ADAIR-ADAMS-CASS-RINGGOLD-TAYLOR-UNION-

914 AM CDT TUE AUG 16 2011

…THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CONTINUE OVER PORTIONS OF SOUTHERN AND SOUTHWEST IOWA… 

THUNDERSTORMS COULD PRODUCE ANOTHER INCH OF RAINFALL THROUGH 10 AM BETWEEN ATLANTIC…CRESTON…MOUNT AYR…BEDFORD AND CORNING. SOME OF THIS AREA HAS ALREADY RECEIVED 2 TO 4 INCHES OF RAIN ACCORDING TO RAIN GAGE MEASUREMENTS AND DOPPLER RADAR ESTIMATES. STREET FLOODING AND PONDING OF WATER WILL OCCUR IN URBAN AREAS…ALONG WITH REDUCED VISIBILITY. DITCHES AND SMALL STREAMS COULD QUICKLY RISE TO BANK FULL IN RURAL AREAS. THE AREA OF HEAVIEST RAIN SHOULD BEGIN TO DRIFT SOUTH INTO MISSOURI AFTER 10 AM. 

OCCASIONAL CLOUD TO GROUND LIGHTNING…BRIEF HEAVY DOWNPOURS…ARE POSSIBLE WITH THIS STORM. 

IF YOU ENCOUNTER PONDED WATER ON HIGHWAYS…DO NOT DRIVE THROUGH IT.