SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: TUE., NOV. 25, 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 34 25 0.9 35 14 46 60 2 NW Coastal LA 38 31 0.8 31 13 35 58 3 SW Coastal LA 37 29 0.9 33 17 39 66 4 S Coastal LA 34 24 1.2 35 20 44 71 5 Southeast LA Co 33 23 1.5 36 18 51 68 6 W San Fernando Vly 39 35 1.2 27 13 40 58 7 E San Fernando Vly 39 32 1.1 34 9 42 50 8 W San Gabriel Vly 38 31 1.0 33 8 41 44 9 E San Gabriel Vly 39 33 0.6 20 5 45 42 10 Pomona Walnut Vly 35 26 1.1 33 11 48 55 11 S San Gabriel Vly 33 24 1.3 35 13 51 58 12 S Central LA Co 33 23 1.5 35 19 47 69 13 Santa Clarita Vly 41 37 0.4 27 8 24 44 15 San Gabriel Mts 40 35 0.8 32 6 41 39 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 41 34 0.6 22 11 33 55 Orange County: South Coast Air Basin 16 N Orange Co 34 25 1.1 37 15 42 62 17 Central Orange Co 33 25 1.2 37 16 40 64 18 N Coastal Orange Co 28 20 1.1 33 21 41 73 19 Saddleback Vly 42 35 0.6 33 10 38 53 20 Central Coastal 34 26 0.8 27 22 33 75 21 Capistrano Vly 41 32 0.6 27 20 29 71 Riverside County: South Coast Air Basin 22 Norco/Corona 43 34 1.1 37 16 38 64 23 Metro Riverside Co 45 37 1.1 45 18 43 68 24 Perris Vly 44 37 0.9 32 12 40 56 25 Lake Elsinore 43 38 0.6 17 9 28 50 26 Temecula Vly 44 39 0.5 16 4 25 36 27 Anza Vly 48 44 0.4 16 4 23 41 28 Hemet/San Jacinto 46 41 0.8 24 6 37 38 29 Banning 46 43 0.7 21 9 33 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 45 39 0.3 31 6 23 36 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 35 31 0.3 18 4 16 29 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 40 33 0.7 20 14 42 60 33 SW San Bernardino Vly 38 29 1.1 36 15 45 62 34 C San Bernardino Vly 37 32 1.0 29 10 42 53 35 E San Bernardino Vly 41 34 0.9 37 8 41 44 36 W San Bernardino Mtns 41 37 0.9 23 8 40 44 37 C San Bernardino Mtns 41 36 1.0 28 4 38 36 38 Big Bear Lake 49 46 0.9 25 7 37 43 San Bernardino County: Mojave Desert Air Basin 39 Phelan 47 45 0.8 21 6 34 42 40 Hesperia 39 33 0.8 20 9 37 50 41 Trona 35 26 0.4 13 4 8 24 42 Victorville 39 33 0.8 22 11 32 55 43 Yucca Vly 44 42 0.5 23 4 25 39 44 Barstow 37 28 0.6 24 5 35 33 45 Twentynine Palms 37 34 0.4 23 4 23 31 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON TUE., NOV. 25, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 50 PM2.5 Big Bear Lake AQI: 43 Ozone Central Mojave Desert AQI: 39 Ozone Coachella Valley/Low Desert AQI: 36 Ozone Northern Mojave Desert AQI: 33 NO2 San Bernardino Mountains AQI: 44 PM2.5 San Gabriel Mountains AQI: 39 NO2 Temecula/Anza Area AQI: 41 Ozone MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Coastal Area AQI: 75 PM2.5 Hemet/Elsinore Area AQI: 56 PM2.5 Inland Orange County AQI: 71 PM2.5 Metropolitan Area AQI: 69 PM2.5 Riverside Valley AQI: 68 PM2.5 San Bernardino Valley AQI: 62 PM2.5 San Fernando/Santa Clarita Valleys AQI: 58 PM2.5 San Gabriel Valley AQI: 58 PM2.5 Victor Valley AQI: 55 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Warming continues with temperatures well above normal. Weak Santa Ana winds develop, becoming stronger on Wednesday. Mostly clear after any early coastal fog clears. Inversion Base: 486 FT | Breaking Temperature: 68 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2354 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 TUESDAY, NOVEMBER 25, 2025 IN THE SOUTH COAST AIR BASIN.