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000 

WGUS73 KDMX 010220

FFSDMX

IAC117-123-125-135-010330-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DES MOINES IA

920 PM CDT WED APR 30 2003



...A FLASH FLOOD WARNING CONTINUES FOR MAHASKA...MARION...LUCAS AND 

MONROE COUNTIES UNTIL 1245 AM...



AT 920 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 

THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS MOVING INTO THE FOUR 

COUNTY AREA. 



THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA...AND

ADDITIONAL RAIN WILL CONTINUE TO PRODUCE SIGNIFICANT RUNOFF INTO

SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL 

RATES OF 1/2 INCH TO 1 INCH PER HOUR. THIS WILL PRODUCE FLASH 

FLOODING ALONG THE SMALLER STREAMS AND CREEKS IN THE FOUR COUNTY 

AREA.  



FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID 

WATER COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT 

OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.



LAT...LON 4152 9243 4117 9243 4118 9267 4092 9269

          4092 9357 4115 9355 4117 9332 4151 9333



FORSTER



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