WWUS85 KCYS 200850

RFWCYS



URGENT - FIRE WEATHER MESSAGE

National Weather Service Cheyenne WY

250 AM MDT Mon Apr 20 2026



NEZ434>437-WYZ417-418-430>433-210200-

/O.CON.KCYS.FW.W.0017.000000T0000Z-260421T0200Z/

Pine Ridge/Nebraska National Forest-

Box Butte/South Sioux/Niobrara River-

Lower North Platte River Basin/Scottsbluff National Monument-

Lodgepole Creek/Southern Nebraska Panhandle-

Niobrara/Lower Elevations of Converse/Thunder Basin National

Grassland-

Middle North Platte River Basin/Niobrara and Converse High Plains-

Laramie Foothills and High Plains-Laramie East High Plains-

Bordeaux/Chugwater/Wheatland-Goshen/Middle-

Lower North Platte River Basin-

250 AM MDT Mon Apr 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING

FOR EXTREMELY DRY AND BREEZY CONDITIONS FOR FIRE WEATHER ZONES

417, 418, 430, 431, 432, 433, 434, 435, 436, AND 437...



* AFFECTED AREA...Fire weather zones 417, 418, and 430 through 

  437. 



* WIND...West to northwest winds with gusts between 25 and 30 mph

  on Monday.



* HUMIDITY...5 to 10 percent.



* IMPACTS...Any fires that develop will likely spread rapidly. 

  Outdoor burning is not recommended.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



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