WWUS85 KCYS 211642

RFWCYS



URGENT - FIRE WEATHER MESSAGE

National Weather Service Cheyenne WY

1042 AM MDT Sat Mar 21 2026



NEZ434>437-WYZ417>419-430>433-220200-

/O.CON.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-

1042 AM MDT Sat Mar 21 2026



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

FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434,

435, 436, AND 437...



* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 

  432, 433, 434, 435, 436, and 437. 



* WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph.



* HUMIDITY...5 to 10 percent.



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

  Outdoor burning is not recommended.



* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 

  expected early Saturday morning. Well above average 

  temperatures are also expected which will contribute 

  considerably to the dry conditions.



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.



&&



$$



WYZ420>423-425-427>429-220200-

/O.CON.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-

1042 AM MDT Sat Mar 21 2026



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

FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND

429...



* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 

  427,428 and 429. 



* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.



* HUMIDITY...8 to 11 percent.



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

  Outdoor burning is not recommended.



* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 

  expected early Saturday morning. Well above average 

  temperatures are also expected which will contribute 

  considerably to the dry conditions.



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.



&&



$$