Update: Ozone pollution alert for Central Colorado until early Friday evening

Published Jul 25, 2025

On Friday at 9:11 a.m. an updated air quality alert was reported by the National Weather Service in effect until 4 p.m. for Central Colorado.

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

The full list of affected locations includes:

• Weld County

• Boulder County

• Douglas County

• Adams County

• Jefferson County

• Broomfield County

• Arapahoe County

• Larimer 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:

Prioritize indoor stay:

If it’s within your means, stay indoors, especially if you have respiratory issues, health concerns, or fall within 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.

A ban on open burning:

Refrain from kindling fires with debris or any other materials during an air quality alert. Such practices only contribute to heightened air pollution.

Stay 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.

Prioritize respiratory health:

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