403
WWUS85 KCYS 240150
RFWCYS
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
750 PM MDT THU APR 23 2026
NEZ437-WYZ430-431-241300-
/O.EXP.KCYS.FW.W.0019.000000T0000Z-260424T0200Z/
/O.CON.KCYS.FW.W.0020.260424T1800Z-260425T0200Z/
LODGEPOLE CREEK/SOUTHERN NEBRASKA PANHANDLE-
LARAMIE FOOTHILLS AND HIGH PLAINS-LARAMIE EAST HIGH PLAINS-
750 PM MDT THU APR 23 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT
FRIDAY FOR VERY STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER
ZONES 430, 431, AND 437...
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT FROM NOON TO 8 PM MDT FRIDAY FOR
PORTIONS OF FAR SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE.
* AFFECTED AREA... FIRE WEATHER ZONES 430, 431, AND 437.
* WIND... WEST TO SOUTHWEST WINDS GUSTING 25 TO 30 MPH.
* HUMIDITY... MINIMUM VALUES OF 10 TO 15 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.
NEZ435-436-WYZ433-240300-
/O.EXP.KCYS.FW.W.0019.000000T0000Z-260424T0200Z/
BOX BUTTE/SOUTH SIOUX/NIOBRARA RIVER-
LOWER NORTH PLATTE RIVER BASIN/SCOTTSBLUFF NATIONAL MONUMENT-
GOSHEN/MIDDLE-LOWER NORTH PLATTE RIVER BASIN-
750 PM MDT THU APR 23 2026
...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR VERY
STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 433, 435,
AND 436...
HUMIDITY VALUES WILL CONTINUE TO RECOVER AND WINDS WILL TAPER
ACROSS THE NORTHERN NEBRASKA PANHANDLE, ALLOWING THE RED FLAG
WARNING TO EXPIRE.
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