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Home Return to list Severe Thunderstorm Warning 0044 Issued by the Sioux Falls Forecast Office
Action: New Issued At: 2026-05-17 17:56:32
223
WUUS53 KFSD 172256
SVRFSD
IAC119-141-143-167-180000-
/O.NEW.KFSD.SV.W.0044.260517T2256Z-260518T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
556 PM CDT Sun May 17 2026
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Southeastern Lyon County in northwestern Iowa...
Southwestern Osceola County in northwestern Iowa...
Northern Sioux County in northwestern Iowa...
Northwestern OBrien County in northwestern Iowa...
* Until 700 PM CDT.
* At 556 PM CDT, a severe thunderstorm was located over Doon, or 12
miles north of Sioux Center, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Hull and Doon around 600 PM CDT.
George and Boyden around 605 PM CDT.
Matlock around 610 PM CDT.
Other locations in the path of this severe thunderstorm include
Ashton and Melvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1000 PM CDT for northwestern
Iowa...and southeastern South Dakota.
&&
LAT...LON 4309 9646 4313 9644 4315 9647 4320 9648
4325 9644 4334 9627 4333 9589 4335 9559
4308 9555
TIME...MOT...LOC 2256Z 249DEG 35KT 4324 9624
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BP
Action: Cancelled Issued At: 2026-05-17 18:23:33
158
WWUS53 KFSD 172323
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
623 PM CDT Sun May 17 2026
IAC119-141-143-167-172333-
/O.CAN.KFSD.SV.W.0044.000000T0000Z-260518T0000Z/
Lyon IA-Osceola IA-Sioux IA-OBrien IA-
623 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LYON...
SOUTHWESTERN OSCEOLA...NORTHERN SIOUX AND NORTHWESTERN OBRIEN
COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for northwestern
Iowa...and southeastern South Dakota.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
&&
LAT...LON 4309 9646 4313 9644 4315 9647 4320 9648
4325 9644 4334 9627 4333 9589 4335 9559
4308 9555
TIME...MOT...LOC 2322Z 249DEG 35KT 4333 9590
$$
BP
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