

000 

WGUS53 KFSD 230235

FFWFSD

SDC023-043-230530-



BULLETIN - EAS ACTIVATION REQUESTED

FLASH FLOOD WARNING

NATIONAL WEATHER SERVICE SIOUX FALLS SD

930 PM CDT TUE MAY 22 2007



THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A



* FLASH FLOOD WARNING FOR...

  EASTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA

  EASTERN DOUGLAS COUNTY IN SOUTHEAST SOUTH DAKOTA



* UNTIL 1230 AM CDT



* AT 929 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED

  VERY HEAVY RAIN FROM A LINE OF THUNDERSTORMS OVER THE WARNED AREA.



* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARTY...

  RAVINIA...CORSICA AND ARMOUR.



A LINE OF THUNDERSTORMS LOCATED FROM BETWEEN LAKE ANDES AND WAGNER 

IN CHARLES MIX COUNTY...NORTH INTO THE EASTERN HALF OF DOUGLAS 

COUNTY. THIS LINE OF THUNDERSTORMS IS MOVING NORTH-NORTHEAST AT 30 

MPH...WITH ADDITIONAL THUNDERSTORMS IN NEBRASKA EXPECTED TO MOVE 

OVER THE SAME AREAS THROUGH 11 PM.



RADAR IS ESTIMATING RAINFALL IN EXCESS OF 2 INCHES MAY HAVE ALREADY 

FALLEN BETWEEN LAKE ANDES AND WAGNER...WITH UP TO AN ADDITIONAL INCH 

POSSIBLE THROUGH 11 PM.



EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 

CREEKS AND STREAMS...URBAN AREAS...COUNTRY ROADS AND HIGHWAYS...AS 

WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.



BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 

DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 

UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 

SUBJECT TO FLOODING WHEN WATER BEGINS RISING.



TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY

YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SIOUX

FALLS.



LAT...LON 4307 9856 4291 9836 4323 9820 4350 9810

      4349 9840



$$

 JH



000 

WGUS53 KFSD 230235

FFWFSD

SDC023-043-230530-



BULLETIN - EAS ACTIVATION REQUESTED

FLASH FLOOD WARNING

NATIONAL WEATHER SERVICE SIOUX FALLS SD

930 PM CDT TUE MAY 22 2007



THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A



* FLASH FLOOD WARNING FOR...

  EASTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA

  EASTERN DOUGLAS COUNTY IN SOUTHEAST SOUTH DAKOTA



* UNTIL 1230 AM CDT



* AT 929 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED

  VERY HEAVY RAIN FROM A LINE OF THUNDERSTORMS OVER THE WARNED AREA.



* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARTY...

  RAVINIA...CORSICA AND ARMOUR.



A LINE OF THUNDERSTORMS LOCATED FROM BETWEEN LAKE ANDES AND WAGNER 

IN CHARLES MIX COUNTY...NORTH INTO THE EASTERN HALF OF DOUGLAS 

COUNTY. THIS LINE OF THUNDERSTORMS IS MOVING NORTH-NORTHEAST AT 30 

MPH...WITH ADDITIONAL THUNDERSTORMS IN NEBRASKA EXPECTED TO MOVE 

OVER THE SAME AREAS THROUGH 11 PM.



RADAR IS ESTIMATING RAINFALL IN EXCESS OF 2 INCHES MAY HAVE ALREADY 

FALLEN BETWEEN LAKE ANDES AND WAGNER...WITH UP TO AN ADDITIONAL INCH 

POSSIBLE THROUGH 11 PM.



EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 

CREEKS AND STREAMS...URBAN AREAS...COUNTRY ROADS AND HIGHWAYS...AS 

WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.



BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 

DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 

UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 

SUBJECT TO FLOODING WHEN WATER BEGINS RISING.



TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY

YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SIOUX

FALLS.



LAT...LON 4307 9856 4291 9836 4323 9820 4350 9810

      4349 9840



$$

 JH

