990
WGUS63 KDMX 082018
FFADMX
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE DES MOINES IA
318 PM CDT FRI AUG 8 2025
IAZ037>039-048>050-059>062-072>075-082>086-093>097-091630-
/O.NEW.KDMX.FA.A.0006.250809T1800Z-250811T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-DALLAS-POLK-JASPER-
POWESHIEK-MADISON-WARREN-MARION-MAHASKA-UNION-CLARKE-LUCAS-MONROE-
WAPELLO-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF DIKE, NEWTON, OSCEOLA, CARLISLE, PELLA,
IOWA FALLS, WELLSBURG, OTTUMWA, TAMA, GLADBROOK, LEON, TOLEDO,
BLOOMFIELD, CHARITON, ACKLEY, WATERLOO, MARSHALLTOWN, WINTERSET,
LAMONI, NORWALK, DYSART, WAUKEE, GRINNELL, CORYDON, INDIANOLA,
AMES, CONRAD, REINBECK, CRESTON, ALLERTON, SEYMOUR, HUMESTON,
GRUNDY CENTER, KNOXVILLE, TRAER, ADEL, MOUNT AYR, ELDORA,
OSKALOOSA, ALBIA, CEDAR FALLS, DES MOINES, PERRY, CENTERVILLE,
AND EARLHAM
318 PM CDT FRI AUG 8 2025
...FLOOD WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH MONDAY
AFTERNOON...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...PORTIONS OF CENTRAL, NORTHEAST, SOUTH CENTRAL, AND
SOUTHEAST IOWA, INCLUDING THE FOLLOWING COUNTIES, IN CENTRAL IOWA,
DALLAS, GRUNDY, HARDIN, JASPER, MARSHALL, POLK, POWESHIEK, STORY
AND TAMA. IN NORTHEAST IOWA, BLACK HAWK. IN SOUTH CENTRAL IOWA,
APPANOOSE, CLARKE, DECATUR, LUCAS, MADISON, MAHASKA, MARION,
MONROE, RINGGOLD, UNION, WARREN AND WAYNE. IN SOUTHEAST IOWA,
DAVIS AND WAPELLO.
* WHEN...FROM SATURDAY AFTERNOON THROUGH MONDAY AFTERNOON.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING MAY OCCUR
IN POOR DRAINAGE AND URBAN AREAS. LOW-WATER CROSSINGS MAY BE
FLOODED.
* ADDITIONAL DETAILS...
- SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THIS WEEKEND. A
BAND OF HEAVY TO VERY HEAVY RAINFALL MAY OCCUR, ESPECIALLY
SATURDAY NIGHT AND AGAIN SUNDAY NIGHT. SOME LOCATIONS MAY
HAVE EVENT TOTALS EXCEEDING 5 INCHES OF RAINFALL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR THE LATEST WATERWAY OBSERVATIONS AND FORECASTS REFER TO
WEATHER.GOV/DESMOINES/WATER.
DONAVON
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