SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: TUE., JAN. 13, 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 40 31 0.7 23 11 45 55 2 NW Coastal LA 37 33 0.4 21 9 32 50 3 SW Coastal LA 38 32 0.8 22 13 42 58 4 S Coastal LA 41 32 1.4 21 13 48 58 5 Southeast LA Co 41 32 2.2 22 13 47 58 6 W San Fernando Vly 43 39 0.9 19 5 28 36 7 E San Fernando Vly 40 33 0.7 23 7 42 40 8 W San Gabriel Vly 47 37 0.7 22 7 43 41 9 E San Gabriel Vly 44 37 0.4 13 4 25 34 10 Pomona Walnut Vly 40 30 0.8 19 8 41 44 11 S San Gabriel Vly 41 31 1.0 22 10 46 53 12 S Central LA Co 42 32 2.2 22 16 45 64 13 Santa Clarita Vly 46 41 0.2 19 4 21 38 15 San Gabriel Mts 44 39 0.5 21 4 37 36 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 40 33 0.4 17 7 30 39 Orange County: South Coast Air Basin 16 N Orange Co 43 34 0.8 20 9 42 50 17 Central Orange Co 38 30 1.0 20 9 43 50 18 N Coastal Orange Co 37 29 1.2 19 9 45 50 19 Saddleback Vly 44 38 0.5 20 8 37 44 20 Central Coastal 40 33 0.7 17 9 34 50 21 Capistrano Vly 42 37 0.4 16 9 28 50 Riverside County: South Coast Air Basin 22 Norco/Corona 46 38 0.7 21 9 34 50 23 Metro Riverside Co 46 39 0.7 24 9 35 50 24 Perris Vly 45 38 0.6 24 5 32 35 25 Lake Elsinore 46 41 0.4 15 3 24 38 26 Temecula Vly 43 38 0.4 16 2 23 35 27 Anza Vly 47 44 0.3 17 2 22 41 28 Hemet/San Jacinto 45 41 0.5 22 3 28 38 29 Banning 45 42 0.5 19 3 22 39 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 44 0.3 19 9 22 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 40 35 0.3 13 5 18 32 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 52 43 0.6 13 6 36 40 33 SW San Bernardino Vly 44 35 0.8 21 9 40 50 34 C San Bernardino Vly 44 38 0.7 28 3 32 35 35 E San Bernardino Vly 44 38 0.6 26 4 33 35 36 W San Bernardino Mtns 48 43 0.6 19 3 33 40 37 C San Bernardino Mtns 44 41 0.6 26 1 34 38 38 Big Bear Lake 48 46 0.6 23 9 30 50 San Bernardino County: Mojave Desert Air Basin 39 Phelan 45 44 0.5 19 5 34 41 40 Hesperia 36 32 0.6 21 6 35 33 41 Trona 31 26 0.3 14 2 15 24 42 Victorville 39 34 0.5 21 10 36 53 43 Yucca Vly 48 46 0.4 12 6 26 43 44 Barstow 33 25 0.4 14 5 41 39 45 Twentynine Palms 42 38 0.3 12 5 25 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON TUE., JAN. 13, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 39 PM2.5 Banning Pass Area AQI: 39 Ozone Big Bear Lake AQI: 50 PM2.5 Central Mojave Desert AQI: 43 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Hemet/Elsinore Area AQI: 38 Ozone Inland Orange County AQI: 50 PM2.5 Northern Mojave Desert AQI: 39 NO2 Riverside Valley AQI: 50 PM2.5 San Bernardino Mountains AQI: 40 Ozone San Bernardino Valley AQI: 50 PM2.5 San Fernando/Santa Clarita Valleys AQI: 40 NO2 San Gabriel Mountains AQI: 36 Ozone Temecula/Anza Area AQI: 41 Ozone MODERATE in the following area(s): Coastal Area AQI: 58 PM2.5 Metropolitan Area AQI: 64 PM2.5 San Gabriel Valley AQI: 53 PM2.5 Victor Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Santa Ana winds are expected, lighter and more localized than Monday but still gusty near coastal mountain slopes and foothills. Warm and dry, with temperatures continuing to trend upward, remaining well above average inland. Inversion Base: 486 FT | Breaking Temperature: 69 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3650 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, JANUARY 13, 2026 IN THE SOUTH COAST AIR BASIN.