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Ended official alertUpdated

Severe Thunderstorm Warning for Custer, SD; Pennington, SD; Weston, WY

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

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...

What the bulletin says to do

Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

Read official NWS bulletin

Full official description

Bulletin details

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.

Lifecycle record

Official revisions

4 captured
  1. Update

    Severe Thunderstorm Warning issued August 12 at 3:07PM MDT until August 12 at 3:15PM MDT by NWS Rapid City SD

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 12 at 2:56PM MDT until August 12 at 3:15PM MDT by NWS Rapid City SD

    Official revision
  3. Update

    Severe Thunderstorm Warning issued August 12 at 2:38PM MDT until August 12 at 3:15PM MDT by NWS Rapid City SD

    Official revision
  4. Alert

    Severe Thunderstorm Warning issued August 12 at 2:26PM MDT until August 12 at 3:15PM MDT by NWS Rapid City SD

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Rapid City SD. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections