301
WWUS85 KCYS 022009
RFWCYS
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
209 PM MDT SAT MAY 2 2026
NEZ434-435-WYZ417-418-030200-
/O.NEW.KCYS.FW.W.0021.260502T2009Z-260503T0200Z/
PINE RIDGE/NEBRASKA NATIONAL FOREST-
BOX BUTTE/SOUTH SIOUX/NIOBRARA RIVER-
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
MIDDLE NORTH PLATTE RIVER BASIN/NIOBRARA AND CONVERSE HIGH PLAINS-
209 PM MDT SAT MAY 2 2026
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW
RH AND BREEZY WINDS UP TO 25 MPH FOR FIRE WEATHER ZONES 417, 418,
434, AND 435...
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING.
* AFFECTED AREA...FIRE WEATHER ZONE 434, 435, 417, 418.
* WIND...WEST TO NORTHWEST WINDS WITH GUSTS TO 25 MPH.
* HUMIDITY...8 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.
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