Flash Flood Warning 101, NWS St. Louis, MO

Issued

Sep 18, 2010, 8:56 PM CDT (01:56 UTC)

Expired

Sep 19, 2010, 3:00 AM CDT

In force

6 hr

Issued by

NWS St. Louis, MO

Area

Storm-based polygon

Flood severity

None

Counties Knox County, MO, Lewis County, MO

The St Louis radar (KLSX), 191 km from the middle of the area, began a volume at 01:58 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.

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

970 
WGUS53 KLSX 190156
FFWLSX
MOC103-111-190800-
/O.NEW.KLSX.FF.W.0101.100919T0156Z-100919T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
856 PM CDT SAT SEP 18 2010

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KNOX COUNTY IN NORTHEAST MISSOURI...
  LEWIS COUNTY IN NORTHEAST MISSOURI...

* UNTIL 300 AM CDT SUNDAY

* AT 850 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A TRAINING LINE OF THUNDERSTORMS WITH HEAVY RAINFALL ACROSS THE    
  WARNED AREA. THIS AREA HAS ALREADY RECEIVED AMOUNTS OF UPWARDS OF  
  1.25 INCHES OF RAINFALL FROM STORMS EARLIER TODAY.  THE TRAINING   
  LINE OF STORMS WILL RESULT IN ADDITIONAL RAINFALL AMOUNTS OF       
  UPWARDS OF 2 INCHES.  

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CANTON...EDINA...COLONY...EWING...GREENSBURG...KNOX CITY...LA
  BELLE...LA GRANGE...LEWISTOWN...MAYWOOD...PLEVNA AND STEFFENVILLE.

  LEWIS COUNTY MISSOURI EMERGENCY MANAGEMENT HAS REPORTED            
  FLOODING AT THE INTERSECTION OF HIGHWAY 16 AND COUNTY ROAD Z JUST  
  EAST OF MONTICELLO RESULTING IN THE ROAD BEING CLOSED...IN         
  ADDITION TO REPORTS OF LOW WATER CROSSING BECOMING INUNDATED       
  ACROSS LEWIS COUNTY.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN 
WATER BEGINS RISING.

&&

LAT...LON 4031 9196 4026 9194 4025 9150 4015 9152
      4006 9151 3994 9145 3995 9235 4030 9236

$$

SIPPRELL

286 
WGUS73 KLSX 190343
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1043 PM CDT SAT SEP 18 2010

MOC103-111-190800-
/O.CON.KLSX.FF.W.0101.000000T0000Z-100919T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS MO-KNOX MO-
1043 PM CDT SAT SEP 18 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR KNOX AND LEWIS COUNTIES
UNTIL 300 AM CDT...

AT 1038 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING TO TRAIN ACROSS 
THE WARNED AREA. RADAR ESTIMATES HAVE HIGHLIGHTED AMOUNTS OF 4 TO 5 
INCHES ALONG A LINE EXTENDED FROM EASTERN PORTIONS OF KNOX COUNTY 
INTO SOUTHEAST LEWIS COUNTY MISSOURI.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CANTON...EDINA...COLONY...EWING...GREENSBURG...KNOX CITY...LA
BELLE...LEWISTOWN...MAYWOOD...PLEVNA AND STEFFENVILLE.

FLASH FLOODING HAS BEEN REPORTED AT MULTIPLE LOCATIONS ACROSS LEWIS 
COUNTY BY LOCAL EMERGENCY MANAGEMENT IN THE VICINITY OF CANTON...LA 
GRANGE...AND LEWISTOWN MISSOURI.  PRESENTLY SEVERAL COUNTY HIGHWAYS 
REMAIN CLOSED DUE TO FLOWING WATER OVER THE ROADWAYS MAKING THEM 
IMPASSABLE.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CANTON...
EDINA...COLONY...EWING...GREENSBURG...KNOX CITY...LA BELLE...
LEWISTOWN...MAYWOOD...PLEVNA AND STEFFENVILLE.

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.

ADDITIONAL RAINFALL AMOUNTS OF UPWARDS OF ONE TO TWO INCHES ARE 
POSSIBLE IN THE WARNED AREA AS STORMS ARE ANTICIPATED TO CONTINUE 
TRAINING ACROSS THE REGION.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4031 9196 4026 9194 4025 9150 4015 9152
      4006 9151 3994 9145 3995 9235 4030 9236

$$

SIPPRELL

Flash Flood Warnings in Missouri, 2010Every flash flood warning in 2010

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.