Red Flag Warning in Boulder County, Colorado
Issued by the National Weather Service and archived by Claims Pages
EXPIRED
4/23/2026 5:33:00 AM (UTC)
Urgency: Expected
Severity: Severe
Certainty: Likely
4/23/2026 5:33:00 AM until 4/23/2026 1:45:00 PM
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.




