NWS Denver COFW.W 0049June 28, 2026
Red Flag Warning: Jackson County Below 9000 Feet and South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet, CO and WY
The National Weather Service office in Denver issued a red flag warning for Jackson County Below 9000 Feet and South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet in Colorado, Wyoming, which was in force until 9:00 p.m. local time on June 28. It was the 49th red flag warning the NWS office in Denver issued in 2026. Colorado had 53 red flag warnings in June 2026, against 19 in an average June of 2008-2025 (Colorado's red flag warnings by year).
ExpiredWarning
In force for 8.3 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Denver CO
- Area
- Jackson County Below 9000 Feet and South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet
- State
- Colorado
- Level
- Warning
- Issued
- 12:40 p.m. MDT, June 28, 2026
- Expires
- 9:00 p.m. MDT, June 28, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KBOU FW.W 0049
- Official source
- National Weather Service: the notice at its source
Red Flag Warnings in Colorado since 2008Every warning type in Colorado
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
...PROLONGED CRITICAL FIRE WEATHER CONDITIONS EXPECTED FOR THE HIGH COUNTRY TODAY AND AGAIN ON MONDAY...POTENTIALLY CONTINUING THROUGH THE UPCOMING WEEK... A warm and dry airmass will coincide with gusty west and southwest winds today and Monday, and could potentially continue through most of the upcoming week. Sustained winds are expected to exceed 20 to 30 mph across much of the high country Sunday afternoon, with gusts up to 45 mph, strongest for exposed areas and higher elevations. These conditions will drive very high fire danger across the warned area. Any new starts or established fires will likely spread rapidly under these conditions. * AFFECTED AREA...Fire Weather Zones 211 and 218. * TIMING...Until 9 PM MDT this evening. * WINDS...Southwest 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 12 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.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.