CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE– DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS COUNTIES IN IOWA….

620 PM CDT SAT APR 14 2012

…THUNDERSTORMS WILL PRODUCE BRIEF AND INTENSE HEAVY RAINFALL…

IN ADDITION TO THE SEVERE WEATHER THREAT THIS EVENING…THE THUNDERSTORMS HAVE A HISTORY OF PRODUCING BRIEF…AND INTENSE…HEAVYRAINFALL. IN THE MOST EXTREME CASES…TWO TO TWO AND HALF INCHES OF RAIN HAS FALLEN IN LESS THAN ONE HOUR.

THROUGH THE REMAINDER OF THE EVENING…THE THUNDERSTORMS WILL BE CAPABLE OF PRODUCE ADDITIONAL INTENSE AND BRIEF HEAVY RAIN. THE HEAVY RAIN WILL LIKELY PRODUCE LOCAL URBAN AND SMALL STREAM FLOODING. THE URBAN FLOODING WILL CAUSE LOCAL TRAVEL PROBLEMS. IF THE STORMS TEND TO TRAIN OVER THE SAME AREA…FLASH FLOODING WILL BE POSSIBLE AND WARNINGS WILL NEED TO BE ISSUED. THIS IS POSSIBLE…BUT NOT LIKELY.

NEVER DRIVE TO FLOODED ROADS.