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Severe Thunderstorm Warning 0254
Issued by the Rapid City Forecast Office

Action Issued Starts Expiration
New 2026-08-11 15:04:51 2026-08-11 15:04:00 2026-08-11 16:00:00
Continued 2026-08-11 15:15:51 2026-08-11 16:00:00
Continued 2026-08-11 15:24:51 2026-08-11 16:00:00
Cancelled 2026-08-11 15:46:22 2026-08-11 16:00:00


Action: New
Issued At: 2026-08-11 15:04:51

963 
WUUS53 KUNR 112004
SVRUNR
SDC081-093-103-112100-
/O.NEW.KUNR.SV.W.0254.260811T2004Z-260811T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
204 PM MDT Tue Aug 11 2026

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for...
  Southeastern Lawrence County in west central South Dakota...
  Southwestern Meade County in west central South Dakota...
  West Central Pennington County in west central South Dakota...

* Until 300 PM MDT.

* At 204 PM MDT, a severe thunderstorm was located over Roubaix Lake,
  or 14 miles southeast of Lead, moving southeast at 10 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...
  Nemo, Silver City, Pactola Reservoir, Dalton Lake and Roubaix Lake.

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.

Very heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4418 10371 4424 10367 4426 10359 4425 10346
      4415 10335 4400 10361
TIME...MOT...LOC 2004Z 317DEG 7KT 4419 10361

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: Continued
Issued At: 2026-08-11 15:15:51

427 
WWUS53 KUNR 112015
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
215 PM MDT Tue Aug 11 2026

SDC081-093-103-112100-
/O.CON.KUNR.SV.W.0254.000000T0000Z-260811T2100Z/
Lawrence SD-Meade SD-Pennington SD-
215 PM MDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT FOR
SOUTHEASTERN LAWRENCE, SOUTHWESTERN MEADE AND WEST CENTRAL PENNINGTON
COUNTIES...

At 215 PM MDT, a severe thunderstorm was located over Nemo, or 16
miles southeast of Lead, moving southeast at 10 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...
  Nemo, Silver City, Pactola Reservoir and Dalton Lake.

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 4417 10370 4424 10351 4425 10346 4415 10335
      4400 10361
TIME...MOT...LOC 2004Z 307DEG 9KT 4419 10359

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 15:24:51

545 
WWUS53 KUNR 112024
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
224 PM MDT Tue Aug 11 2026

SDC081-093-103-112100-
/O.CON.KUNR.SV.W.0254.000000T0000Z-260811T2100Z/
Lawrence SD-Meade SD-Pennington SD-
224 PM MDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT FOR
SOUTHEASTERN LAWRENCE, SOUTHWESTERN MEADE AND CENTRAL PENNINGTON
COUNTIES...

At 224 PM MDT, a severe thunderstorm was located near Nemo, or 13
miles northwest of Rapid City, moving southeast at 20 mph.

HAZARD...Two inch hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect damage
         to roofs, siding, windows, and vehicles.

Locations impacted include...
  Nemo, Silver City and Pactola 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
dangerous hail.

&&

LAT...LON 4413 10360 4424 10345 4415 10335 4404 10354
TIME...MOT...LOC 2015Z 308DEG 15KT 4417 10353

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

SE


Action: Cancelled
Issued At: 2026-08-11 15:46:22

352 
WWUS53 KUNR 112046
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
246 PM MDT Tue Aug 11 2026

SDC081-093-103-112056-
/O.CAN.KUNR.SV.W.0254.000000T0000Z-260811T2100Z/
Lawrence SD-Meade SD-Pennington SD-
246 PM MDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN
LAWRENCE, SOUTHWESTERN MEADE AND CENTRAL PENNINGTON COUNTIES...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, small hail and
heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT
Tuesday for a portion of west central South Dakota.

&&

LAT...LON 4413 10360 4424 10345 4415 10335 4404 10354
TIME...MOT...LOC 2024Z 308DEG 15KT 4414 10349

$$

SE



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