

952 

RWUS32 KDSM 021128

FFSDSM

IAZ033-034-021200-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DES MOINES IA

625 AM CDT WED MAY 2 2001



...FLASH FLOOD WARNING UNTIL 7 AM...



WARNING INFORMATION-- A FLASH FLOOD WARNING CONTINUES UNTIL 7 AM 

CDT FOR SAC AND CALHOUN COUNTIES. SOME CITIES IN THE WARNING 

INCLUDE...SAC CITY...LAKE VIEW...WALL LAKE...AUBURN...YETTER... 

LYTTON...ROCKWELL CITY...JOLLEY...AND LAKE CITY. 



RECENT REPORTS-- THE CALHOUN COUNTY SHERIFF DEPARTMENT AND SPOTTER 

REPORTS INDICATED 4.5 INCHES OF RAINFALL WAS COMMON ACROSS THE 

WARNED AREA. LOCALLY HIGHER AMOUNTS WERE REPORTED IN SAC COUNTY WITH 

A REPORT OF 6 TO 7 INCHES OR RAIN AROUND THE LAKE VIEW AREA. RADAR 

RAINFALL ESTIMATED INDICATE THAT 6 TO 10 INCHES OF RAIN MAY BE 

POSSIBLE OVER PORTIONS OF SAC AND CALHOUN COUNTIES.



FORECAST RAINFALL-- THE HEAVIEST RAINS HAVE NOW MOVED EAST OF THE 

AREA. LIGHT TO MODERATE RAIN OR THUNDER SHOWERS ARE EXPECTED TO 

CONTINUE ON AND OFF THROUGH 7 AM. AN ADDITIONAL QUARTER OF AN INCH 

OF RAIN MAY OCCUR IN SOME AREAS THROUGH THIS TIME WITH MOST AREAS 

AVERAGING AROUND A TENTH OF AN INCH. 



ALTHOUGH THE HEAVIEST RAINFALL HAS DIMINISHED...RUNOFF OF THE 

ALREADY FALLEN RAIN COULD CONTINUE FOR THE NEXT SEVERAL HOURS. 

BEWARE THAT STREAMS...CREEKS...AND LOW LYING AREAS MAY CONTINUE TO 

EXPERIENCE RISING WATER EVEN THOUGH THE RAIN HAS DIMINISHED. SOME 

ROADS MAY REMAIN IMPASSABLE THROUGH AT LEAST SUNRISE.



PRECAUTIONS-- BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO 

RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. DO NOT DRIVE INTO 

WATER OF UNKNOWN DEPTH...THE ROAD MAY BE WASHED OUT.



LAT...LON 4254 9538 4222 9529 4223 9442 4254 9447



$$



JAW

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