Active Weather Alerts
Air Quality Alert
Issued: 10:11 PM Jul. 16, 2025 – National Weather Service
...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM THURSDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Ozone Action Day Alert. WHERE...Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN...400 PM Wednesday July 16 to 400 PM Thursday July 17 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Ozone will remain in the Good to Moderate range on Wednesday. Warming temperatures and light winds may allow ozone to reach levels that are Unhealthy for Sensitive Groups on Thursday. The highest concentrations are expected along the western portions of the northern Front Range, from western Denver northward to Fort Collins. 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. Thursday, July 17, 2025. 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...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.
Severe Thunderstorm Watch
Issued: 8:46 PM Jul. 16, 2025 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 519 IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN COLORADO THIS WATCH INCLUDES 14 COUNTIES IN EAST CENTRAL COLORADO ELBERT LINCOLN IN NORTH CENTRAL COLORADO LARIMER IN NORTHEAST COLORADO ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER DOUGLAS JEFFERSON LOGAN MORGAN WASHINGTON WELD THIS INCLUDES THE CITIES OF AKRON, ARVADA, AURORA, BOULDER, BROOMFIELD, CASTLE ROCK, CENTENNIAL, DENVER, DENVER INTERNATIONAL AIRPORT, ELIZABETH, FORT COLLINS, FORT MORGAN, GREELEY, KIOWA, LAKEWOOD, LIMON, LONGMONT, LOVELAND, PARKER, STERLING, THORNTON, WESTMINSTER, AND WINDSOR.
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