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 July 14 to 400 PM Wednesday July 15

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Sunny, hot, and stagnant weather will allow
ozone to reach the Unhealthy for Sensitive Groups category on
Tuesday and Wednesday. 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 15, 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.

AEUS75 KBOU 142210
AQABOU

Air Quality Alert
National Weather Service Denver CO
410 PM MDT Tue Jul 14 2026
COC001-005-013-014-031-035-059-069-123
Jefferson, CO-Larimer, CO-Adams, CO-Douglas, CO-Boulder, CO-Weld, CO-Denver, CO-Broomfield, CO-Arapahoe, CO

...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 July 14 to 400 PM Wednesday July 15

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Sunny, hot, and stagnant weather will allow
ozone to reach the Unhealthy for Sensitive Groups category on
Tuesday and Wednesday. 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 15, 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.

Local Weather

Denver, Colorado, US
1