Active Weather Alerts
Air Quality Alert
Issued: 10:11 PM Jun. 30, 2026 – National Weather Service
...ACTION DAY FOR MULTIPLE POLLUTANTS FROM 400 PM TUESDAY UNTIL 400 PM WEDNESDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Action Day for Multiple Pollutants. WHERE...Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN...400 PM Tuesday June 30 to 400 PM Wednesday July 01 IMPACTS...Action Day for Multiple Pollutants is now in effect for the Front Range Urban Corridor. Continued hot and sunny weather conditions may allow ozone concentrations to reach the Unhealthy for Sensitive Groups category on Tuesday and Wednesday. The transport of wildfire smoke may increase particle pollution levels, reaching the Unhealthy for Sensitive Groups category, or worse, at times. For Colorado air quality conditions, forecasts, and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx If possible, please help us reduce ozone pollution by limiting driving gas and diesel-powered vehicles until at least 4 p.m. Wednesday, July 1, 2026. Colorado is also addressing ozone pollution through state policies. For more information about health impacts and how ozone pollution forms in Colorado, visit: https://cdphe.colorado.gov/ozone- pollution-and-your-health HEALTH INFORMATION...If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.
Red Flag Warning
Issued: 9:09 PM Jun. 30, 2026 – National Weather Service
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-70 MOUNTAINS, SOUTH PARK, AND THE SOUTHERN FRONT RANGE FOOTHILLS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-70 MOUNTAINS, SOUTH PARK, AND THE SOUTHERN FRONT RANGE FOOTHILLS... * AFFECTED AREA...Fire Weather Zones 212, 214 and 216. * TIMING...For the Red Flag Warning, until 9 PM MDT this evening. For the Fire Weather Watch, from Wednesday afternoon through Wednesday evening. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
Fire Weather Watch
Issued: 9:09 PM Jun. 30, 2026 – National Weather Service
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-70 MOUNTAINS, SOUTH PARK, AND THE SOUTHERN FRONT RANGE FOOTHILLS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-70 MOUNTAINS, SOUTH PARK, AND THE SOUTHERN FRONT RANGE FOOTHILLS... * AFFECTED AREA...Fire Weather Zones 212, 214 and 216. * TIMING...For the Red Flag Warning, until 9 PM MDT this evening. For the Fire Weather Watch, from Wednesday afternoon through Wednesday evening. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
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