Red Flag Warning Wyoming | Effective 04/06/2026 23:47

Headline: 
Red Flag Warning issued April 7 at 12:47AM MDT until April 7 at 9:00PM MDT by NWS Riverton WY
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
April 6, 2026 - 11:47pm
Expires: 
April 7, 2026 - 8:00pm
Description: 
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283...289. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Johnson. In Southwest WY...Sweetwater. * WIND: West 20 to 30 mph with gusts up to 40 to 50 mph. * HUMIDITY: As low as 13 to 16 percent.
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: 
Natrona County/Casper BLM; Johnson County/Casper BLM; Upper Wind River Basin/Wind River Basin; Granite/Green/Ferris/Rattlesnake Mountains
Forcast Office: 
NWS Riverton WY