990
WWUS85 KBOU 111516
RFWBOU
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
816 AM MST THU DEC 11 2025
COZ216-238>243-245>247-112330-
/O.NEW.KBOU.FW.W.0028.251211T1516Z-251212T0000Z/
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
816 AM MST THU DEC 11 2025
...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR
WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER FOOTHILLS, I-25
CORRIDOR AND ADJACENT PLAINS...
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 216, 238, 239, 240, 241,
242, 243, 245, 246 AND 247.
* TIMING...UNTIL 5 PM MST THIS AFTERNOON.
* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.
* RELATIVE HUMIDITY...AS LOW AS 15 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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