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NWS Cheyenne WYSV.W 0328September 5, 2026

Severe Thunderstorm Warning: Box Butte and Morrill, NE

The National Weather Service office in Cheyenne issued a severe thunderstorm warning for Box Butte and Morrill in Nebraska, which was in force until 5:30 p.m. local time on September 5. It was the 328th severe thunderstorm warning the NWS office in Cheyenne issued in 2026. Nebraska had 119 severe thunderstorm warnings in September 2026, against 51 in an average September of 2008-2025 (Nebraska's severe thunderstorm warnings by year).

ExpiredWarning

Issued4:57 p.m. MDT, September 5, 2026
In force4:57 p.m. MDT, September 5, 2026
Expired5:30 p.m. MDT, September 5, 2026

In force for 33 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Cheyenne WY
Area
Box Butte and Morrill
State
Nebraska
Level
Warning
Issued
4:57 p.m. MDT, September 5, 2026
Expires
5:30 p.m. MDT, September 5, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KCYS SV.W 0328
Official source
National Weather Service: the notice at its source

Severe Thunderstorm Warnings in Nebraska since 2008Every warning type in Nebraska

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SVRCYS The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southeastern Box Butte County in the Panhandle of Nebraska... North central Morrill County in the Panhandle of Nebraska... * Until 530 PM MDT. * At 457 PM MDT, a severe thunderstorm was located near Alliance, moving southeast at 5 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Alliance and Alliance Municipal Airport.

What the agency told people to do

For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice