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000 

WGUS73 KDMX 180139

FFSDMX

IAC121-181-180345-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DES MOINES IA

828 PM CDT MON MAY 17 2004



...A FLASH FLOOD WARNING CONTINUES FOR NORTHEASTERN MADISON AND

NORTHWESTERN WARREN COUNTIES UNTIL 1045 PM...



AT 828 PM...THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAINFALL HAD 

MOVED EAST OF THE WARNED AREA.  ADDITIONAL SHOWERS AND THUNDERSTORMS 

WILL MOVE NORTHEAST ACROSS SOUTH CENTRAL IOWA...BUT THIS ACTIVITY 

SHOULD NOT PRODUCE AS HEAVY OF RAINFALL AS THE STORMS EARLIER THIS 

EVENING. AN ADDITIONAL ONE HALF INCH OF RAIN IS POSSIBLE. 



HEAVY RAIN...LIKELY EXCEEDING OVER 3.5 INCHES...FELL FROM JUST 

NORTHEAST OF WINTERSET EAST TO NEAR MARTENSDALE. A WEATHER SERVICE 

SPOTTER REPORTED 3.5 INCHES OF RAIN 1 MILE NORTH OF PATTERSON.  



THE HEAVY RAIN SHOULD PRODUCE FLASH FLOODING IN THE CEDAR CREEK 

BASIN IN NORTHEAST MADISON COUNTY AND THE SMALL TRIBUTARIES ALONG 

THE MIDDLE RIVER IN NORTHWEST WARREN COUNTY NEAR MARTENSDALE. 



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 4150 9404 4130 9402 4130 9360 4151 9358



$$



JOHNSON

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