SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., APR. 15, 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 50 48 0.3 27 10 22 53 2 NW Coastal LA 51 47 0.3 26 9 15 50 3 SW Coastal LA 49 44 0.3 27 8 19 44 4 S Coastal LA 46 45 0.4 26 8 25 44 5 Southeast LA Co 49 46 0.4 27 11 22 55 6 W San Fernando Vly 59 54 0.4 24 7 12 50 7 E San Fernando Vly 56 53 0.4 27 10 17 53 8 W San Gabriel Vly 57 52 0.3 27 11 14 55 9 E San Gabriel Vly 66 57 0.4 28 9 20 58 10 Pomona Walnut Vly 62 54 0.4 30 11 19 55 11 S San Gabriel Vly 54 49 0.4 28 11 22 55 12 S Central LA Co 46 45 0.4 27 11 19 55 13 Santa Clarita Vly 70 62 0.2 24 9 16 74 15 San Gabriel Mts 63 57 0.4 28 9 21 58 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 64 60 0.3 20 11 24 67 Orange County: South Coast Air Basin 16 N Orange Co 53 49 0.2 31 10 14 53 17 Central Orange Co 40 38 0.3 26 9 18 50 18 N Coastal Orange Co 44 43 0.3 26 5 23 40 19 Saddleback Vly 50 48 0.2 31 3 17 44 20 Central Coastal 47 45 0.2 25 4 17 42 21 Capistrano Vly 46 45 0.3 28 4 14 42 Riverside County: South Coast Air Basin 22 Norco/Corona 59 55 0.3 38 9 17 51 23 Metro Riverside Co 65 59 0.4 42 12 17 64 24 Perris Vly 58 55 0.3 29 9 21 51 25 Lake Elsinore 53 48 0.3 24 7 13 44 26 Temecula Vly 48 45 0.3 35 8 12 44 27 Anza Vly 59 55 0.2 39 8 12 51 28 Hemet/San Jacinto 58 54 0.3 31 9 21 50 29 Banning 63 59 0.3 25 6 18 64 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 67 62 0.2 48 14 11 74 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 58 55 0.2 34 7 11 51 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 70 62 0.4 23 12 24 74 33 SW San Bernardino Vly 61 55 0.4 37 12 25 56 34 C San Bernardino Vly 67 61 0.4 22 10 27 71 35 E San Bernardino Vly 67 61 0.4 28 10 24 71 36 W San Bernardino Mtns 66 60 0.4 28 9 25 67 37 C San Bernardino Mtns 68 64 0.3 29 6 26 80 38 Big Bear Lake 65 62 0.3 30 7 23 74 San Bernardino County: Mojave Desert Air Basin 39 Phelan 64 61 0.3 30 7 25 71 40 Hesperia 56 54 0.3 33 7 26 50 41 Trona 57 53 0.2 29 4 17 49 42 Victorville 61 59 0.3 32 9 25 64 43 Yucca Vly 65 62 0.2 33 9 17 74 44 Barstow 65 63 0.3 27 9 33 77 45 Twentynine Palms 56 55 0.2 33 8 16 51 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., APR. 15, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 50 PM2.5 Inland Orange County AQI: 50 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 67 Ozone Banning Pass Area AQI: 64 Ozone Big Bear Lake AQI: 74 Ozone Central Mojave Desert AQI: 74 Ozone Coachella Valley/Low Desert AQI: 74 Ozone Hemet/Elsinore Area AQI: 51 Ozone Metropolitan Area AQI: 55 PM2.5 Northern Mojave Desert AQI: 77 Ozone Riverside Valley AQI: 64 Ozone San Bernardino Mountains AQI: 80 Ozone San Bernardino Valley AQI: 74 Ozone San Fernando/Santa Clarita Valleys AQI: 74 Ozone San Gabriel Mountains AQI: 58 Ozone San Gabriel Valley AQI: 58 Ozone Temecula/Anza Area AQI: 51 Ozone Victor Valley AQI: 71 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Dry conditions are expected Wednesday with lighter winds and warming temperatures near seasonal averages. There will also be an\nincrease in clouds for late Wednesday night into Thursday morning. Inversion Base: 1633 FT | Breaking Temperature: 65 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2737 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 WEDNESDAY, APRIL 15, 2026 IN THE SOUTH COAST AIR BASIN.