A smoke advisory has been issued for parts of Los Angeles County due to multiple fires burning in the region.

Current Conditions

• The Bridge Fire is burning in the San Gabriel Mountains between Piñon Hills, Mount Baldy, La Verne, and Crystal Lake. As of 10 AM on Saturday, the fire has burned 52,960 acres and is 3% contained. For more information about the Bridge Fire visit the InciWeb webpage and the Cal Fire webpage.
• The Line Fire is burning between Highland, Running Springs, Big Bear Lake, and Angelus Oaks. As of 10 AM on Saturday, the fire has burned 38,074 acres and is 25% contained. For more information about the Line Fire, visit the CalFire incident page and the InciWeb webpage.
• The Airport Fire is burning in the Santa Ana Mountains between Rancho Santa Margarita, Lake Elsinore, and Modjeska Peak. As of 10 AM on Saturday, the fire has burned 23,410 acres and is 9% contained. For more information about the Airport Fire visit the InciWeb webpage.
• The regulatory monitor at Crestline measured PM2.5 levels in the Unhealthy Air Quality Index (AQI) category on Friday evening into Saturday morning before decreasing to the Unhealthy for Sensitive Groups AQI category around 4 AM. The monitor at Big Bear was in the Moderate to Good category all day Friday and early Saturday, but has now risen into the Unhealthy AQI category as of 10 AM. Other regulatory monitors measured PM2.5 levels in the Moderate AQI category or lower all day on Friday and into Saturday morning.
• As of 10 AM on Saturday, satellite imagery shows smoke production from both the Bridge and Line fires primarily traveling northward. Most of the South Coast Air Basin is cloud-covered. Any smoke production from the Airport fire is obscured by clouds. However, surface measurements indicate minimal smoke impacts from the Airport Fire in nearby areas including Lake Elsinore, Murrieta, and Rancho Santa Margarita.
• Information about Wildfire Smoke & Ash Health & Safety is available online.

Conditions may change quickly due to fire activity and weather. Download the South Coast AQMD app or visit www.aqmd.gov/AQImap to view current air quality in your neighborhood.

Forecasted Smoke and Air Quality Impacts

• Smoke from the Bridge, Line, and Airport Fires is expected to most heavily impact areas near each fire including the San Gabriel, San Bernardino, and Santa Ana Mountains, Mt. Baldy, Big Bear, Banning, Corona, Perris, and Lake Elsinore. Other areas of the South Coast Air Basin are expected to have minor smoke impacts, if any. The amount of smoke impact is highly dependent on how much smoke the fires continue to produce.
• Smoke impacts in the South Coast Air Basin and Coachella Valley will likely continue until fire activity decreases. South Coast Air Quality Management District will continue to provide daily smoke advisory updates until air quality impacts from smoke subside.

Detailed Forecast

South Coast AQMD will issue an update if additional information becomes available.

If you are in an area impacted by smoke:

• Limit your exposure by remaining indoors with windows and doors closed or seeking alternate shelter.
• Avoid vigorous physical activity.
• Run your air conditioning and/or an air purifier. If possible, do not use swamp coolers or whole house fans that bring in outside air.
• Avoid burning wood in your fireplace or firepit and minimize sources of indoor air pollution such as candles, incense, pan-frying, and grilling.
• If you must be outside, a properly fit N95 or P100 respirator may provide some protection.

For more information, visit www.aqmd.gov/smokesafety.

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