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NWS Billings MTFW.W 0010September 2, 2026

Red Flag Warning: Gallatin National Forest, Wheatland County/Sweet Grass County, Stillwater County and 3 more, MT

The National Weather Service office in Billings issued a red flag warning for Gallatin National Forest, Wheatland County/Sweet Grass County, Stillwater County and 3 more in Montana, which was in force until 9:00 p.m. local time on September 3. It was the 10th 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

Issued12:10 p.m. MDT, September 2, 2026
In force from12:00 p.m. MDT, September 3, 2026
Expired9:00 p.m. MDT, September 3, 2026

In force for 9 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Billings MT
Area
Gallatin National Forest, Wheatland County/Sweet Grass County, Stillwater County and 3 more
State
Montana
Level
Warning
Issued
12:10 p.m. MDT, September 2, 2026
In force from
12:00 p.m. MDT, September 3, 2026
Expires
9:00 p.m. MDT, September 3, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KBYZ FW.W 0010
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 noon to 9 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * IMPACTS: Low humidities and strong gusty winds will create erratic fire behavior. * AFFECTED AREA: In South Central MT Fire Zones...123...124...125...126...127 128. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In South Central MT...Carbon...Park...Stillwater...Sweet Grass Yellowstone. In Southwest MT...Gallatin. * WIND: Southwest 10 to 20 mph with gusts up to 40 mph. The strongest winds are forecast in the mountain foothills. * HUMIDITY: As low as 15 percent. * ADDITIONAL DETAILS: For MTZ123 and MTZ126, the worst conditions are expected across the lower elevations.

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