Ozone pollution alert issued for Central Colorado until early Friday

Published Jun 19, 2025

The National Weather Service reported an air quality alert at 4:10 p.m. on Thursday in effect until Friday at midnight for Central Colorado.

The NWS says to anticipate, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Jefferson County

• Weld County

• Adams County

• Larimer County

• Arapahoe County

• Douglas County

• Boulder County

• Broomfield County

• Denver 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:

Retreat indoors whenever feasible:

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

Trim outdoor activities to essentials:

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

Cut back on pollution-inducing activities:

Exercise prudence when it comes to activities that exacerbate pollution, such as driving cars, wielding gas-powered lawnmowers, or utilizing other motorized vehicles. Minimize 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:

Keep yourself well-informed by tuning in to NOAA Weather Radio or your preferred weather news outlet. Staying in the loop empowers you to make informed decisions regarding outdoor engagements during air quality alerts.

Focus on respiratory health:

If you have respiratory issues or health problems, exercise extra caution. These conditions can make you more vulnerable to the adverse effects of poor air quality.

By adhering to the recommendations from the NWS, you can enhance your safety during air quality alerts and reduce your exposure to potentially harmful pollutants. Stay vigilant, stay protected, and prioritize your health above all else.

Source: The National Weather Service