418
WWUS85 KCYS 121952
RFWCYS
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
152 PM MDT TUE AUG 12 2025
WYZ418>422-427-131200-
/O.NEW.KCYS.FW.W.0018.250813T1800Z-250814T0200Z/
MIDDLE NORTH PLATTE RIVER BASIN/NIOBRARA AND CONVERSE HIGH PLAINS-
NORTH LARAMIE RANGE AND ADJACENT HIGH PLAINS-
NORTH LARAMIE VALLEY/SHIRLEY BASIN-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-CENTRAL AND WEST CARBON-
NORTH SNOWY RANGE FOOTHILLS-
152 PM MDT TUE AUG 12 2025
...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 418, 419,
420, 421, 422, AND 427...
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT FROM NOON TO 8 PM MDT WEDNESDAY.
* AFFECTED AREA...FIRE WEATHER ZONE 418.FIRE WEATHER ZONE
419.FIRE WEATHER ZONE 420.FIRE WEATHER ZONE 421.FIRE WEATHER
ZONE 422.FIRE WEATHER ZONE 427.
* WIND...GUSTS TO OVER 25 MPH EXPECTED.
* HUMIDITY...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.
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