FLASH FLOOD WATCH Warning Issue Date: 422 AM CDT SAT JUL 26 2008
...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHWEST IOWA...SOUTH CENTRAL IOWA...SOUTHEAST IOWA... SOUTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...DALLAS...HAMILTON...HARDIN... JASPER...MARSHALL...POLK...POWESHIEK...STORY...TAMA AND WEBSTER. IN NORTH CENTRAL IOWA...HUMBOLDT...KOSSUTH AND WRIGHT. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN SOUTH CENTRAL IOWA...APPANOOSE...CLARKE...DECATUR...LUCAS... MADISON...MAHASKA...MARION...MONROE...RINGGOLD...UNION... WARREN AND WAYNE. IN SOUTHEAST IOWA...DAVIS AND WAPELLO. IN SOUTHWEST IOWA...ADAIR...ADAMS...CASS AND TAYLOR. IN WEST CENTRAL IOWA...AUDUBON...CALHOUN...CARROLL...CRAWFORD... GREENE...GUTHRIE AND SAC. * FROM LATE TONIGHT THROUGH SUNDAY MORNING * THUNDERSTORMS ARE EXPECTED LATE SATURDAY NIGHT INTO SUNDAY MORNING WITH THE POTENTIAL FOR HEAVY RAINFALL. MANY AREAS FROM NORTHWEST INTO CENTRAL AND SOUTHERN IOWA ARE PRIMED FOR FLOODING PROBLEMS WITH PRECIPITATION AMOUNTS ANYWHERE FROM TWO TO TEN INCHES IN THE PAST SEVEN DAYS. MANY LOCATIONS MAY SEE ADDITIONAL ONE TO TWO INCH RAINS...WITH LOCAL AMOUNTS FROM TWO TO FOUR INCHES QUITE POSSIBLE. RAINS OF THIS MAGNITUDE COULD QUICKLY DEVELOP FLASH FLOODING CONSIDERING OUR CURRENT MOIST SOIL CONDITIONS. * FLASH FLOODING MAY DEVELOP WITH RAPID RISES IN SMALLER STREAMS AND CREEKS. RURAL ROADS MAY WASHOUT OR BECOME INUNDATED WITH STANDING WATER MAKING THEM IMPASSABLE. SIGNIFICANT URBAN FLOODING COULD RESULT AS WELL WITH PONDING WATER AND POSSIBLY WATER IN BASEMENTS...ESPECIALLY IF SUMP PUMPS FAIL. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. $$ SMALL
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