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Ended official alertUpdated

Severe Thunderstorm Warning for Cheyenne, NE; Morrill, NE

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

Official alert fields

What you need to know

Applies to
Cheyenne, Morrill
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 805 PM MDT, a severe thunderstorm was located 11 miles north of Potter, or 22 miles northwest of Sidney, moving south at 40 mph. THIS IS A DESTRUCTIVE STORM FOR NORTHWESTERN CHEYENNE COUNTY. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be...

What the bulletin says to do

Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. This is a dangerous storm. Prepare immediately for large destructive hail capable of producing significant damage. People outside should move to a shelter, inside a strong building and away from windows. This thunderstorm is capable of producing all types of severe weather including extremely large hail, destructive straight line winds and tornadoes. Move quickly to a safe shelter, such as an interior room, a bathroom or closet or basement.

Read official NWS bulletin

Full official description

Bulletin details

At 805 PM MDT, a severe thunderstorm was located 11 miles north of Potter, or 22 miles northwest of Sidney, moving south at 40 mph. THIS IS A DESTRUCTIVE STORM FOR NORTHWESTERN CHEYENNE COUNTY. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Potter and Brownson.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued August 21 at 8:05PM MDT until August 21 at 8:15PM MDT by NWS Cheyenne WY

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued August 21 at 7:34PM MDT until August 21 at 8:15PM MDT by NWS Cheyenne WY

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Cheyenne WY. 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