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Home Return to list Severe Thunderstorm Warning 0281 Issued by the Rapid City Forecast Office
Action: New Issued At: 2026-08-12 15:26:23
953
WUUS53 KUNR 122026
SVRUNR
SDC033-103-WYC045-122115-
/O.NEW.KUNR.SV.W.0281.260812T2026Z-260812T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
226 PM MDT Wed Aug 12 2026
The National Weather Service in Rapid City has issued a
* Severe Thunderstorm Warning for...
Western Custer County in southwestern South Dakota...
Southwestern Pennington County in west central South Dakota...
Southeastern Weston County in northeastern Wyoming...
* Until 315 PM MDT.
* At 226 PM MDT, a severe thunderstorm was located 9 miles south of
Newcastle, moving east at 40 mph.
HAZARD...Two inch 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.
* Locations impacted include...
Newcastle, Custer, Hill City, Pringle, Argyle, Jewel Cave National
Monument, Elk Mountain Lookout, Bear Mountain Lookout, Medicine
Mountain, Crazy Horse Memorial, Sylvan Lake, Black Elk Peak and
Palmer Gulch Resort.
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 and damaging winds.
&&
LAT...LON 4360 10442 4382 10442 4397 10353 4351 10353
TIME...MOT...LOC 2025Z 271DEG 35KT 4373 10425
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 15:38:53
351
WWUS53 KUNR 122038
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
238 PM MDT Wed Aug 12 2026
SDC033-103-WYC045-122115-
/O.CON.KUNR.SV.W.0281.000000T0000Z-260812T2115Z/
Custer SD-Pennington SD-Weston WY-
238 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM MDT FOR
WESTERN CUSTER, SOUTHWESTERN PENNINGTON AND SOUTHEASTERN WESTON
COUNTIES...
At 238 PM MDT, a severe thunderstorm was located over Elk Mountain
Lookout, or 11 miles southeast of Newcastle, moving east at 40 mph.
HAZARD...Tennis ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Newcastle, Custer, Hill City, Pringle, Argyle, Jewel Cave National
Monument, Elk Mountain Lookout, Bear Mountain Lookout, Medicine
Mountain, Crazy Horse Memorial, Sylvan Lake, Black Elk Peak and
Palmer Gulch Resort.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail and damaging winds.
&&
LAT...LON 4359 10432 4384 10432 4397 10353 4351 10353
TIME...MOT...LOC 2026Z 271DEG 35KT 4373 10424
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 15:56:54
828
WWUS53 KUNR 122056
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
256 PM MDT Wed Aug 12 2026
SDC033-103-WYC045-122115-
/O.CON.KUNR.SV.W.0281.000000T0000Z-260812T2115Z/
Custer SD-Pennington SD-Weston WY-
256 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM MDT FOR
WESTERN CUSTER, SOUTHWESTERN PENNINGTON AND EAST CENTRAL WESTON
COUNTIES...
At 256 PM MDT, a severe thunderstorm was located over Jewel Cave
National Monument, or 12 miles west of Custer, moving east at 40 mph.
HAZARD...Tennis 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.
Locations impacted include...
Custer, Hill City, Pringle, Argyle, Jewel Cave National Monument,
Bear Mountain Lookout, Medicine Mountain, Crazy Horse Memorial, Elk
Mountain Lookout, Sylvan Lake, Black Elk Peak and Palmer Gulch
Resort.
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 and damaging winds.
&&
LAT...LON 4357 10414 4387 10415 4397 10353 4351 10353
TIME...MOT...LOC 2038Z 271DEG 35KT 4372 10406
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 16:07:24
175
WWUS53 KUNR 122107
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
307 PM MDT Wed Aug 12 2026
SDC033-103-WYC045-122115-
/O.CON.KUNR.SV.W.0281.000000T0000Z-260812T2115Z/
Custer SD-Pennington SD-Weston WY-
307 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM MDT FOR
WESTERN CUSTER, SOUTHWESTERN PENNINGTON AND EAST CENTRAL WESTON
COUNTIES...
At 307 PM MDT, a severe thunderstorm was located 6 miles southwest of
Custer, moving east at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Custer, Pringle, Argyle, Jewel Cave National Monument, Bear
Mountain Lookout, Crazy Horse Memorial, Elk Mountain Lookout,
Sylvan Lake, Black Elk Peak and Palmer Gulch Resort.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
&&
LAT...LON 4356 10407 4383 10407 4391 10353 4351 10353
TIME...MOT...LOC 2056Z 272DEG 35KT 4372 10382
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Expired Issued At: 2026-08-12 16:14:55 546 WWUS53 KUNR 122114 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 314 PM MDT Wed Aug 12 2026 SDC033-103-WYC045-122124- /O.EXP.KUNR.SV.W.0281.000000T0000Z-260812T2115Z/ Custer SD-Pennington SD-Weston WY- 314 PM MDT Wed Aug 12 2026 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 315 PM MDT FOR WESTERN CUSTER, SOUTHWESTERN PENNINGTON AND EAST CENTRAL WESTON COUNTIES... The Severe Thunderstorm Warning that was previously in effect has been reissued for Weston, Custer, and Pennington Counties and is in effect until 400 PM MDT. Please refer to that bulletin for the latest severe weather information. A Severe Thunderstorm Watch remains in effect until 800 PM MDT Wednesday for portions of South Dakota and northeast Wyoming. && LAT...LON 4356 10407 4383 10407 4391 10353 4351 10353 TIME...MOT...LOC 2107Z 272DEG 35KT 4371 10368 $$ Schultz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||