Colorado Red Flag Warning | Effective 04/23/2026 04:33

Headline: 
Red Flag Warning issued April 23 at 5:33AM MDT until April 23 at 7:00PM MDT by NWS Denver CO
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
April 23, 2026 - 4:33am
Expires: 
April 23, 2026 - 12:45pm
Description: 
The National Weather Service in Denver has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...Fire Weather Zones 216, 238, 239, 240, 241, 242, 243, 244, 245, 246 and 249. * TIMING...For the Red Flag Warning, from 11 AM this morning to 7 PM MDT this evening. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 40 mph today. On Friday west 15 to 25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent today. As low as 7 percent on Friday. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
Instruction: 
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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Area Description: 
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; Morgan County; Central and East Adams and Arapahoe Counties; North and Northeast Elbert County Below 6000 Feet/North Lincoln County; Washington County
Forcast Office: 
NWS Denver CO