Weather Alerts for Larimer County

Issued by the National Weather Service

Air Quality Alert  AIR QUALITY ALERT   Air Quality Alert

Areas Affected:
Adams - Arapahoe - Boulder - Broomfield - Denver - Douglas - Jefferson - Larimer - Weld
Effective: Sun, 7/25 3:10pm Updated: Sun, 7/25 5:58pm Urgency: Unknown
Expires: Sun, 7/25 6:00pm Severity: Unknown Certainty: Unknown

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 Saturday July 24 to 400 PM Sunday July 25
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Requests to limit driving of non-ZEV
vehicles (i.e., gas or diesel) are now in effect until at least 4
p.m. Sunday, July 25, 2021.  Ozone concentrations in the Unhealthy
for Sensitive Groups category will be possible both Saturday and
Sunday during the afternoon and evening hours, mainly from the
western suburbs of Denver, northward along the foothills through
Boulder, to Ft. Collins, along with southern parts of Weld County.
For areas included in this advisory that are not expected to reach
the Unhealthy for Sensitive Groups (USG) air quality designation,
we request that activities, such as driving non-ZEV vehicles
(i.e., gas or diesel), be reduced to lessen the impacts on
neighboring air quality. Additional air pollution in this region
may directly worsen air quality or contribute to precursors which
may also adversely affect air quality.  For Colorado air quality
conditions, forecasts and advisories, visit:
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.