SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: MON., NOV. 17, 2025 -------------------------------------------------------------------------------- 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 38 34 0.5 20 8 25 44 2 NW Coastal LA 35 32 0.4 18 5 11 30 3 SW Coastal LA 38 36 0.2 19 5 16 33 4 S Coastal LA 41 39 0.3 19 4 20 36 5 Southeast LA Co 37 35 0.4 20 6 26 33 6 W San Fernando Vly 42 36 0.3 17 5 16 33 7 E San Fernando Vly 41 35 0.4 19 7 19 39 8 W San Gabriel Vly 38 32 0.3 19 7 11 39 9 E San Gabriel Vly 37 34 0.3 18 5 19 31 10 Pomona Walnut Vly 39 34 0.5 27 6 26 33 11 S San Gabriel Vly 38 34 0.3 20 7 25 39 12 S Central LA Co 40 36 0.3 19 4 26 33 13 Santa Clarita Vly 41 37 0.2 16 7 12 39 15 San Gabriel Mts 40 36 0.3 26 6 19 33 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 44 40 0.2 12 6 15 37 Orange County: South Coast Air Basin 16 N Orange Co 35 33 0.2 22 6 16 33 17 Central Orange Co 32 30 0.2 20 6 14 33 18 N Coastal Orange Co 40 38 0.3 19 3 18 35 19 Saddleback Vly 41 39 0.2 21 2 15 36 20 Central Coastal 41 39 0.2 17 2 13 36 21 Capistrano Vly 42 39 0.2 16 2 12 36 Riverside County: South Coast Air Basin 22 Norco/Corona 39 35 0.3 24 7 17 39 23 Metro Riverside Co 39 35 0.5 24 9 22 50 24 Perris Vly 41 37 0.3 23 4 20 34 25 Lake Elsinore 44 38 0.2 13 3 10 35 26 Temecula Vly 37 34 0.2 18 2 13 31 27 Anza Vly 40 37 0.2 21 3 16 34 28 Hemet/San Jacinto 39 37 0.3 23 3 18 34 29 Banning 42 38 0.3 22 4 12 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 43 39 0.3 47 9 22 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 38 36 0.2 25 6 16 33 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 46 40 0.3 32 5 20 37 33 SW San Bernardino Vly 40 35 0.4 29 7 23 39 34 C San Bernardino Vly 38 34 0.3 27 4 24 31 35 E San Bernardino Vly 39 36 0.4 25 4 21 33 36 W San Bernardino Mtns 42 39 0.3 26 3 21 36 37 C San Bernardino Mtns 45 42 0.2 25 2 20 39 38 Big Bear Lake 43 41 0.3 23 4 24 38 San Bernardino County: Mojave Desert Air Basin 39 Phelan 43 41 0.2 17 3 18 38 40 Hesperia 41 39 0.2 14 2 20 36 41 Trona 37 38 0.2 18 2 13 35 42 Victorville 41 39 0.2 15 3 18 36 43 Yucca Vly 41 40 0.3 31 5 22 37 44 Barstow 42 39 0.2 15 3 31 36 45 Twentynine Palms 40 39 0.2 29 5 21 36 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON MON., NOV. 17, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 37 Ozone Banning Pass Area AQI: 35 Ozone Big Bear Lake AQI: 38 Ozone Central Mojave Desert AQI: 37 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Coastal Area AQI: 36 Ozone Hemet/Elsinore Area AQI: 35 Ozone Inland Orange County AQI: 36 Ozone Metropolitan Area AQI: 44 PM2.5 Northern Mojave Desert AQI: 36 Ozone Riverside Valley AQI: 50 PM2.5 San Bernardino Mountains AQI: 39 Ozone San Bernardino Valley AQI: 39 PM2.5 San Fernando/Santa Clarita Valleys AQI: 39 PM2.5 San Gabriel Mountains AQI: 33 PM2.5 San Gabriel Valley AQI: 39 PM2.5 Temecula/Anza Area AQI: 34 Ozone Victor Valley AQI: 38 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Another cooler system will bring rain to most of the area on Monday. Inversion Base: 9547 FT | Breaking Temperature: 86 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2132 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 MONDAY, NOVEMBER 17, 2025 IN THE SOUTH COAST AIR BASIN.