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Home Return to list Severe Thunderstorm Warning 0286 Issued by the Rapid City Forecast Office
Action: New Issued At: 2026-08-12 17:27:57
689
WUUS53 KUNR 122227
SVRUNR
SDC033-047-102-122300-
/O.NEW.KUNR.SV.W.0286.260812T2227Z-260812T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
427 PM MDT Wed Aug 12 2026
The National Weather Service in Rapid City has issued a
* Severe Thunderstorm Warning for...
South Central Custer County in southwestern South Dakota...
Northeastern Fall River County in southwestern South Dakota...
West Central Oglala Lakota County in southwestern South Dakota...
* Until 500 PM MDT.
* At 427 PM MDT, a severe thunderstorm was located over Hot Springs,
moving east at 25 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Hot Springs, Oral, Buffalo Gap, Smithwick, Maverick Junction, Hay
Canyon Butte, Angostura Reservoir, Cold Brook Reservoir and
Cottonwood Springs Dam.
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
widespread damaging winds and dangerous hail.
If on or near Angostura Reservoir, get away from the water and move
indoors or inside a vehicle. Remember, lightning can strike out to 15
miles from the parent thunderstorm. If you can hear thunder, you are
close enough to be struck by lightning. Move to safe shelter now! Do
not be caught on the water in a thunderstorm.
&&
LAT...LON 4337 10363 4352 10353 4353 10290 4315 10306
TIME...MOT...LOC 2226Z 280DEG 20KT 4342 10347
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 17:36:57
003
WWUS53 KUNR 122236
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
436 PM MDT Wed Aug 12 2026
SDC033-047-102-122300-
/O.CON.KUNR.SV.W.0286.000000T0000Z-260812T2300Z/
Custer SD-Fall River SD-Oglala Lakota SD-
436 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
SOUTH CENTRAL CUSTER, NORTHEASTERN FALL RIVER AND WEST CENTRAL OGLALA
LAKOTA COUNTIES...
At 436 PM MDT, a severe thunderstorm was located over Maverick
Junction, or near Hot Springs, moving east at 25 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Hot Springs, Oral, Buffalo Gap, Smithwick, Hay Canyon Butte,
Maverick Junction, Angostura Reservoir and Cold Brook Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
widespread damaging winds and dangerous hail.
If on or near Angostura Reservoir, get away from the water and move
indoors or inside a vehicle. Remember, lightning can strike out to 15
miles from the parent thunderstorm. If you can hear thunder, you are
close enough to be struck by lightning. Move to safe shelter now! Do
not be caught on the water in a thunderstorm.
&&
LAT...LON 4336 10357 4352 10345 4353 10290 4315 10306
TIME...MOT...LOC 2227Z 280DEG 20KT 4342 10346
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Schultz
Action: Continued Issued At: 2026-08-12 17:46:57
318
WWUS53 KUNR 122246
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
446 PM MDT Wed Aug 12 2026
SDC033-047-102-122300-
/O.CON.KUNR.SV.W.0286.000000T0000Z-260812T2300Z/
Custer SD-Fall River SD-Oglala Lakota SD-
446 PM MDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR
SOUTH CENTRAL CUSTER, NORTHEASTERN FALL RIVER AND WEST CENTRAL OGLALA
LAKOTA COUNTIES...
At 446 PM MDT, a severe thunderstorm was located over Oral, or 8
miles east of Hot Springs, moving east 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.
Locations impacted include...
Oral, Smithwick, Hay Canyon Butte, Maverick Junction and Angostura
Reservoir.
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
widespread damaging winds and dangerous hail.
If on or near Angostura Reservoir, get away from the water and move
indoors or inside a vehicle. Remember, lightning can strike out to 15
miles from the parent thunderstorm. If you can hear thunder, you are
close enough to be struck by lightning. Move to safe shelter now! Do
not be caught on the water in a thunderstorm.
&&
LAT...LON 4333 10351 4348 10341 4350 10291 4315 10306
TIME...MOT...LOC 2236Z 280DEG 20KT 4341 10339
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schultz
Action: Expired Issued At: 2026-08-12 17:58:27 696 WWUS53 KUNR 122258 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 458 PM MDT Wed Aug 12 2026 SDC033-047-102-122308- /O.EXP.KUNR.SV.W.0286.000000T0000Z-260812T2300Z/ Custer SD-Fall River SD-Oglala Lakota SD- 458 PM MDT Wed Aug 12 2026 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 5 PM MDT FOR SOUTH CENTRAL CUSTER, NORTHEASTERN FALL RIVER AND WEST CENTRAL OGLALA LAKOTA COUNTIES... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail and gusty winds are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a portion of southwest South Dakota. && LAT...LON 4333 10351 4348 10341 4350 10291 4315 10306 TIME...MOT...LOC 2246Z 280DEG 20KT 4340 10331 $$ Schultz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||