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000 

RWUS32 KDSM 130107

FFSDSM

IAZ049-130315-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DES MOINES IA

808 PM CDT WED JUN 12 2002



...A FLASH FLOOD WARNING CONTINUES FOR MARSHALL COUNTY UNTIL 1015

PM...



AT 803 PM...RADAR ESTIMATED RAINFALL OF ONE AND ONE HALF TO TWO 

INCHES OVER A LARGE PORTION OF SOUTHERN MARSHALL COUNTY.  THIS 

CORRIDOR WAS ALONG AND NEAR THE HIGHWAY 330 CORRIDOR.  A SPOTTER 

REPORTED ONE AND ONE QUARTER INCHES OF RAIN FROM 7:00 PM TO 7:30 PM.



SLOW MOVING THUNDERSTORMS HAVE WEAKENED OVER THE LAST 30 

MINUTES...SO TORRENTIAL RAINFALL HAS DIMINISHED.  

HOWEVER...RESULTING RUNOFF IS CAPABLE OF FLASH FLOODING...ESPECIALLY 

ON LOW LYING ROADS.



FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. NEVER DRIVE

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

LESS THAN ONE FOOT OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF

THE ROAD.



LAT...LON 4188 9322 4188 9280 4221 9279 4221 9323



KULA

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