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Home Return to list Severe Thunderstorm Warning 0257 Issued by the Rapid City Forecast Office
Action: New Issued At: 2026-08-11 17:05:24
777
WUUS53 KUNR 112204
SVRUNR
SDC033-103-112300-
/O.NEW.KUNR.SV.W.0257.260811T2204Z-260811T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
404 PM MDT Tue Aug 11 2026
The National Weather Service in Rapid City has issued a
* Severe Thunderstorm Warning for...
Eastern Custer County in southwestern South Dakota...
South Central Pennington County in west central South Dakota...
* Until 500 PM MDT.
* At 404 PM MDT, a severe thunderstorm was located over State Game
Lodge, or 11 miles east of Custer, moving southeast at 20 mph.
HAZARD...Golf ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
* Locations impacted include...
Hermosa, Keystone, Fairburn, Hayward, State Game Lodge, Black Hills
Playhouse, Center Lake, northeastern Custer State Park, Legion Lake
and Mount Rushmore National Memorial.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail.
&&
LAT...LON 4382 10352 4388 10350 4393 10331 4379 10294
4355 10326
TIME...MOT...LOC 2203Z 308DEG 15KT 4381 10338
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Cancelled Issued At: 2026-08-11 17:13:54
003
WWUS53 KUNR 112213
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
413 PM MDT Tue Aug 11 2026
SDC103-112223-
/O.CAN.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Pennington SD-
413 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL
PENNINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a
portion of west central South Dakota.
&&
LAT...LON 4380 10350 4385 10346 4385 10328 4379 10294
4355 10326
TIME...MOT...LOC 2204Z 308DEG 15KT 4381 10338
$$
SDC033-112300-
/O.CON.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Custer SD-
413 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
EASTERN CUSTER COUNTY...
At 413 PM MDT, a severe thunderstorm was located over State Game
Lodge, or 13 miles east of Custer, moving southeast at 20 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Fairburn, State Game Lodge, northeastern Custer State Park, Black
Hills Playhouse, Center Lake and Legion Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing large hail.
&&
LAT...LON 4380 10350 4385 10346 4385 10328 4379 10294
4355 10326
TIME...MOT...LOC 2204Z 308DEG 15KT 4381 10338
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 17:13:54
003
WWUS53 KUNR 112213
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
413 PM MDT Tue Aug 11 2026
SDC103-112223-
/O.CAN.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Pennington SD-
413 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL
PENNINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a
portion of west central South Dakota.
&&
LAT...LON 4380 10350 4385 10346 4385 10328 4379 10294
4355 10326
TIME...MOT...LOC 2204Z 308DEG 15KT 4381 10338
$$
SDC033-112300-
/O.CON.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Custer SD-
413 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
EASTERN CUSTER COUNTY...
At 413 PM MDT, a severe thunderstorm was located over State Game
Lodge, or 13 miles east of Custer, moving southeast at 20 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Fairburn, State Game Lodge, northeastern Custer State Park, Black
Hills Playhouse, Center Lake and Legion Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing large hail.
&&
LAT...LON 4380 10350 4385 10346 4385 10328 4379 10294
4355 10326
TIME...MOT...LOC 2204Z 308DEG 15KT 4381 10338
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 17:29:09
402
WWUS53 KUNR 112228
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
428 PM MDT Tue Aug 11 2026
SDC033-112300-
/O.CON.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Custer SD-
428 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
CENTRAL CUSTER COUNTY...
At 428 PM MDT, a severe thunderstorm was located over Buffalo
Corrals, or 14 miles southeast of Custer, moving southeast at 15 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Fairburn, State Game Lodge and southeastern Custer State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing large hail.
&&
LAT...LON 4374 10344 4379 10336 4371 10304 4355 10326
TIME...MOT...LOC 2213Z 324DEG 14KT 4373 10339
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 17:36:40
610
WWUS53 KUNR 112235
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
435 PM MDT Tue Aug 11 2026
SDC033-112300-
/O.CON.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Custer SD-
435 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
CENTRAL CUSTER COUNTY...
At 435 PM MDT, a severe thunderstorm was located over Buffalo
Corrals, or 15 miles southeast of Custer, moving southeast at 20 mph.
HAZARD...Tennis ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Fairburn and southeastern Custer State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail.
&&
LAT...LON 4371 10341 4377 10331 4371 10304 4355 10326
TIME...MOT...LOC 2228Z 311DEG 17KT 4369 10336
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 17:48:55
073
WWUS53 KUNR 112248
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
448 PM MDT Tue Aug 11 2026
SDC033-112300-
/O.CON.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/
Custer SD-
448 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
CENTRAL CUSTER COUNTY...
At 448 PM MDT, a severe thunderstorm was located near Fairburn, or 17
miles northeast of Hot Springs, moving southeast at 20 mph.
THIS IS A DESTRUCTIVE STORM FOR SOUTH DAKTOTA HIGHWAY 79, 4 MILES
SOUTHWEST OF FAIRBURN.
HAZARD...Baseball size hail.
SOURCE...Trained spotters reported.
IMPACT...People and animals outdoors will be severely injured. Expect
shattered windows, extensive damage to roofs, siding, and
vehicles.
Locations impacted include...
Fairburn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm has produced destructive hail.
&&
LAT...LON 4366 10337 4373 10327 4369 10306 4355 10326
TIME...MOT...LOC 2235Z 311DEG 17KT 4367 10332
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...2.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
SE
Action: Expired Issued At: 2026-08-11 17:59:55 456 WWUS53 KUNR 112259 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 459 PM MDT Tue Aug 11 2026 SDC033-112309- /O.EXP.KUNR.SV.W.0257.000000T0000Z-260811T2300Z/ Custer SD- 459 PM MDT Tue Aug 11 2026 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 5 PM MDT FOR CENTRAL CUSTER COUNTY... The Severe Thunderstorm Warning that was previously in effect has been reissued for Custer County and is in effect until 600 PM MDT. Please refer to that bulletin for the latest severe weather information. A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a portion of southwest South Dakota. && LAT...LON 4366 10337 4373 10327 4369 10306 4355 10326 TIME...MOT...LOC 2248Z 311DEG 17KT 4363 10326 $$ SE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||