Wyoming Severe Red Flag Warning | Effective 08/10/2026 13:00

Headline: 
Red Flag Warning issued August 10 at 2:00PM MDT until August 10 at 9:00PM MDT by NWS Riverton WY
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
August 10, 2026 - 1:00pm
Expires: 
August 11, 2026 - 6:00am
Description: 
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon to 9 PM MDT Tuesday. * IMPACTS: Low Humidities...Hot Temperatures...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...283...289. In North Central WY Fire Zone....287. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs. In Southwest WY...Sweetwater. * WIND: West 10 to 20 mph with gusts up to 30 mph. * THUNDERSTORMS: Lightning and outflow wind gusts to 60 mph will be possible through Monday afternoon. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the middle 90s; Highs around 90 in zone 287.
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: 
Upper Wind River Basin/Wind River Basin; Owl Creek Mountains; Granite/Green/Ferris/Rattlesnake Mountains
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov