NWS Cheyenne WYFW.W 0029June 29, 2026
Red Flag Warning: Box Butte/South Sioux/Niobrara River, NE
The National Weather Service office in Cheyenne issued a red flag warning for Box Butte/South Sioux/Niobrara River in Nebraska, which was in force until 9:00 p.m. local time on June 29. It was the 29th red flag warning the NWS office in Cheyenne issued in 2026. Nebraska had 13 red flag warnings in June 2026, against 2 in an average June of 2008-2025 (Nebraska's red flag warnings by year).
ExpiredWarning
In force for 7.7 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/South Sioux/Niobrara River
- State
- Nebraska
- Level
- Warning
- Issued
- 1:18 p.m. MDT, June 29, 2026
- Expires
- 9:00 p.m. MDT, June 29, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KCYS FW.W 0029
- Official source
- National Weather Service: the notice at its source
Red Flag 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
The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 9 PM MDT this evening. This replaces the Fire Weather Watch. * WIND...Southwest to west winds 20 to 30 mph with gusts up to 50 mph. * HUMIDITY...Between 14 and 20 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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.