SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., APR. 12, 2026 -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Los Angeles County: South Coast Air Basin 1 Central LA Co 45 43 0.4 13 4 12 40 2 NW Coastal LA 48 45 0.3 12 4 11 42 3 SW Coastal LA 43 41 0.3 13 4 8 38 4 S Coastal LA 46 44 0.3 16 5 18 41 5 Southeast LA Co 45 43 0.4 16 5 16 40 6 W San Fernando Vly 45 43 0.3 11 3 9 40 7 E San Fernando Vly 45 43 0.3 13 4 11 40 8 W San Gabriel Vly 45 43 0.3 14 4 9 40 9 E San Gabriel Vly 45 41 0.3 15 3 8 38 10 Pomona Walnut Vly 42 41 0.2 20 4 12 38 11 S San Gabriel Vly 44 42 0.3 16 4 13 39 12 S Central LA Co 46 44 0.4 14 5 15 41 13 Santa Clarita Vly 47 44 0.2 10 4 9 41 15 San Gabriel Mts 44 42 0.3 20 4 9 39 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 50 44 0.2 11 6 4 41 Orange County: South Coast Air Basin 16 N Orange Co 46 43 0.2 17 5 8 40 17 Central Orange Co 41 39 0.3 17 5 14 36 18 N Coastal Orange Co 45 43 0.3 15 4 16 40 19 Saddleback Vly 44 43 0.2 15 3 11 40 20 Central Coastal 44 43 0.2 13 3 10 40 21 Capistrano Vly 43 41 0.2 26 3 6 38 Riverside County: South Coast Air Basin 22 Norco/Corona 44 42 0.3 17 4 10 39 23 Metro Riverside Co 47 44 0.5 19 5 11 41 24 Perris Vly 39 37 0.3 23 4 10 34 25 Lake Elsinore 45 39 0.2 10 3 4 36 26 Temecula Vly 43 38 0.2 47 4 5 44 27 Anza Vly 43 40 0.2 60 2 5 53 28 Hemet/San Jacinto 42 39 0.2 33 3 8 36 29 Banning 44 41 0.2 20 2 6 38 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Riverside County: Salton Sea Air Basin 30 Coachella Vly 48 46 0.2 86 4 6 66 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 44 42 0.2 38 4 5 39 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 46 42 0.3 23 6 8 39 33 SW San Bernardino Vly 44 42 0.3 21 5 12 39 34 C San Bernardino Vly 46 42 0.4 27 4 13 39 35 E San Bernardino Vly 43 41 0.3 25 4 10 38 36 W San Bernardino Mtns 45 41 0.2 21 4 11 38 37 C San Bernardino Mtns 52 46 0.2 25 3 11 43 38 Big Bear Lake 46 45 0.2 23 3 10 42 San Bernardino County: Mojave Desert Air Basin 39 Phelan 47 43 0.2 16 3 11 40 40 Hesperia 47 42 0.2 16 4 12 39 41 Trona 44 42 0.2 50 3 21 46 42 Victorville 48 43 0.2 16 5 13 40 43 Yucca Vly 48 47 0.2 27 3 8 44 44 Barstow 47 45 0.2 18 4 14 42 45 Twentynine Palms 44 43 0.2 30 3 8 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., APR. 12, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 41 Ozone Banning Pass Area AQI: 38 Ozone Big Bear Lake AQI: 42 Ozone Central Mojave Desert AQI: 44 Ozone Coastal Area AQI: 42 Ozone Hemet/Elsinore Area AQI: 36 Ozone Inland Orange County AQI: 40 Ozone Metropolitan Area AQI: 41 Ozone Northern Mojave Desert AQI: 46 PM10 Riverside Valley AQI: 41 Ozone San Bernardino Mountains AQI: 43 Ozone San Bernardino Valley AQI: 39 Ozone San Fernando/Santa Clarita Valleys AQI: 41 Ozone San Gabriel Mountains AQI: 39 Ozone San Gabriel Valley AQI: 40 Ozone Victor Valley AQI: 40 Ozone MODERATE in the following area(s): Coachella Valley/Low Desert AQI: 66 PM10 Temecula/Anza Area AQI: 53 PM10 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly cloudy becoming sunny with cooler temperatures. Inversion Base: 6111 FT | Breaking Temperature: 73 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 4650 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: BURN Area 53 - Mojave Desert Air Basin: BURN Area 55 - Salton Sea Air Basin: BURN Beach Fire Ring Wood Burning: Allowed in All Areas Residential Wood Burning: Allowed in All Areas Coachella Valley Rule 403.1 Wind Forecast: Winds Above 25 MPH ------------------------------------------------------------------------ ATTENTION ALL SCHOOLS AND INDUSTRIES THIS IS THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT NO AIR POLLUTION OR HEALTH ADVISIORY EPISODES ARE PREDICTED FOR SUNDAY, APRIL 12, 2026 IN THE SOUTH COAST AIR BASIN.