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Red Flag Warnings/Fire Weather Watches

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Red Flag Warning History

3.20.26: The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 2 p.m. to 10 p.m. MDT Saturday. The Fire Weather Watch is no longer in effect.


3.18.26: Red Flag Warning issued March 18 at 12:29 p.m. MDT until March 18 at 7:00 p.m. MDT by NWS Denver CO.


3.17.26: Red Flag Warning in effect from 11 a.m. to 7 p.m. MDT Wednesday for wind and low relative humidity for Boulder and Denver metro areas and adjacent plains through Adams and Arapahoe counties. Fire Weather Zones 239, 240, and 245.


3.11.26: The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 a.m. to 9 p.m. MDT Thursday. The Fire Weather Watch is no longer in effect. More information.


3.10.26: Red Flag Warning in effect from noon today to 7 p.m. MDT this evening for wind and low relative humidity for the I-25 Corridor. More information.


2.26.26: Red Flag Warning in effect from 8 a.m. to 6 p.m. MST Friday for wind and low relative humidity for the Urban Corridor and Plains along and north of I-70. More information.


Fire Weather Watches

3.20.26: Fire Weather Watch issued March 20 at 2:53 a.m. MDT until March 21 at 10 p.m. MDT by NWS Denver CO.