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Home Return to list Severe Thunderstorm Warning 0208 Issued by the Sioux Falls Forecast Office
Action: New Issued At: 2026-08-07 02:23:22
737
WUUS53 KFSD 070722
SVRFSD
SDC053-070815-
/O.NEW.KFSD.SV.W.0208.260807T0722Z-260807T0815Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
222 AM CDT Fri Aug 7 2026
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
South central Gregory County in south central South Dakota...
* Until 315 AM CDT.
* At 222 AM CDT, a severe thunderstorm was located over St. Charles,
or 25 miles northwest of Spencer, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and half dollar 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...
Bonesteel around 230 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.
&&
LAT...LON 4321 9911 4310 9873 4300 9874 4300 9908
4312 9918
TIME...MOT...LOC 0722Z 302DEG 20KT 4313 9907
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Continued Issued At: 2026-08-07 02:29:22
948
WWUS53 KFSD 070728
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
228 AM CDT Fri Aug 7 2026
SDC053-070815-
/O.CON.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
228 AM CDT Fri Aug 7 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTH CENTRAL GREGORY COUNTY...
At 228 AM CDT, a severe thunderstorm was located near St. Charles, or
21 miles northwest of Spencer, moving southeast at 30 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
Bonesteel around 235 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4316 9904 4301 9875 4300 9874 4300 9906
4309 9914
TIME...MOT...LOC 0728Z 310DEG 24KT 4308 9903
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Continued Issued At: 2026-08-07 02:39:22
163
WWUS53 KFSD 070739
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
239 AM CDT Fri Aug 7 2026
SDC053-070815-
/O.CON.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
239 AM CDT Fri Aug 7 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTHEASTERN GREGORY COUNTY...
At 238 AM CDT, a severe thunderstorm was located over Bonesteel, or
17 miles northwest of Spencer, moving southeast at 30 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 remain over mainly rural areas of
southeastern Gregory County, including the following locations...
Fairfax.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4301 9875 4300 9874 4300 9898 4305 9904
4312 9896
TIME...MOT...LOC 0738Z 310DEG 24KT 4304 9896
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Cancelled Issued At: 2026-08-07 02:51:23
514
WWUS53 KFSD 070750
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
250 AM CDT Fri Aug 7 2026
SDC053-070800-
/O.CAN.KFSD.SV.W.0208.000000T0000Z-260807T0815Z/
Gregory SD-
250 AM CDT Fri Aug 7 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GREGORY COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However, small hail and
heavy rain are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
&&
LAT...LON 4301 9875 4300 9874 4300 9898 4305 9904
4312 9896
TIME...MOT...LOC 0748Z 302DEG 20KT 4300 9888
$$
IG
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