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NWS Cheyenne WYFF.W 0025September 5, 2026

Flash Flood Warning: Box Butte, NE

The National Weather Service office in Cheyenne issued a flash flood warning for Box Butte in Nebraska, which was in force until 8:00 p.m. local time on September 5. It was the 25th flash flood warning the NWS office in Cheyenne issued in 2026. Nebraska had 9 flash flood warnings in September 2026, against 4 in an average September of 2008-2025 (Nebraska's flash flood warnings by year).

ExpiredWarning

Issued5:07 p.m. MDT, September 5, 2026
In force5:07 p.m. MDT, September 5, 2026
Expired8:00 p.m. MDT, September 5, 2026

In force for 2.9 hours; 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
State
Nebraska
Level
Warning
Issued
5:07 p.m. MDT, September 5, 2026
Expires
8:00 p.m. MDT, September 5, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KCYS FF.W 0025
Official source
National Weather Service: the notice at its source

Flash Flood 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

FFWCYS The National Weather Service in Cheyenne has issued a * Flash Flood Warning for... Southeastern Box Butte County in the panhandle of Nebraska... * Until 800 PM MDT. * At 507 PM MDT, gauge reports indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Gauges reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Alliance.

What the agency told people to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

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