FLOOD WATCH
Warning Issue Date: 921 PM CST WED DEC 23 2009
...FLOOD WATCH REMAINS IN EFFECT FROM 6 AM CST THURSDAY THROUGH
LATE THURSDAY NIGHT...
THE FLOOD WATCH CONTINUES FOR
* PORTIONS OF CENTRAL IOWA...NORTHEAST IOWA...SOUTH CENTRAL IOWA
AND SOUTHEAST IOWA...INCLUDING THE FOLLOWING AREAS...IN
CENTRAL IOWA...JASPER...MARSHALL...POLK...POWESHIEK AND TAMA.
IN NORTHEAST IOWA...BLACK HAWK. IN SOUTH CENTRAL IOWA...
APPANOOSE...CLARKE...DECATUR...LUCAS...MAHASKA...MARION...
MONROE...WARREN AND WAYNE. IN SOUTHEAST IOWA...DAVIS AND
WAPELLO.
* FROM 6 AM CST THURSDAY THROUGH LATE THURSDAY NIGHT
* MODERATE TO HEAVY RAINFALL...AND SOME THUNDERSTORMS...ARE
EXPECTED. THIS RAINFALL...COMBINED WITH SNOW MELT...MAY LEAD
TO FLOODING ON AREA RIVERS. LOCALIZED FLOODING MAY ALSO OCCUR
IN OTHER AREAS...SUCH AS URBAN AREAS...WHERE THE DRAINAGE
SYSTEMS MAY BE IMPAIRED DUE TO SNOW AND ICE CLOGGED INTAKES.
* ANOTHER CONCERN IS BREAK UP ICE JAMS ON AREA RIVERS. THE
RUNOFF WILL LIKELY BE ENOUGH TO BREAK UP THE ICE ESPECIALLY AS
ONE MOVES SOUTHWARD. SINCE THE RIVER ICE IS RELATIVELY THIN...
THOUGH...ONLY MINOR...LOCALIZED PROBLEMS DUE TO ICE JAMS ARE
EXPECTED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
$$
COGIL
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