269
WWUS85 KCYS 121729
RFWCYS
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1129 AM MDT SUN APR 12 2026
NEZ434>437-WYZ417>419-430>433-131200-
/O.CON.KCYS.FW.W.0014.260412T1800Z-260414T0200Z/
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-
1129 AM MDT SUN APR 12 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT MONDAY FOR
LOW RELATIVE HUMIDITY AND BREEZY CONDITIONS FOR FIRE WEATHER
ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437...
* WIND...WEST TO SOUTHWEST 15 TO 20 MPH. GUSTS 25 TO 35 MPH.
* HUMIDITY...8 TO 12 PERCENT.
* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
OUTDOOR BURNING IS NOT RECOMMENDED.
* ADDITIONAL DETAILS...POOR HUMIDITY RECOVERIES ARE EXPECTED
SUNDAY NIGHT.
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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