Montana, Wyoming Severe Red Flag Warning | Effective 07/11/2026 08:17

Headline: 
Red Flag Warning issued July 11 at 9:17AM MDT until July 12 at 10:00PM MDT by NWS Riverton WY
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
July 11, 2026 - 8:17am
Expires: 
July 12, 2026 - 6:00am
Description: 
* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283. In North Central WY Fire Zones...275...276...281...282. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. * WIND: Southeast 15 to 25 mph with gusts up to 35 mph. * HUMIDITY: As low as 5 percent. * TEMPERATURES: Highs 100 to 110.
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: 
North Bighorn Basin/Worland BLM; Cody Foothills; Natrona County/Casper BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM; Upper Wind River Basin/Wind River Basin
Forcast Office: 
NWS Riverton WY