252
WWUS85 KBOU 061421
RFWBOU
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
721 AM MST THU NOV 6 2025
COZ238-239-062230-
/O.NEW.KBOU.FW.W.0027.251106T1421Z-251107T0000Z/
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
721 AM MST THU NOV 6 2025
...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR
WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR WEST OF
I-25...
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY, WHICH IS IN EFFECT
UNTIL 5 PM MST THIS AFTERNOON.
* AFFECTED AREA...FIRE WEATHER ZONES 238 AND 239.
* TIMING...UNTIL 5 PM MST THIS AFTERNOON.
* WINDS...WEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH.
* RELATIVE HUMIDITY...AS LOW AS 14 PERCENT.
* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR RAPID FIRE SPREAD.
AVOID OUTDOOR BURNING AND ANY ACTIVITY THAT MAY PRODUCE A
SPARK AND START A WILDFIRE.
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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