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Home Return to list Fire Weather Warning 0015 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-02-26 12:05:17 347 WWUS85 KBOU 261804 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1104 AM MST Thu Feb 26 2026 COZ250-251-261915- /O.CAN.KBOU.FW.A.0012.260227T1500Z-260228T0100Z/ Sedgwick County-Phillips County- 1104 AM MST Thu Feb 26 2026 ...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR PHILLIPS AND SEDGWICK COUNTIES... The National Weather Service in Denver has cancelled the Fire Weather Watch. Windy conditions are no longer expected, therefore the Fire Weather Watch has been canceled. Breezy west winds up to 25 mph remain possible, resulting in elevated fire weather conditions. $$ COZ238>240-242>245-248-249-271200- /O.UPG.KBOU.FW.A.0012.260227T1500Z-260228T0100Z/ /O.NEW.KBOU.FW.W.0015.260227T1500Z-260228T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County-Northeast Weld County- Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Logan County- Washington County- 1104 AM MST Thu Feb 26 2026 ...RED FLAG WARNING IN EFFECT FROM 8 AM TO 6 PM MST FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PLAINS ALONG AND NORTH OF I-70... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 8 AM to 6 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 242, 243, 244, 245, 248 and 249. * TIMING...From 8 AM to 6 PM MST Friday. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-02-27 05:40:36 665 WWUS85 KBOU 271140 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 440 AM MST Fri Feb 27 2026 COZ238>240-242>245-248-249-280100- /O.CON.KBOU.FW.W.0015.260227T1500Z-260228T0100Z/ 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-Northeast Weld County- Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Logan County- Washington County- 440 AM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 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 238, 239, 240, 242, 243, 244, 245, 248 and 249. * TIMING...From 8 AM this morning to 6 PM MST this evening. * WINDS...West 15 to 25 mph with gusts up to 40 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. && $$ Action: Continued Issued At: 2026-02-27 12:07:18 089 WWUS85 KBOU 271806 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1106 AM MST Fri Feb 27 2026 COZ238-242-248-280215- /O.NEW.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ /O.CON.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 1106 AM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PLAINS ALONG AND NORTH OF I-70... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR Northern Weld, Northeast Larimer, and Logan Counties... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 6 PM MST Saturday. * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...For the first Red Flag Warning, until 6 PM MST this evening. For the second Red Flag Warning, from 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ 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. && $$ Action: Continued Issued At: 2026-02-27 12:07:18 089 WWUS85 KBOU 271806 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1106 AM MST Fri Feb 27 2026 COZ238-242-248-280215- /O.NEW.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ /O.CON.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 1106 AM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE URBAN CORRIDOR AND PLAINS ALONG AND NORTH OF I-70... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR Northern Weld, Northeast Larimer, and Logan Counties... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 6 PM MST Saturday. * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...For the first Red Flag Warning, until 6 PM MST this evening. For the second Red Flag Warning, from 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ 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. && $$ Action: Expired Issued At: 2026-02-27 19:19:29 118 WWUS85 KBOU 280119 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 619 PM MST Fri Feb 27 2026 COZ238-242-248-281400- /O.EXP.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ /O.CON.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 619 PM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...From 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ 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. $$ Action: Expired Issued At: 2026-02-27 19:19:29 118 WWUS85 KBOU 280119 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 619 PM MST Fri Feb 27 2026 COZ238-242-248-281400- /O.EXP.KBOU.FW.W.0015.000000T0000Z-260228T0100Z/ /O.CON.KBOU.FW.W.0016.260228T1700Z-260301T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Logan County- 619 PM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 6 PM MST SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN WELD, EASTERN LARIMER, AND LOGAN COUNTIES... * AFFECTED AREA...Fire Weather Zones 238, 242 and 248. * TIMING...From 10 AM to 6 PM MST Saturday. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ 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. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||