THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 385 IN EFFECT UNTIL 1 AM MDT WEDNESDAY 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.

OZONE ACTION DAY ALERT FROM 400 PM TUESDAY UNTIL 400 PM WEDNESDAY... 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 Tuesday June 23 to 400 PM Wednesday June 24 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Hot temperatures and light winds will allow increased ozone levels on Tuesday and Wednesday. The highest concentrations of ozone are most likely in the southern and western portions of the Denver Metro area. 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, June 24, 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...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.