Red Flag Warning Issued for Colorado Mountains Until 8 PM MDT
This alert is no longer in effect.
NOAA issued it on July 18, 2026, 5 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Denver has issued a Red Flag Warning for multiple fire weather zones in the Colorado mountains due to strong winds and low humidity.
Read this weather record in 30 seconds
- Record type
- Red Flag Warning
- Affected area
- Colorado Mountains
- Issued
- July 18, 2026
- Issuing authority
- NWS Denver CO
Fire-weather notices describe conditions that can support rapid fire spread; they do not report that a fire is present. Check local emergency sources for any active incident.
Record status: historical. It was issued 5 weeks ago; use the issuing agency's live warning service for current conditions in Colorado Mountains.
Alert Details
A Red Flag Warning was issued by NWS Denver CO on June 17 at 11:10 AM MDT and remains in effect until 8:00 PM MDT. The alert covers Fire Weather Zones 211, 212, 213, 214, 217, and 218.
Affected Areas
The warning applies to Jackson County below 9000 feet; South and Southeast Grand, West Central and Southwest Boulder, Gilpin, Clear Creek, Summit, North and West Park Counties above 9000 feet; Grand and Summit Counties below 9000 feet; Central and Southeast Park County; West Jackson and West Grand Counties above 9000 feet; and South and East Jackson, Larimer, North and Northeast Grand, Northwest Boulder Counties above 9000 feet.
What You Should Do
Avoid outdoor burning and any activity that may produce a spark and start a wildfire. A Red Flag Warning means critical fire weather conditions are occurring or will shortly occur.
Expected Conditions
West winds of 20 to 30 mph with gusts up to 50 mph are expected, strongest over the mountains. Relative humidity may drop as low as 10 percent.
Timeline
The warning is effective from 12:00 PM MDT through 8:00 PM MDT on June 17, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,119 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 18, 2026.
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