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Home Return to list Severe Thunderstorm Warning 0039 Issued by the Sioux Falls Forecast Office
Action: New Issued At: 2026-05-17 15:28:58
045
WUUS53 KFSD 172028
SVRFSD
SDC009-027-067-125-135-172115-
/O.NEW.KFSD.SV.W.0039.260517T2028Z-260517T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
328 PM CDT Sun May 17 2026
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Northwestern Clay County in southeastern South Dakota...
Northeastern Bon Homme County in southeastern South Dakota...
Yankton County in southeastern South Dakota...
Turner County in southeastern South Dakota...
Southeastern Hutchinson County in southeastern South Dakota...
* Until 415 PM CDT.
* At 328 PM CDT, a severe thunderstorm was located over Menno, or 20
miles northeast of Tyndall, moving east at 45 mph.
HAZARD...80 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
* This severe thunderstorm will be near...
Freeman around 335 PM CDT.
Other locations in the path of this severe thunderstorm include
Parker, Marion and Hurley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This is a potentially deadly storm. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
&&
LAT...LON 4292 9767 4328 9771 4350 9713 4302 9691
TIME...MOT...LOC 2028Z 249DEG 39KT 4322 9760
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Weisser
Action: Continued Issued At: 2026-05-17 15:37:28
200
WWUS53 KFSD 172037
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
337 PM CDT Sun May 17 2026
SDC009-027-067-125-135-172115-
/O.CON.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Clay SD-Bon Homme SD-Yankton SD-Turner SD-Hutchinson SD-
337 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHWESTERN CLAY...NORTHEASTERN BON HOMME...YANKTON...TURNER AND
SOUTHEASTERN HUTCHINSON COUNTIES...
At 336 PM CDT, a severe thunderstorm was located 7 miles east of
Menno, or 20 miles southwest of Parker, moving east at 50 mph.
HAZARD...80 mph wind gusts and golf ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Viborg, Hurley and Centerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
For your protection move to an interior room on the lowest floor of a
building.
This is a potentially deadly storm. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
&&
LAT...LON 4292 9767 4328 9771 4350 9713 4302 9691
TIME...MOT...LOC 2036Z 264DEG 42KT 4320 9744
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Weisser
Action: Continued Issued At: 2026-05-17 16:02:29
896
WWUS53 KFSD 172101
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
401 PM CDT Sun May 17 2026
SDC009-067-135-172111-
/O.CAN.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Bon Homme SD-Yankton SD-Hutchinson SD-
401 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BON HOMME...
YANKTON AND SOUTHEASTERN HUTCHINSON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
&&
LAT...LON 4316 9717 4317 9739 4340 9741 4350 9713
4302 9691 4299 9717
TIME...MOT...LOC 2101Z 249DEG 39KT 4330 9709
$$
SDC027-125-172115-
/O.CON.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Clay SD-Turner SD-
401 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHWESTERN CLAY AND TURNER COUNTIES...
At 401 PM CDT, a severe thunderstorm was located over Hurley, or 7
miles south of Parker, moving east at 45 mph.
HAZARD...80 mph wind gusts and golf ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Parker, Centerville, Marion, Viborg, Irene, Hurley, and Wakonda.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
For your protection move to an interior room on the lowest floor of a
building.
This is a potentially deadly storm. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
&&
LAT...LON 4316 9717 4317 9739 4340 9741 4350 9713
4302 9691 4299 9717
TIME...MOT...LOC 2101Z 249DEG 39KT 4330 9709
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Weisser
Action: Cancelled Issued At: 2026-05-17 16:02:29
896
WWUS53 KFSD 172101
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
401 PM CDT Sun May 17 2026
SDC009-067-135-172111-
/O.CAN.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Bon Homme SD-Yankton SD-Hutchinson SD-
401 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BON HOMME...
YANKTON AND SOUTHEASTERN HUTCHINSON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
&&
LAT...LON 4316 9717 4317 9739 4340 9741 4350 9713
4302 9691 4299 9717
TIME...MOT...LOC 2101Z 249DEG 39KT 4330 9709
$$
SDC027-125-172115-
/O.CON.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Clay SD-Turner SD-
401 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHWESTERN CLAY AND TURNER COUNTIES...
At 401 PM CDT, a severe thunderstorm was located over Hurley, or 7
miles south of Parker, moving east at 45 mph.
HAZARD...80 mph wind gusts and golf ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Parker, Centerville, Marion, Viborg, Irene, Hurley, and Wakonda.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
For your protection move to an interior room on the lowest floor of a
building.
This is a potentially deadly storm. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
&&
LAT...LON 4316 9717 4317 9739 4340 9741 4350 9713
4302 9691 4299 9717
TIME...MOT...LOC 2101Z 249DEG 39KT 4330 9709
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Weisser
Action: Expired Issued At: 2026-05-17 16:08:59
003
WWUS53 KFSD 172108
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
408 PM CDT Sun May 17 2026
SDC027-125-172118-
/O.EXP.KFSD.SV.W.0039.000000T0000Z-260517T2115Z/
Clay SD-Turner SD-
408 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CLAY AND TURNER
COUNTIES WILL EXPIRE AT 415 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However, small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
South Dakota.
&&
LAT...LON 4316 9717 4317 9739 4340 9741 4350 9713
4302 9691 4299 9717
TIME...MOT...LOC 2108Z 268DEG 35KT 4328 9702
$$
Weisser
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