Air Quality Alert Message
Status
Issued Active alertStart Time
Mon 05/18/2026 10:41 PM EDTEnd Time
Tue 05/19/2026 10:00 PM EDTImpacts
Informational
Full Alert Message
Air Quality Alert Message Relayed by National Weather Service Los Angeles/Oxnard CA 741 PM PDT Mon May 18 2026 ...AIR QUALITY ALERT FOR HARMFUL FINE PARTICLE POLLUTION LEVELS DUE TO WILDFIRE SMOKE... * WHAT...The South Coast AQMD has issued an air quality alert due to increased fine particle pollution from wildfire smoke. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels. * WHERE...most of LA County and all of Orange County. Levels of particle pollution can vary by time and location depending on fire activity and local weather conditions. * WHEN...until Tuesday evening. * IMPACTS...Particles in wildfire smoke can get deep into the lungs and cause serious health problems such as heart attacks, strokes, asthma attacks, and difficulty breathing. Everyone can be affected, but people with lung or heart disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. PRECAUTIONARY/PREPAREDNESS ACTIONS... To protect your health, if you smell or see smoke: * Remain indoors with windows and doors closed * Avoid intense outdoor physical activity * Run your air conditioner and/or an air purifier * If you must be outdoors, keep the time brief and wear a well- fitting N-95 mask * Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool * Avoid other sources of pollution such as fireplaces, candles, incense, grilling, and gasoline-powered lawn and garden equipment
Technical Header
CAZ088-362-366>373-375-378>380-548-200200- Santa Clarita Valley-Malibu Coast-Los Angeles County Beaches- Palos Verdes Hills- Los Angeles County Inland Coast including Downtown Los Angeles- Western Santa Monica Mountains Recreational Area- Eastern Santa Monica Mountains Recreational Area- Calabasas and Agoura Hills-Western San Fernando Valley- Eastern San Fernando Valley-Santa Susana Mountains- Interstate 5 Corridor- Western San Gabriel Mountains and Highway 14 Corridor- Eastern San Gabriel Mountains-Los Angeles County San Gabriel Valley- Including the cities of Lake Castaic, Newhall, Santa Clarita, Valencia, Malibu, Pacific Palisades, LAX, Long Beach, Redondo Beach, Santa Monica, Torrance, Rancho Palos Verdes, Beverly Hills, Compton, Culver City, Downey, Hollywood, Norwalk, Malibu Bowl, Topanga, Westlake Village, Malibu Lake, Northridge, Woodland Hills, Van Nuys, Chatsworth, Burbank, Universal City, Glendale, Sunland, La Canada Flintridge, Oat Mountain, Tejon Pass, Gorman, Pyramid Lake, Acton, Warm Springs, Mill Creek, Mount Wilson, Mount Baldy, Wrightwood, The Angeles Crest Highway, East Los Angeles, El Monte, Pasadena, Pomona, and San Gabriel 741 PM PDT Mon May 18 2026