SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., NOV. 09, 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 56 44 0.7 35 16 51 64 2 NW Coastal LA 49 42 0.8 32 18 38 68 3 SW Coastal LA 54 46 0.9 34 23 40 77 4 S Coastal LA 56 46 1.2 41 22 40 75 5 Southeast LA Co 58 48 1.9 42 20 46 71 6 W San Fernando Vly 52 44 1.0 29 11 36 55 7 E San Fernando Vly 52 43 0.9 35 10 44 53 8 W San Gabriel Vly 87 71 0.6 34 8 38 101 9 E San Gabriel Vly 91 71 0.6 24 6 34 101 10 Pomona Walnut Vly 83 65 0.8 45 11 46 84 11 S San Gabriel Vly 57 46 1.2 41 15 43 62 12 S Central LA Co 57 47 1.9 38 21 38 73 13 Santa Clarita Vly 59 53 0.4 30 8 23 49 15 San Gabriel Mts 60 52 0.6 33 7 36 48 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 43 37 0.5 27 11 35 55 Orange County: South Coast Air Basin 16 N Orange Co 61 49 0.7 52 17 41 66 17 Central Orange Co 68 55 1.0 45 18 47 68 18 N Coastal Orange Co 52 44 1.1 40 23 40 77 19 Saddleback Vly 58 51 0.5 52 9 42 50 20 Central Coastal 55 50 0.7 37 26 33 82 21 Capistrano Vly 62 56 0.5 33 27 26 84 Riverside County: South Coast Air Basin 22 Norco/Corona 69 61 0.9 64 16 43 71 23 Metro Riverside Co 70 62 1.0 73 19 43 74 24 Perris Vly 66 60 0.7 48 8 34 67 25 Lake Elsinore 70 67 0.5 32 9 23 90 26 Temecula Vly 46 44 0.5 30 3 22 41 27 Anza Vly 44 42 0.4 27 3 24 39 28 Hemet/San Jacinto 49 47 0.7 38 4 27 44 29 Banning 47 45 0.6 32 5 19 42 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 47 45 0.2 36 8 27 44 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 41 39 0.2 24 3 19 36 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 60 51 0.7 26 8 33 47 33 SW San Bernardino Vly 70 59 0.9 64 15 45 64 34 C San Bernardino Vly 48 41 0.9 47 10 42 53 35 E San Bernardino Vly 50 44 0.8 50 6 37 46 36 W San Bernardino Mtns 51 45 0.7 32 6 37 42 37 C San Bernardino Mtns 47 41 0.8 44 4 36 41 38 Big Bear Lake 47 44 0.8 39 8 36 44 San Bernardino County: Mojave Desert Air Basin 39 Phelan 46 42 0.6 28 6 37 39 40 Hesperia 44 39 0.7 29 6 38 36 41 Trona 40 35 0.3 27 3 11 32 42 Victorville 44 39 0.6 29 8 38 44 43 Yucca Vly 46 44 0.4 27 5 32 41 44 Barstow 44 39 0.5 26 5 52 49 45 Twentynine Palms 43 41 0.3 27 4 29 38 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., NOV. 09, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 42 Ozone Big Bear Lake AQI: 44 PM2.5 Central Mojave Desert AQI: 41 Ozone Coachella Valley/Low Desert AQI: 44 PM2.5 Northern Mojave Desert AQI: 49 NO2 San Bernardino Mountains AQI: 42 Ozone San Gabriel Mountains AQI: 48 Ozone Temecula/Anza Area AQI: 41 Ozone Victor Valley AQI: 44 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Coastal Area AQI: 82 PM2.5 Hemet/Elsinore Area AQI: 90 Ozone Inland Orange County AQI: 84 PM2.5 Metropolitan Area AQI: 73 PM2.5 Riverside Valley AQI: 74 Ozone San Bernardino Valley AQI: 64 Ozone San Fernando/Santa Clarita Valleys AQI: 55 PM2.5 UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Gabriel Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Offshore winds will peak on Sunday, with gusts up to 25 mph in places. Temperatures will warm 3-9 degrees over Saturday, putting SoCal 12-17 degrees above seasonal norms. Coastal fog on Sunday morning will not be as widespread or deep as Saturday. Inversion Base: 486 FT | Breaking Temperature: 78 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2010 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 8, 9 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 SUNDAY, NOVEMBER 09, 2025 IN THE SOUTH COAST AIR BASIN.