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NWS Billings MTFW.W 0011September 3, 2026

Red Flag Warning: Crow Indian Reservation/Big Horn Canyon Rec Area and Bighorn National Forest, MT and WY

The National Weather Service office in Billings issued a red flag warning for Crow Indian Reservation/Big Horn Canyon Rec Area and Bighorn National Forest in Montana, Wyoming, which was in force until 9:00 p.m. local time on September 4. It was the 11th red flag warning the NWS office in Billings issued in 2026. Montana had 9 red flag warnings in September 2026, against 9 in an average September of 2008-2025 (Montana's red flag warnings by year).

ExpiredWarning

Issued2:19 p.m. MDT, September 3, 2026
In force from9:00 a.m. MDT, September 4, 2026
Expired9:00 p.m. MDT, September 4, 2026

In force for 12 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Billings MT
Area
Crow Indian Reservation/Big Horn Canyon Rec Area and Bighorn National Forest
State
Montana
Level
Warning
Issued
2:19 p.m. MDT, September 3, 2026
In force from
9:00 a.m. MDT, September 4, 2026
Expires
9:00 p.m. MDT, September 4, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KBYZ FW.W 0011
Official source
National Weather Service: the notice at its source

Red Flag Warnings in Montana since 2008Every warning type in Montana

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 Billings has issued a Red Flag Warning...which is in effect from 9 AM to 9 PM MDT Friday. * IMPACTS: Low humidities, unseasonably warm temperatures, and strong gusty winds will create erratic fire behavior. * AFFECTED AREA: In North Central WY Fire Zone...284. In South Central MT Fire Zone...129. * COUNTIES AFFECTED: In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In South Central MT...Big Horn...Carbon...Yellowstone. * WIND: South 10 to 20 mph with gusts 25 to 35 mph. * HUMIDITY: As low as 10 percent. * ADDITIONAL DETAILS: The worst conditions are expected across the lower elevations. * TEMPERATURES: Up to 96.

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.

The record around this notice