Ozone pollution alert active for Central Colorado until early Friday

Published Jun 26, 2025

At 4:11 p.m. on Thursday, the National Weather Service reported an air quality alert in effect until Friday at midnight for Central Colorado.

The NWS adds to be ready for, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Weld County

• Arapahoe County

• Douglas County

• Broomfield County

• Adams County

• Denver County

• Jefferson County

• Larimer County

• Boulder County

Air quality alerts: Recommendations from the NWS

When an air quality alert pops up on the radar, deciphering its implications is crucial. These alerts, issued by the NWS, come with straightforward yet essential guidance to ensure your safety:

Seek shelter indoors when possible:

Whenever possible, seek refuge indoors, especially if you grapple with respiratory concerns, health issues, or belong to the senior or child demographic

Minimize outdoor exposure:

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

Reduce pollution contributors:

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.

A ban on 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 well-informed:

Stay updated by tuning in to NOAA Weather Radio or your preferred weather news outlet. Staying informed helps you make wise choices regarding outdoor activities during air quality alerts.

Respiratory health caution:

If you have respiratory problems or underlying health conditions, exercise extra caution. These conditions can increase your vulnerability to adverse effects from poor air quality.

By adhering to the advice from the NWS, you can enhance your safety during air quality alerts while reducing your exposure to potentially harmful pollutants. Stay aware, stay protected, and make your health a top priority.

Source: The National Weather Service