NWS Issues Air Quality Alert for Los Angeles

The National Weather Service has warned of degraded air quality across parts of Los Angeles County through Thursday.

Updated on Nov. 10, 2026 in Asthma

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The National Weather Service issued an air quality alert Tuesday for parts of Los Angeles County, warning of degraded conditions through midnight Thursday, November 12. AI Illustration. Upload story photo >

The National Weather Service issued an air quality alert on Tuesday at 12:18 p.m. covering Los Angeles County Beaches, the Los Angeles County Inland Coast, and Downtown Los Angeles. The alert remains in effect until midnight on Thursday, November 12.

Why it matters

Air quality alerts signal conditions that may affect people sensitive to poor air, including those with asthma. Residents in the covered areas may want to monitor local advisories during the alert period.

The alert was issued at 12:18 p.m. on Tuesday and remains in effect until midnight Thursday, November 12. The extraction does not specify the pollutant or measured concentration driving the alert.

The players

National Weather Service

The National Weather Service is the federal agency under the National Oceanic and Atmospheric Administration that issues weather, water, and climate forecasts and warnings for the United States.

The details

The National Weather Service issued the alert for Los Angeles County Beaches, the Los Angeles County Inland Coast, and Downtown Los Angeles. Air quality alerts are issued by the agency to inform the public of conditions that may affect health.

Timeline

  1. Tuesday, November 10, 2026, 12:18 p.m.: National Weather Service issues the air quality alert.

  2. Thursday, November 12, 2026, midnight: Air quality alert expires.

Seasonal Patterns

The alert is one instance of the National Weather Service's standing air quality alert program, which issues public notices when conditions warrant them across Southern California regions.

People with asthma or other respiratory conditions may find poor air quality more difficult to manage during the alert period. Checking local advisories and limiting outdoor exertion may help reduce exposure.

The takeaway

Monitoring air quality alerts can help people with asthma plan outdoor activity and manage symptoms. Staying informed about conditions in your area is a practical step during alert periods.

Further reading

Explore more on Asthma to understand how air quality affects respiratory health.

Source note: This article includes information reported by Daily Breeze.