817
WGUS63 KDMX 091447
FFADMX
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE DES MOINES IA
947 AM CDT SAT AUG 9 2025
IAZ028-037>039-047>050-059>062-072>075-082>086-092>097-101100-
/O.EXT.KDMX.FA.A.0006.250810T0000Z-250811T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BREMER-HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-
POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-UNION-CLARKE-
LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-
DAVIS-
INCLUDING THE CITIES OF TOLEDO, PERRY, WINTERSET, DES MOINES,
GRUNDY CENTER, ALLERTON, CARLISLE, WAUKEE, CHARITON, LEON,
CENTERVILLE, BOONE, TAMA, OTTUMWA, CONRAD, ALBIA, NEW MARKET,
AMES, CEDAR FALLS, MOUNT AYR, KNOXVILLE, WELLSBURG, ELDORA,
WAVERLY, NORWALK, OSKALOOSA, CORYDON, HUMESTON, GRINNELL, LENOX,
SEYMOUR, OSCEOLA, MARSHALLTOWN, GLADBROOK, ACKLEY, LAMONI,
BLOOMFIELD, IOWA FALLS, DIKE, BEDFORD, REINBECK, DYSART, EARLHAM,
WATERLOO, ADEL, PELLA, INDIANOLA, NEWTON, CRESTON, AND TRAER
947 AM CDT SAT AUG 9 2025
...FLOOD WATCH NOW IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
MONDAY AFTERNOON...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...PORTIONS OF CENTRAL, NORTHEAST, SOUTH CENTRAL, SOUTHEAST,
AND SOUTHWEST IOWA, INCLUDING THE FOLLOWING COUNTIES, IN CENTRAL
IOWA, BOONE, DALLAS, GRUNDY, HARDIN, JASPER, MARSHALL, POLK,
POWESHIEK, STORY AND TAMA. IN NORTHEAST IOWA, BLACK HAWK AND
BREMER. 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,
TAYLOR.
* WHEN...FROM 7 PM CDT THIS EVENING 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 TONIGHT
THROUGH SUNDAY NIGHT. A BAND OF HEAVY TO VERY HEAVY RAINFALL
MAY OCCUR, ESPECIALLY
TONIGHT 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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