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Home Return to list Fire Weather Warning 0016 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-02-27 12:07:18 089 WWUS85 KBOU 271806 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1106 AM MST Fri Feb 27 2026 COZ238-242-248-280215- /O.NEW.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ /O.CON.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 1106 AM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PLAINS ALONG AND NORTH OF I-70... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR Northern Weld, Northeast Larimer, and Logan Counties... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 6 PM MST Saturday. * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...For the first Red Flag Warning, until 6 PM MST this evening. For the second Red Flag Warning, from 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 9 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. && $$ COZ239-240-243>245-249-280100- /O.CON.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Washington County- 1106 AM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PLAINS ALONG AND NORTH OF I-70... * AFFECTED AREA...Fire Weather Zones 239, 240, 243, 244, 245 and 249. * TIMING...Until 6 PM MST this evening. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-02-27 19:19:29 118 WWUS85 KBOU 280119 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 619 PM MST Fri Feb 27 2026 COZ238-242-248-281400- /O.EXP.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ /O.CON.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 619 PM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...From 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 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. && $$ COZ239-240-243>245-249-280230- /O.EXP.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Washington County- 619 PM MST Fri Feb 27 2026 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PORTIONS OF THE PLAINS BETWEEN I-70 AND I-76... Wind gusts are decreasing and humidities are increasing above critical thresholds, therefore the warning has been allowed to expire. $$ Action: Continued Issued At: 2026-02-28 05:45:38 889 WWUS85 KBOU 281145 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 445 AM MST Sat Feb 28 2026 COZ238-242-248-010100- /O.CON.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 445 AM MST Sat Feb 28 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...From 10 AM this morning to 6 PM MST this evening. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 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. && $$ Action: Expired Issued At: 2026-02-28 18:52:35 300 WWUS85 KBOU 010051 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 551 PM MST Sat Feb 28 2026 COZ238-242-248-010200- /O.EXP.KBOU.FW.W.0016.000000T0000Z-260301T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 551 PM MST Sat Feb 28 2026 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... Winds have slackened to below critical thresholds and RH values are increasing. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||