SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., NOV. 30, 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 44 39 0.7 40 27 26 84 2 NW Coastal LA 42 38 0.6 35 17 20 66 3 SW Coastal LA 46 40 0.7 37 12 25 56 4 S Coastal LA 49 44 0.7 35 13 28 58 5 Southeast LA Co 46 42 1.2 38 26 27 82 6 W San Fernando Vly 47 43 0.8 31 19 19 69 7 E San Fernando Vly 45 42 0.8 38 27 24 84 8 W San Gabriel Vly 49 42 0.6 38 27 23 84 9 E San Gabriel Vly 54 45 0.5 32 26 19 82 10 Pomona Walnut Vly 56 46 0.8 33 29 26 88 11 S San Gabriel Vly 46 41 0.7 38 31 26 92 12 S Central LA Co 48 42 1.2 37 20 27 71 13 Santa Clarita Vly 52 44 0.5 29 16 19 64 15 San Gabriel Mts 50 43 0.7 35 20 25 71 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 49 42 0.6 18 15 16 62 Orange County: South Coast Air Basin 16 N Orange Co 47 42 0.5 34 27 21 84 17 Central Orange Co 46 42 0.8 30 23 26 77 18 N Coastal Orange Co 47 45 0.7 30 8 26 44 19 Saddleback Vly 49 46 0.4 34 13 23 58 20 Central Coastal 48 45 0.5 25 12 21 56 21 Capistrano Vly 49 46 0.5 21 10 18 53 Riverside County: South Coast Air Basin 22 Norco/Corona 54 47 1.0 42 29 24 88 23 Metro Riverside Co 60 50 1.1 47 33 24 96 24 Perris Vly 54 47 0.9 36 21 28 73 25 Lake Elsinore 51 47 0.5 30 23 15 77 26 Temecula Vly 46 42 0.5 20 8 16 44 27 Anza Vly 48 45 0.4 22 8 18 44 28 Hemet/San Jacinto 50 46 0.8 30 13 27 58 29 Banning 52 49 0.7 27 18 21 68 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 49 44 0.3 36 18 20 68 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 47 43 0.3 23 8 17 44 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 58 49 0.7 28 22 28 75 33 SW San Bernardino Vly 55 46 1.0 42 30 29 90 34 C San Bernardino Vly 52 45 0.9 36 18 34 68 35 E San Bernardino Vly 58 49 0.9 39 16 31 64 36 W San Bernardino Mtns 56 49 0.8 27 20 29 71 37 C San Bernardino Mtns 57 50 0.9 34 12 32 56 38 Big Bear Lake 56 53 0.8 31 13 29 58 San Bernardino County: Mojave Desert Air Basin 39 Phelan 52 49 0.7 25 8 27 45 40 Hesperia 54 48 0.8 26 14 30 60 41 Trona 41 34 0.4 15 8 14 44 42 Victorville 56 50 0.7 25 15 27 62 43 Yucca Vly 51 49 0.5 27 9 25 50 44 Barstow 50 43 0.6 22 9 37 50 45 Twentynine Palms 47 44 0.4 26 8 23 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., NOV. 30, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Central Mojave Desert AQI: 50 PM2.5 Northern Mojave Desert AQI: 50 PM2.5 Temecula/Anza Area AQI: 44 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 62 PM2.5 Banning Pass Area AQI: 68 PM2.5 Big Bear Lake AQI: 58 PM2.5 Coachella Valley/Low Desert AQI: 68 PM2.5 Coastal Area AQI: 66 PM2.5 Hemet/Elsinore Area AQI: 77 PM2.5 Inland Orange County AQI: 77 PM2.5 Metropolitan Area AQI: 84 PM2.5 Riverside Valley AQI: 96 PM2.5 San Bernardino Mountains AQI: 71 PM2.5 San Bernardino Valley AQI: 90 PM2.5 San Fernando/Santa Clarita Valleys AQI: 84 PM2.5 San Gabriel Mountains AQI: 71 PM2.5 San Gabriel Valley AQI: 92 PM2.5 Victor Valley AQI: 62 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cooler and dry weather are expected with highs returning closer to seasonal normals as onshore flow returns. Some low clouds and patchy dense fog remain across the coastal areas Sunday morning. Inversion Base: 1623 FT | Breaking Temperature: 66 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2268 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: NO-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: Prohibited in South Coast Air Basin Below 3000 ft 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 30, 2025 IN THE SOUTH COAST AIR BASIN.