Air Quality Alert issued June 11 at 4:10PM MDT by NWS Grand Junction CO
Issue date: 2026-06-11T22:10+00:00
The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Ozone. WHERE...Mesa and Garfield Counties. Locations include, but are not limited to Grand Junction and Glenwood Springs. WHEN...300 PM Thursday June 11 to 1000 PM Thursday June 11 IMPACTS...A weather event known as a stratospheric intrusion is occurring. During these events, ozone from high in the atmosphere is pulled to the ground, resulting in elevated ozone concentrations. Ozone is expected to be Moderate to Unhealthy for Sensitive Groups through late Thursday evening. HEALTH INFORMATION...Public Health Recommendations: Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.
Red Flag Warning issued June 11 at 12:17PM MDT until June 12 at 9:00PM MDT by NWS Grand Junction CO
Issue date: 2026-06-11T18:17+00:00
* AFFECTED AREA...In Colorado, Fire Weather Zone 203 Lower Colorado River and Fire Weather Zone 205 Colorado River Headwaters below 8000 feet. * TIMING...From 1 PM to 9 PM MDT Friday. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...7 to 12 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning.
Red Flag Warning issued June 11 at 10:23AM MDT until June 12 at 9:00PM MDT by NWS Grand Junction CO
Issue date: 2026-06-11T16:23+00:00
The National Weather Service in Grand Junction has issued a Red Flag Warning for gusty winds, low relative humidity and dry fuels, which is in effect from 1 PM to 9 PM MDT Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Colorado, Fire Weather Zone 200 Little Snake Forecast Area, Fire Weather Zone 201 Routt Forecast Area, Fire Weather Zone 202 White River Forecast Area, Fire Weather Zone 203 Lower Colorado River, Fire Weather Zone 205 Colorado River Headwaters, Fire Weather Zone 290 Paradox Valley Forecast Area, Fire Weather Zone 291 Northern San Juan Forecast Area, Fire Weather Zone 292 North Fork Forecast Area and Fire Weather Zone 294 Southwest Colorado Upper West Forecast Area. In Utah, Fire Weather Zone 487 Book Cliffs. * TIMING...From 1 PM to 9 PM MDT Friday. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...7 to 12 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning.
