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Home Return to list Severe Thunderstorm Warning 0282 Issued by the Rapid City Forecast Office
Action: New Issued At: 2026-08-12 16:14:24
538
WUUS53 KUNR 122114
SVRUNR
SDC033-047-103-WYC045-122200-
/O.NEW.KUNR.SV.W.0282.260812T2114Z-260812T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
314 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...
Northwestern Fall River County in southwestern South Dakota...
Southwestern Pennington County in west central South Dakota...
Southeastern Weston County in northeastern Wyoming...
* Until 400 PM MDT.
* At 314 PM MDT, a severe thunderstorm was located over Dewey, or 20
miles northwest of Edgemont, moving east 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.
* Locations impacted include...
Hot Springs, Custer, Dewey, Pringle, Argyle, Jewel Cave National
Monument, Crazy Horse Memorial, Elk Mountain Lookout, Burdock,
Cottonwood Springs Dam, Stockade Lake, Sylvan Lake, Blue Bell,
Mount Coolidge, Black Elk Peak, Cold Brook Reservoir, western Wind
Cave National Park, Palmer Gulch Resort and western Custer State
Park.
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 4350 10422 4378 10422 4393 10347 4336 10346
4341 10405 4350 10405
TIME...MOT...LOC 2113Z 268DEG 25KT 4352 10409
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Cancelled Issued At: 2026-08-12 16:24:55
712
WWUS53 KUNR 122124
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
324 PM MDT Wed Aug 12 2026
SDC103-122134-
/O.CAN.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Pennington SD-
324 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHWESTERN
PENNINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, small hail and
gusty winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT
Wednesday for a portion of west central South Dakota.
&&
LAT...LON 4350 10413 4376 10413 4386 10355 4386 10347
4336 10346 4341 10405 4350 10405
TIME...MOT...LOC 2114Z 268DEG 25KT 4352 10408
$$
SDC033-047-WYC045-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-Weston WY-
324 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
WESTERN CUSTER, NORTHWESTERN FALL RIVER AND SOUTHEASTERN WESTON
COUNTIES...
At 324 PM MDT, a severe thunderstorm was located over Dewey, or 17
miles northwest of Edgemont, moving east at 30 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...
Hot Springs, Custer, Dewey, Pringle, Argyle, Jewel Cave National
Monument, Crazy Horse Memorial, Cottonwood Springs Dam, Burdock,
Stockade Lake, Elk Mountain Lookout, Blue Bell, Cold Brook
Reservoir, Sylvan Lake, Mount Coolidge, western Wind Cave National
Park and western 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 and damaging winds.
&&
LAT...LON 4350 10413 4376 10413 4386 10355 4386 10347
4336 10346 4341 10405 4350 10405
TIME...MOT...LOC 2114Z 268DEG 25KT 4352 10408
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 16:24:55
712
WWUS53 KUNR 122124
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
324 PM MDT Wed Aug 12 2026
SDC103-122134-
/O.CAN.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Pennington SD-
324 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHWESTERN
PENNINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, small hail and
gusty winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT
Wednesday for a portion of west central South Dakota.
&&
LAT...LON 4350 10413 4376 10413 4386 10355 4386 10347
4336 10346 4341 10405 4350 10405
TIME...MOT...LOC 2114Z 268DEG 25KT 4352 10408
$$
SDC033-047-WYC045-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-Weston WY-
324 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
WESTERN CUSTER, NORTHWESTERN FALL RIVER AND SOUTHEASTERN WESTON
COUNTIES...
At 324 PM MDT, a severe thunderstorm was located over Dewey, or 17
miles northwest of Edgemont, moving east at 30 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...
Hot Springs, Custer, Dewey, Pringle, Argyle, Jewel Cave National
Monument, Crazy Horse Memorial, Cottonwood Springs Dam, Burdock,
Stockade Lake, Elk Mountain Lookout, Blue Bell, Cold Brook
Reservoir, Sylvan Lake, Mount Coolidge, western Wind Cave National
Park and western 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 and damaging winds.
&&
LAT...LON 4350 10413 4376 10413 4386 10355 4386 10347
4336 10346 4341 10405 4350 10405
TIME...MOT...LOC 2114Z 268DEG 25KT 4352 10408
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 16:34:55
088
WWUS53 KUNR 122134
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
334 PM MDT Wed Aug 12 2026
WYC045-122144-
/O.CAN.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Weston WY-
334 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN WESTON
COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, gusty winds are
still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT
Wednesday for a portion of northeast Wyoming.
&&
LAT...LON 4348 10405 4369 10405 4386 10356 4386 10347
4336 10346 4341 10405
TIME...MOT...LOC 2124Z 268DEG 25KT 4352 10397
$$
SDC033-047-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-
334 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
WESTERN CUSTER AND NORTHWESTERN FALL RIVER COUNTIES...
At 334 PM MDT, a severe thunderstorm was located 7 miles northeast of
Burdock, or 16 miles north of Edgemont, moving east at 30 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...
Hot Springs, Custer, Dewey, Pringle, Argyle, Jewel Cave National
Monument, Cottonwood Springs Dam, Crazy Horse Memorial, Cold Brook
Reservoir, Stockade Lake, Blue Bell, western Wind Cave National
Park, Mount Coolidge, Burdock, Sylvan Lake and western 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 and damaging winds.
&&
LAT...LON 4348 10405 4369 10405 4386 10356 4386 10347
4336 10346 4341 10405
TIME...MOT...LOC 2124Z 268DEG 25KT 4352 10397
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Cancelled Issued At: 2026-08-12 16:34:55
088
WWUS53 KUNR 122134
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
334 PM MDT Wed Aug 12 2026
WYC045-122144-
/O.CAN.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Weston WY-
334 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN WESTON
COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, gusty winds are
still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT
Wednesday for a portion of northeast Wyoming.
&&
LAT...LON 4348 10405 4369 10405 4386 10356 4386 10347
4336 10346 4341 10405
TIME...MOT...LOC 2124Z 268DEG 25KT 4352 10397
$$
SDC033-047-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-
334 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
WESTERN CUSTER AND NORTHWESTERN FALL RIVER COUNTIES...
At 334 PM MDT, a severe thunderstorm was located 7 miles northeast of
Burdock, or 16 miles north of Edgemont, moving east at 30 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...
Hot Springs, Custer, Dewey, Pringle, Argyle, Jewel Cave National
Monument, Cottonwood Springs Dam, Crazy Horse Memorial, Cold Brook
Reservoir, Stockade Lake, Blue Bell, western Wind Cave National
Park, Mount Coolidge, Burdock, Sylvan Lake and western 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 and damaging winds.
&&
LAT...LON 4348 10405 4369 10405 4386 10356 4386 10347
4336 10346 4341 10405
TIME...MOT...LOC 2124Z 268DEG 25KT 4352 10397
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 16:43:25
450
WWUS53 KUNR 122143
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
343 PM MDT Wed Aug 12 2026
SDC033-047-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-
343 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
WESTERN CUSTER AND NORTHWESTERN FALL RIVER COUNTIES...
At 343 PM MDT, a severe thunderstorm was located 7 miles west of
Argyle, or 16 miles north of Edgemont, moving east at 30 mph.
HAZARD...Tennis ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Hot Springs, Custer, Dewey, Pringle, Argyle, Cottonwood Springs
Dam, Cold Brook Reservoir, Blue Bell, western Wind Cave National
Park, Stockade Lake, Mount Coolidge, Burdock and western Custer
State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail and damaging winds.
&&
LAT...LON 4348 10405 4361 10405 4377 10372 4385 10347
4336 10346 4341 10405
TIME...MOT...LOC 2134Z 268DEG 25KT 4352 10388
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 16:50:55
640
WWUS53 KUNR 122150
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
350 PM MDT Wed Aug 12 2026
SDC033-047-122200-
/O.CON.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/
Custer SD-Fall River SD-
350 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 4 PM MDT FOR
SOUTHWESTERN CUSTER AND NORTHWESTERN FALL RIVER COUNTIES...
At 350 PM MDT, a severe thunderstorm was located near Argyle, or 14
miles northwest of Hot Springs, moving east at 30 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...
Hot Springs, Pringle, Argyle, Cottonwood Springs Dam, Cold Brook
Reservoir, western Wind Cave National Park, Blue Bell and Burdock.
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 4341 10405 4359 10383 4374 10347 4336 10346
TIME...MOT...LOC 2143Z 268DEG 25KT 4353 10380
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Expired Issued At: 2026-08-12 17:00:56 953 WWUS53 KUNR 122200 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 400 PM MDT Wed Aug 12 2026 SDC033-047-122210- /O.EXP.KUNR.SV.W.0282.000000T0000Z-260812T2200Z/ Custer SD-Fall River SD- 400 PM MDT Wed Aug 12 2026 ...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR SOUTHWESTERN CUSTER AND NORTHWESTERN FALL RIVER COUNTIES... The Severe Thunderstorm Warning that was previously in effect has been reissued for Fall River and Custer Counties and is in effect until 430 PM MDT. Please refer to that bulletin for the latest severe weather information. However, gusty winds are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a portion of southwest South Dakota. && LAT...LON 4341 10405 4359 10383 4374 10347 4336 10346 TIME...MOT...LOC 2150Z 268DEG 25KT 4353 10372 $$ Schultz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||