Montana, Wyoming Severe Red Flag Warning | Effective 07/31/2026 23:56

Headline: 
Red Flag Warning issued August 1 at 12:56AM MDT until August 2 at 9:00PM MDT by NWS Billings MT
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
July 31, 2026 - 11:56pm
Expires: 
August 2, 2026 - 12:00am
Description: 
* IMPACTS: Low humidities, hot temperatures, strong gusty winds, and wind shift with a cold front will create erratic fire behavior. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zone...129. In Southeast MT Fire Zones...130...131...132. * COUNTIES AFFECTED: In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In South Central MT...Big Horn...Carbon...Yellowstone. In Southeast MT...Custer...Powder River...Rosebud...Treasure. * COLD FRONT: A cold front moves through Saturday night shifting winds to the northwest and increasing wind speeds. * WIND: Northwest 10 to 20 mph with gusts up to 35 mph behind the front. * HUMIDITY: As low as 12 percent. * TEMPERATURES: Up to 98 degrees.
Instruction: 
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.
Area Description: 
Crow Indian Reservation/Big Horn Canyon Rec Area; Northern Rosebud/Northern Treasure Counties; Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Custer County; Sheridan County/Casper BLM; Bighorn National Forest
Forcast Office: 
NWS Billings MT
Sender: 
w-nws.webmaster@noaa.gov