaho 
  campground will be under water.

&&


             Fld   Observed        Forecasts (12 pm CST)
Location     Stg   Stg   Day/Time  Sun   Mon   Tue   Wed   Thu

Meramec River
Sullivan     11.0  14.4  Sat 8 am  15.4  13.4  13.6  10.6  8.2





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

TES

820 
WGUS83 KLSX 140122
FLSLSX

Flood Statement
National Weather Service St Louis MO
722 PM CST Sat Mar 13 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.

  

&&


MOC055-221-151330-
/O.EXT.KLSX.FL.W.0016.000000T0000Z-210318T2145Z/
/SLLM7.1.ER.210312T2023Z.210314T0600Z.210317T1545Z.NO/
722 PM CST Sat Mar 13 2021

...The Flood Warning is now in effect until Thursday afternoon...

The Flood Warning continues for
  the Meramec River near Sullivan.
* Until Thursday afternoon.
* At 7:00 PM CST Saturday the stage was 14.6 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:00 PM CST Saturday was 14.6 feet.
* Forecast...The river is expected to rise to a crest of 14.9 feet 
  just after midnight tonight. It will then fall below flood stage 
  late Wednesday morning.
* Impact...At 14.5 feet, At this height the Arapaho Campground will 
  evacuate campers.  This campground is about 8.5 river miles 
  downstream from the gage.  About 14.3 miles upstream of the gage...
  Cave Road access to Ozark Outdoors begins flooding near this 
  height.

&&


             Fld   Observed        Forecasts (6 pm CST)
Location     Stg   Stg   Day/Time  Sun   Mon   Tue   Wed   Thu

Meramec River
Sullivan     11.0  14.6  Sat 7 pm  12.6  12.6  12.9  10.0  8.0





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

MRB

594 
WGUS83 KLSX 141422
FLSLSX

Flood Statement
National Weather Service St Louis MO
922 AM CDT Sun Mar 14 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.

  

&&


MOC055-221-160230-
/O.EXT.KLSX.FL.W.0016.000000T0000Z-210318T0800Z/
/SLLM7.1.ER.210312T2023Z.210314T0445Z.210317T0200Z.NO/
922 AM CDT Sun Mar 14 2021

...The Flood Warning is now in effect until early Thursday morning...

The Flood Warning continues for
  the Meramec River near Sullivan.
* Until late Wednesday night.
* At 9:00 AM CDT Sunday the stage was 13.7 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:00 AM CDT Sunday was 14.8 feet.
* Forecast...The river is expected to fall below flood stage late 
  Tuesday evening and continue falling to 6.1 feet Saturday morning.
* Impact...At 13.5 feet, Cave Road begins flooding at Onondaga Cave 
  State Park near this height.

&&


             Fld   Observed        Forecasts (7 am CDT)
Location     Stg   Stg   Day/Time  Mon   Tue   Wed   Thu   Fri

Meramec River
Sullivan     11.0  13.7  Sun 9 am  11.3  11.4  10.4  8.4   7.0





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

TES

948 
WGUS83 KLSX 150108
FLSLSX

Flood Statement
National Weather Service St Louis MO
808 PM CDT Sun Mar 14 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 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.weather.gov/ahps2/index.php?wfo=lsx.

  

&&


MOC055-221-161315-
/O.EXT.KLSX.FL.W.0016.000000T0000Z-210316T1512Z/
/SLLM7.1.ER.210312T2023Z.210314T0445Z.210315T0912Z.NO/
808 PM CDT Sun Mar 14 2021

...The Flood Warning is now in effect until late Tuesday morning...

The Flood Warning continues for
  the Meramec River near Sullivan.
* Until Tuesday morning.
* At 7:30 PM CDT Sunday the stage was 13.1 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:30 PM CDT Sunday was 14.8 feet.
* Forecast...The river is expected to fall below flood stage late 
  tonight and continue falling to 5.7 feet Saturday evening.

&&


             Fld   Observed        Forecasts (7 pm CDT)
Location     Stg   Stg   Day/Time  Mon   Tue   Wed   Thu   Fri

Meramec River
Sullivan     11.0  13.1  Sun 7 pm  9.1   8.8   8.5   7.1   6.2





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

MRB

914 
WGUS83 KLSX 150849
FLSLSX

Flood Statement
National Weather Service St Louis MO
349 AM CDT Mon Mar 15 2021

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

  Meramec River near Sullivan.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 48 hours.

MOC055-221-151000-
/O.CAN.KLSX.FL.W.0016.000000T0000Z-210315T0849Z/
/SLLM7.1.ER.210312T2023Z.210314T0445Z.210315T0912Z.NO/
349 AM CDT Mon Mar 15 2021

...The Flood Warning for the Meramec River near Sullivan has been 
cancelled...

The Flood Warning is cancelled for
  the Meramec River near Sullivan.
* At 3:30 AM CDT Monday the stage was 9.8 feet.
* Flood stage is 11.0 feet.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:30 PM CDT Sunday was 14.8 feet.
* Forecast...The river is expected to fall below flood stage early 
  this morning and continue falling to 5.7 feet Saturday evening.

&&


             Fld   Observed        Forecasts (1 am CDT)
Location     Stg   Stg   Day/Time  Tue   Wed   Thu   Fri   Sat

Meramec River
Sullivan     11.0  13.1  Sun 7 pm  8.9   8.8   8.2   6.9   6.0





&&

LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
      3837 9082

$$

BRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 5:55 AM CST	River Flood Warning	LSX	Madison, Saint Francois	7 hr
Mar 12, 9:44 AM CST	River Flood Warning	LSX	Reynolds	52 hr
Mar 12, 9:57 AM CST	River Flood Warning	LSX	Crawford	34 hr
Mar 12, 9:57 AM CST	River Flood Warning	LSX	Jefferson	57 hr

Nearby

River Flood Warnings in Missouri, 2021 Every river flood warning in 2021

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.