Flash Flood Warning 10, NWS St. Louis, MO

Issued

Apr 22, 2011, 10:55 PM CDT (03:55 UTC)

Expired

Apr 23, 2011, 5:00 AM 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), 119 km from the middle of the area, began a volume at 03:55 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

122 
WGUS53 KLSX 230355
FFWLSX
ILC133-157-MOC055-093-123-179-186-187-221-231000-
/O.NEW.KLSX.FF.W.0010.110423T0355Z-110423T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1055 PM CDT FRI APR 22 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...
  SOUTH CENTRAL MONROE COUNTY IN SOUTHWEST ILLINOIS...
  SOUTHEASTERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
  SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 500 AM CDT SATURDAY

* AT 1050 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL DEVELOPING 
  ACROSS SOUTH CENTRAL AND SOUTHEAST MISSOURI. SEVERAL OF THESE
  STORMS WILL BE MOVING OVER THE SAME AREA...PRODUCING POCKETS 
  OF EXTREMELY HEAVY RAIN THAT WILL MAKE FLASH FLOODING A VERY
  REAL DANGER.

* 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...BUNKER...COFFMAN...
  COULTERVILLE...COURTOIS...ELLINGTON...EVANSVILLE...GARWOOD...
  GLOVER...IRON MOUNTAIN AND IRONDALE.

AT THIS TIME...IT APPEARS THAT THE AXIS OF HEAVIEST RAIN WILL BE 
CENTERED ON A VIBURNUM MISSOURI...SPARTA ILLINOIS LINE.  SOME 
LOCATIONS IN THIS HEAVY RAIN AXIS MAY PICK UP 2 TO 4 INCHES OF RAIN 
IN A VERY SHORT PERIOD OF TIME. 

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 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 3706 9097

$$

TRUETT

708 
WGUS73 KLSX 230641
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
141 AM CDT SAT APR 23 2011

ILC133-157-MOC055-093-123-179-186-187-221-231000-
/O.CON.KLSX.FF.W.0010.000000T0000Z-110423T1000Z/
/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-
141 AM 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
500 AM CDT...

AT 135 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
BETWEEN TWO AND FOUR INCHES OF RAIN HAS FALLEN OVER THE AREA WITH 
LOCALLY HIGHER AMOUNTS. THIS IS IN ADDITION TO HEAVY RAIN THAT FELL 
OVER THE AREA FRIDAY MORNING. THIS AREA COULD SEE ANOTHER ONE TO TWO 
INCHES IN THE NEXT HOUR OR SO.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL IS CAUSING FLASH FLOODING. 
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BISMARCK...BONNE TERRE...CHESTER...DESLOGE...FARMINGTON... 
FREDERICKTOWN...IRONTON...LE ADWOOD...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.

AT 115 AM...ST. FRANCOIS COUNTY SHERIFFS DEPARTMENT REPORTED THAT 
U.S. HIGHWAY 67 WAS CLOSED DUE TO WATER OVER THE ROADWAY IN TOWN. 
ALSO SEVERAL WATER RESCUES WERE UNDERWAY IN THE AREA.

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 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 3706 9097

$$

BYRD

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.