SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., APR. 16, 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 52 49 0.6 30 10 28 53 2 NW Coastal LA 51 46 0.4 28 8 13 44 3 SW Coastal LA 44 41 0.3 28 7 22 39 4 S Coastal LA 50 45 0.4 27 8 24 44 5 Southeast LA Co 51 47 0.5 28 8 28 44 6 W San Fernando Vly 59 55 0.4 26 9 14 51 7 E San Fernando Vly 60 55 0.5 29 11 22 55 8 W San Gabriel Vly 60 53 0.4 30 11 18 55 9 E San Gabriel Vly 62 55 0.4 32 8 23 51 10 Pomona Walnut Vly 59 53 0.5 32 9 24 50 11 S San Gabriel Vly 55 50 0.5 29 9 24 50 12 S Central LA Co 48 44 0.5 28 9 28 50 13 Santa Clarita Vly 67 60 0.4 25 9 19 67 15 San Gabriel Mts 62 56 0.4 32 9 22 54 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 56 52 0.4 21 10 8 53 Orange County: South Coast Air Basin 16 N Orange Co 54 49 0.3 31 8 17 45 17 Central Orange Co 45 42 0.4 21 8 15 44 18 N Coastal Orange Co 49 45 0.4 23 6 21 42 19 Saddleback Vly 52 48 0.2 31 4 18 44 20 Central Coastal 50 46 0.3 23 4 17 43 21 Capistrano Vly 50 45 0.3 31 4 18 42 Riverside County: South Coast Air Basin 22 Norco/Corona 58 54 0.4 42 10 19 53 23 Metro Riverside Co 64 56 0.4 47 12 20 56 24 Perris Vly 58 53 0.4 32 9 23 50 25 Lake Elsinore 53 49 0.3 21 7 18 45 26 Temecula Vly 51 46 0.3 43 6 16 43 27 Anza Vly 57 53 0.2 50 5 15 49 28 Hemet/San Jacinto 56 51 0.4 37 6 22 47 29 Banning 62 54 0.4 28 7 18 50 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 64 61 0.2 65 11 14 71 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 51 0.2 43 7 12 47 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 61 56 0.4 23 10 25 54 33 SW San Bernardino Vly 59 53 0.5 41 10 25 53 34 C San Bernardino Vly 64 58 0.5 25 10 27 61 35 E San Bernardino Vly 64 59 0.5 34 9 25 64 36 W San Bernardino Mtns 63 57 0.5 27 9 25 58 37 C San Bernardino Mtns 67 59 0.5 29 7 26 64 38 Big Bear Lake 67 61 0.5 35 7 23 71 San Bernardino County: Mojave Desert Air Basin 39 Phelan 65 60 0.4 28 7 21 67 40 Hesperia 61 57 0.4 30 8 24 58 41 Trona 52 49 0.3 34 4 45 45 42 Victorville 62 58 0.4 30 8 20 61 43 Yucca Vly 66 62 0.3 42 7 16 74 44 Barstow 56 52 0.3 28 5 23 48 45 Twentynine Palms 64 59 0.3 42 7 15 64 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., APR. 16, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 50 Ozone Coastal Area AQI: 44 PM2.5 Hemet/Elsinore Area AQI: 50 PM2.5 Inland Orange County AQI: 44 PM2.5 Northern Mojave Desert AQI: 48 Ozone Temecula/Anza Area AQI: 49 Ozone MODERATE in the following area(s): Antelope Valley AQI: 53 PM2.5 Big Bear Lake AQI: 71 Ozone Central Mojave Desert AQI: 74 Ozone Coachella Valley/Low Desert AQI: 71 Ozone Metropolitan Area AQI: 53 PM2.5 Riverside Valley AQI: 56 PM2.5 San Bernardino Mountains AQI: 64 Ozone San Bernardino Valley AQI: 64 Ozone San Fernando/Santa Clarita Valleys AQI: 67 Ozone San Gabriel Mountains AQI: 54 Ozone San Gabriel Valley AQI: 55 PM2.5 Victor Valley AQI: 67 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Stronger onshore flow is expected Thursday, bringing cooler temperatures and gusty southwest to west winds in the mountains and deserts, with gusts of 35 to 45 mph. Highs will range from the mid to upper 60s near the coast to the lower to mid 70s inland, with mid to upper 80s in the deserts. Inversion Base: 1548 FT | Breaking Temperature: 66 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2802 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 Below 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 THURSDAY, APRIL 16, 2026 IN THE SOUTH COAST AIR BASIN.