Update: Ozone pollution alert in place for Central Colorado until early Tuesday

Published Jul 28, 2026

On Monday at 10:11 p.m. an updated air quality alert was reported by the National Weather Service in effect until Tuesday at midnight for Central Colorado.

The NWS informs, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Larimer County

• Douglas County

• Weld County

• Boulder County

• Broomfield County

• Jefferson County

• Arapahoe County

• Adams County

• Denver County

Guidance for air quality alerts: Insights 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:

Seek shelter indoors when possible:

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

Curb outdoor exposure:

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

Tackle pollution sources:

Be mindful of activities that exacerbate pollution, such as driving cars, operating gas-powered lawnmowers, or using other motorized vehicles. Limit their use during air quality alerts.

No open burning:

Resist the urge to burn debris or any other materials during an air quality alert. This practice only adds to the air pollution problem.

Stay informed:

Keep yourself informed by tuning in to NOAA Weather Radio or your preferred weather news station. Staying in the know ensures that you can make informed decisions about outdoor activities 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