Denver weather: Ozone Action Day Alert issued for Front Range urban corridor
The rainy and cool weather from Monday and Tuesday is gone for now, and Front Range residents from Douglas County to Fort Collins need to be vigilant of worsening ozone concentrations as Wednesday heats up.
Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld counties are in an Ozone Action Day Alert until at least 4 p.m. Wednesday, and the National Weather Service urges drivers to limit the use of gas or diesel vehicles.
The highest ozone concentration levels will likely be in cities south and west of Denver like Highlands Ranch and Golden.
While not as hot as it has been during parts of August, Wednesday has a high of 83 degrees, which will add to expectations of ozone levels hitting moderate and unhealthy concentrations for sensitive groups in the southern and western Denver metro areas.
“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,” the National Weather Service said in its alert.
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