652
WGUS53 KFSD 030600
FFWFSD
NEC051-SDC009-027-127-135-030900-
/O.NEW.KFSD.FF.W.0006.260703T0600Z-260703T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
100 AM CDT FRI JUL 3 2026
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN DIXON COUNTY IN NORTHEASTERN NEBRASKA...
SOUTHEASTERN BON HOMME COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
SOUTHERN CLAY COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
SOUTHWESTERN UNION COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
SOUTHERN YANKTON COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
* UNTIL 400 AM CDT.
* AT 100 AM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN
1 AND 3 INCHES OF RAIN HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 1
TO 2 INCHES IN 1 HOUR. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES
ARE POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS ONGOING OR
EXPECTED TO BEGIN SHORTLY.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.
SOURCE...RADAR AND AUTOMATED GAUGES.
IMPACT...FLASH FLOODING OF ESPECIALLY URBAN AREAS, ALONG WITH SMALL
CREEKS AND STREAMS, HIGHWAYS, STREETS AND UNDERPASSES, AS
WELL AS OTHER POOR DRAINAGE AND LOW- LYING AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
YANKTON, VERMILLION, LEWIS AND CLARK STATE RECREATION AREA, ELK
POINT, NEWCASTLE, MECKLING AND MASKELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS, RIVERS, OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.
LAT...LON 4285 9777 4291 9767 4292 9740 4279 9668
4262 9664 4264 9702 4276 9702 4277 9713
4280 9715 4281 9721 4285 9722 4287 9731
4285 9757 4286 9761 4284 9767
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
JH
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