WWUS85 KCYS 220137

RFWCYS



URGENT - FIRE WEATHER MESSAGE

National Weather Service Cheyenne WY

737 PM MDT Sat Mar 21 2026





NEZ434>437-WYZ417>419-430>433-220245-

/O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/

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-

North Laramie Range and Adjacent High Plains-

Laramie Foothills and High Plains-Laramie East High Plains-

Bordeaux/Chugwater/Wheatland-Goshen/Middle-

Lower North Platte River Basin-

737 PM MDT Sat Mar 21 2026



...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE

WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436,

AND 437...



Relative humidites continue to increase this evening along with 

winds decreasing. Therefore, the Red Flag Warnings will be 

allowed to expire.



$$



WYZ420>423-425-427>429-220245-

/O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/

North Laramie Valley/Shirley Basin-

Ferris/Seminoe/Shirley Mountains-Central and West Carbon-

Southwest Carbon County-Upper North Platte River Basin-

North Snowy Range Foothills-Southern Laramie Valley-

Southern Laramie Range-

737 PM MDT Sat Mar 21 2026



...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE

WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429...



Relative humidites continue to increase this evening along with 

winds decreasing. Therefore, the Red Flag Warnings will be 

allowed to expire.



$$