708
WGUS53 KFSD 171948
FFWFSD
IAC149-167-SDC127-172245-
/O.NEW.KFSD.FF.W.0001.250617T1948Z-250617T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
248 PM CDT TUE JUN 17 2025
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN PLYMOUTH COUNTY IN NORTHWESTERN IOWA...
SOUTH CENTRAL SIOUX COUNTY IN NORTHWESTERN IOWA...
CENTRAL UNION COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
* UNTIL 545 PM CDT.
* AT 248 PM CDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 0.5 AND 2.5 INCHES OF
RAIN HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 2 TO 3 INCHES IN 1
HOUR. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN
THE WARNED AREA. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN
SHORTLY.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.
SOURCE...RADAR.
IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN
AREAS, HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS
OTHER POOR DRAINAGE AND LOW-LYING AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
AKRON, IRETON AND CHATSWORTH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
LAT...LON 4289 9662 4300 9632 4295 9628 4278 9660
4283 9665
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
WEISSER
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