772
WWUS85 KCYS 191926
RFWCYS
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
126 PM MDT SUN APR 19 2026
NEZ434>437-WYZ417-418-430>433-201200-
/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-
126 PM MDT SUN APR 19 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT MONDAY 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 WIND WITH GUSTS TO 20 MPH ON SUNDAY,
BECOMING LIGHT AND VARIABLE OVERNIGHT, THEN 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page