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NWS Billings MTFW.W 0013October 4, 2026

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

The National Weather Service office in Billings issued a red flag warning for Gallatin National Forest and Wheatland County/Sweet Grass County in Montana, in force until 8:00 p.m. local time on October 5. It was the 13th red flag warning the NWS office in Billings issued in 2026. Montana had 1 red flag warning in October 2026, against 3 in an average October of 2008-2025 (Montana's red flag warnings by year).

Warning

Issued12:40 p.m. MDT, October 4, 2026
In force from10:00 a.m. MDT, October 5, 2026
Expires8:00 p.m. MDT, October 5, 2026

In force for 10 hours

The notice

Issued by
National Weather Service, Billings MT
Area
Gallatin National Forest and Wheatland County/Sweet Grass County
State
Montana
Level
Warning
Issued
12:40 p.m. MDT, October 4, 2026
In force from
10:00 a.m. MDT, October 5, 2026
Expires
8:00 p.m. MDT, October 5, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KBYZ FW.W 0013
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 10 AM to 8 PM MDT Monday. The Fire Weather Watch is no longer in effect. * IMPACTS: Low humidities, unseasonably warm temperatures, and gusty winds will create erratic fire behavior for new or existing fires. * AFFECTED AREA: In South Central MT Fire Zones...123...124. * COUNTIES AFFECTED: In Central MT...Wheatland. In South Central MT...Park...Sweet Grass. In Southwest MT...Gallatin. * WIND: West 15 to 25 mph with gusts up to 35 mph. * HUMIDITY: As low as 12 percent. * TEMPERATURES: up to 87 degrees. * ADDITIONAL DETAILS: The worst conditions are expected across the lower to mid elevations in fine fuels.

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