National Weather Service Watches, Warnings and Advisories for Boulder

Air Quality Alert issued July 3 at 4:10PM MDT by NWS Denver CO

Air Quality Alert

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 Friday July 03 to 1200 AM Saturday July 04

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Ozone concentrations in the Unhealthy for
Sensitive Groups category are expected Friday afternoon and
evening in and near the Denver metro area. Lower ozone levels are
expected on Saturday due to an increase in showers and
thunderstorms.  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 midnight, Friday
night, July 3, 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.

* PRECAUTIONARY/PREPAREDNESS ACTIONS...N/A