Nebraska, Wyoming Red Flag Warning | Effective 04/18/2026 18:32

Headline: 
Red Flag Warning issued April 18 at 7:32PM MDT until April 20 at 8:00PM MDT by NWS Cheyenne WY
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
April 18, 2026 - 6:32pm
Expires: 
April 19, 2026 - 6:00am
Description: 
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SUNDAY TO 8 PM MDT MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 430, 431, 432, 433, 434, 435, 436, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM Sunday to 8 PM MDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 430 through 437. * WIND...For the Red Flag Warning: West to northwest gusts to 20 mph Sunday, becoming light and variable overnight, then west to northwest gusts between 25 to 30 mph Monday. * HUMIDITY...10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
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: 
Pine Ridge/Nebraska National Forest; Box Butte/South Sioux/Niobrara River; Lower North Platte River Basin/Scottsbluff National Monument; Lodgepole Creek/Southern Nebraska Panhandle; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin
Forcast Office: 
NWS Cheyenne WY