Flash Flood Warning 12, NWS St. Louis, MO

Issued

Apr 23, 2011, 12:29 PM CDT (17:29 UTC)

Expired

Apr 23, 2011, 6:30 PM CDT

In force

6 hr

Issued by

NWS St. Louis, MO

Area

Storm-based polygon

Flood severity

None

Counties Monroe County, IL, Randolph County, IL, Crawford County, MO, Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO

The St Louis radar (KLSX), 120 km from the middle of the area, began a volume at 17:31 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.

252 
WGUS53 KLSX 231729
FFWLSX
ILC133-157-MOC055-093-123-179-186-187-221-232330-
/O.NEW.KLSX.FF.W.0012.110423T1729Z-110423T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1229 PM CDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  IRON COUNTY IN SOUTHEAST MISSOURI...
  MADISON COUNTY IN SOUTHEAST MISSOURI...
  RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
  REYNOLDS COUNTY IN SOUTHEAST MISSOURI...
  SOUTHEASTERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHEASTERN MONROE COUNTY IN SOUTHWEST ILLINOIS...
  SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 630 PM CDT

* AT 1225 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH   
  FLOODING ACROSS THE WARNED AREA. NUMEROUS STATE AND COUNTY ROADS
  ARE CLOSED IN REYNOLDS...IRON...ST. FRANCOIS AND STE. GENEVIEVE   
  COUNTIES.  EVEN THOUGH THE LIGHT TO MODERATE RAIN WILL BE TAPERING
  OFF OVER THE AREA DURING THE AFTERNOON...FLOODING WILL CONTINUE.
  AND IN ADDITION...MORE HEAVY RAIN IS POSSIBLE TONIGHT.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BISMARCK...
  BONNE TERRE...CHESTER...DESLOGE...FARMINGTON...FREDERICKTOWN...
  IRONTON...LEADWOOD...POTOSI...RED BUD...SPARTA...STE. GENEVIEVE...
  ANNAPOLIS...ARCADIA...BALDWIN...BELLEVIEW...BIXBY...BLOOMSDALE...
  BREMEN...BUCKHORN...COFFMAN...COULTERVILLE...COURTOIS...
  ELLINGTON...EVANSVILLE...GARWOOD...GLOVER...IRON MOUNTAIN...
  IRONDALE AND JUNCTION CITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3706 9097 3720 9114 3750 9122 3751 9132
      3760 9132 3760 9117 3769 9117 3770 9132
      3779 9137 3794 9108 3804 9042 3823 9004
      3821 8960 3795 8960 3781 8969 3788 8993
      3765 9014 3732 9015 3727 9073 3705 9079

$$

TRUETT

718 
WGUS73 KLSX 232129
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
429 PM CDT SAT APR 23 2011

ILC133-157-MOC055-093-123-179-186-187-221-232330-
/O.CON.KLSX.FF.W.0012.000000T0000Z-110423T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH IL-MONROE IL-REYNOLDS MO-MADISON MO-IRON MO-ST. FRANCOIS MO-
STE. GENEVIEVE MO-WASHINGTON MO-CRAWFORD MO-
429 PM CDT SAT APR 23 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN CRAWFORD...
SOUTHERN WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS...IRON...
MADISON...REYNOLDS...SOUTHEASTERN MONROE AND RANDOLPH COUNTIES UNTIL
630 PM CDT...

ALTHOUGH RAIN DIMINISHED OVER SOUTHEAST MISSOURI AND EXTREME 
SOUTHWEST ILLINOIS EARLY THIS AFTERNOON...AT 423 PM CDT NATIONAL 
WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY 
HEAVY RAINFALL REDEVELOPING OVER SOUTH CENTRAL MISSOURI.  THESE 
STORMS WILL BE PUSHING INTO THE WARNING AREA EARLY THIS EVENING.  
DUE TO THE HEAVY DOWNPOUR LAST NIGHT...THESE HEAVY RAINS WILL MAKE 
FLASH FLOODING A VERY DANGEROUS AND LIFE THREATENING POSSIBILITY.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BISMARCK...BONNE TERRE...CHESTER...DESLOGE...FARMINGTON...
FREDERICKTOWN...IRONTON...LEADWOOD...POTOSI...RED BUD...SPARTA...STE.
GENEVIEVE...ANNAPOLIS...ARCADIA...BALDWIN...BELLEVIEW...BIXBY...
BLOOMSDALE...BREMEN...BUCKHORN...COFFMAN...COULTERVILLE...COURTOIS...
ELLINGTON...EVANSVILLE...GARWOOD...GLOVER...IRON MOUNTAIN...IRONDALE
AND JUNCTION CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3706 9097 3720 9114 3750 9122 3751 9132
      3760 9132 3760 9117 3769 9117 3770 9132
      3779 9137 3794 9108 3804 9042 3823 9004
      3821 8960 3795 8960 3781 8969 3788 8993
      3765 9014 3732 9015 3727 9073 3705 9079

$$

TRUETT

Flash Flood Warnings in Missouri, 2011Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.