Update: Ozone pollution alert affecting Central Colorado Saturday

Published Jul 3, 2026

On Friday at 4:10 p.m. the National Weather Service reported an updated air quality alert in effect until Saturday at 9 a.m. for Central Colorado.

The NWS informs, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Jefferson County

• Denver County

• Weld County

• Arapahoe County

• Larimer County

• Adams County

• Boulder County

• Broomfield County

• Douglas County

Air quality alerts: Recommendations from the NWS

When an air quality alert is in effect, following the NWS guidance is pivotal. Here are some simple tips from the NWS for safeguarding your well-being:

Prioritize indoor stay:

If you can, take refuge indoors, especially if you have respiratory concerns, underlying health conditions, or belong to the senior or child demographics.

Minimize outdoor ventures:

When you can’t avoid going outdoors, keep outdoor activities to the bare essentials. Reducing your time outdoors is the key.

Mitigate pollution sources:

Be conscious of activities that contribute to pollution, such as driving cars, using gas-powered lawnmowers, or relying on motorized vehicles. Curtail their use during air quality alerts.

No open burning:

Refrain from igniting fires with debris or any other materials during air quality alerts. Such practices only contribute to the problem of poor air quality.

Stay well-informed:

Stay updated of developments by tuning in to NOAA Weather Radio or your preferred weather news source. Being well-informed empowers you to make informed decisions regarding outdoor pursuits during air quality alerts.

Respiratory health caution:

If you grapple with respiratory issues or underlying health problems, exercise added caution. These conditions can render you more susceptible to the adverse effects of compromised air quality.

Following the recommendations from the NWS helps bolster your safety during air quality alerts, minimizing your exposure to potentially harmful pollutants. Stay vigilant, stay protected, and make your health the top priority.

Source: The National Weather Service