Flash Flood Warning 15, NWS St. Louis, MO

Issued

Apr 24, 2011, 12:00 PM CDT (17:00 UTC)

Expired

Apr 24, 2011, 6:00 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, Jefferson County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO

The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 17:00 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.

392 
WGUS53 KLSX 241700
FFWLSX
ILC133-157-MOC055-093-099-123-179-186-187-221-242300-
/O.NEW.KLSX.FF.W.0015.110424T1700Z-110424T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1200 PM CDT SUN APR 24 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...
  SOUTHERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHERN MONROE COUNTY IN SOUTHWEST ILLINOIS...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
  WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 600 PM CDT SUNDAY

* AT 1155 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED RAIN AND THUNDERSTORMS WITH TORRENTIAL DOWNPOURS
  STRETCHING FROM  EXTREME SOUTHWEST ILLINOIS INTO NORTHWEST 
  ARKANSAS.  ALL OF THIS RAIN IS MOVING EAST-NORTHEAST...AND WILL
  BE PUSHING ACROSS THE WARNING AREA THIS AFTERNOON. 
 
  THOSE IN THE WARNING AREA SHOULD NOT TAKE THIS FLASH FLOOD THREAT
  LIGHTLY.  BECAUSE OF THE SATURATED GROUND...LOCALIZED DOWNPOURS
  WILL CAUSE EXTREMELY RAPID RISES IN WATER LEVELS.  THOSE LIVING
  IN FLOOD PRONE AREAS ARE STRONGLY URGED TO MOVE TO HIGHER GROUND.  
  OF PARTICULAR CONCERN ARE THE AREAS ALONG AND SOUTH OF A BIXBY
  MISSOURI...SPARTA ILLINOIS LINE...WHERE RAINFALLS OF 4 TO
  6 INCHES HAVE OCCURRED OVER THE LAST FEW DAYS.

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

NUMEROUS ROADS ACROSS THE REGION HAVE BEEN CLOSED DUE TO 
FLOODING...INCLUDINGD...INCLUDING MISSOURI HIGHWAY 106 AND ROUTE B 
IN REYNOLD COUNTY...MISSOURI HIGHWAY 49 AND ROUTE F IN IRON 
COUNTY...ROUTES C AND F IN MADISON COUNTY...AND ROUTE OO IN ST. 
FRANCOIS COUNTY.   

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3754 9132
      3760 9132 3760 9117 3769 9117 3780 9154
      3781 9153 3803 9115 3819 9058 3821 8960
      3795 8960 3781 8969 3790 8985 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.