SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JAN. 30, 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 46 36 0.5 26 13 54 58 2 NW Coastal LA 42 34 0.6 23 9 34 50 3 SW Coastal LA 43 34 0.7 25 16 42 64 4 S Coastal LA 43 35 1.1 25 18 56 68 5 Southeast LA Co 44 34 2.5 26 17 53 66 6 W San Fernando Vly 43 39 0.8 21 3 32 36 7 E San Fernando Vly 44 37 0.7 25 8 45 44 8 W San Gabriel Vly 50 41 0.7 25 9 41 50 9 E San Gabriel Vly 49 41 0.4 11 6 30 38 10 Pomona Walnut Vly 48 37 0.9 23 11 51 55 11 S San Gabriel Vly 43 33 1.0 25 13 46 58 12 S Central LA Co 44 34 2.5 29 21 50 73 13 Santa Clarita Vly 45 41 0.2 21 5 20 38 15 San Gabriel Mts 45 40 0.5 24 6 37 37 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 46 36 0.4 18 9 30 50 Orange County: South Coast Air Basin 16 N Orange Co 46 35 0.9 26 14 47 60 17 Central Orange Co 42 32 1.0 26 14 53 60 18 N Coastal Orange Co 40 32 1.0 24 15 52 62 19 Saddleback Vly 46 39 0.5 23 6 44 42 20 Central Coastal 40 31 0.6 21 11 38 55 21 Capistrano Vly 39 32 0.4 22 8 30 44 Riverside County: South Coast Air Basin 22 Norco/Corona 46 39 0.7 27 10 41 53 23 Metro Riverside Co 44 40 0.7 45 11 39 55 24 Perris Vly 45 39 0.6 29 5 32 36 25 Lake Elsinore 44 40 0.3 15 3 25 37 26 Temecula Vly 42 38 0.3 32 3 22 35 27 Anza Vly 44 42 0.3 39 3 19 39 28 Hemet/San Jacinto 45 41 0.5 25 3 29 38 29 Banning 46 43 0.5 19 3 29 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 43 0.3 52 9 17 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 41 37 0.2 28 6 15 34 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 50 43 0.7 25 8 36 44 33 SW San Bernardino Vly 46 37 0.9 28 11 49 55 34 C San Bernardino Vly 42 40 0.7 23 5 29 37 35 E San Bernardino Vly 44 41 0.6 35 4 35 38 36 W San Bernardino Mtns 45 42 0.6 25 6 32 39 37 C San Bernardino Mtns 43 40 0.6 25 1 33 37 38 Big Bear Lake 45 43 0.6 22 7 30 40 San Bernardino County: Mojave Desert Air Basin 39 Phelan 45 43 0.5 24 6 35 40 40 Hesperia 39 34 0.6 27 6 36 34 41 Trona 34 25 0.3 15 5 11 28 42 Victorville 41 35 0.5 26 8 37 44 43 Yucca Vly 45 43 0.4 23 6 24 40 44 Barstow 41 29 0.4 17 6 43 41 45 Twentynine Palms 41 38 0.3 25 6 22 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JAN. 30, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 50 PM2.5 Banning Pass Area AQI: 40 Ozone Big Bear Lake AQI: 40 Ozone Central Mojave Desert AQI: 40 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Hemet/Elsinore Area AQI: 38 Ozone Northern Mojave Desert AQI: 41 NO2 San Bernardino Mountains AQI: 39 Ozone San Fernando/Santa Clarita Valleys AQI: 44 PM2.5 San Gabriel Mountains AQI: 37 Ozone Temecula/Anza Area AQI: 39 Ozone Victor Valley AQI: 44 PM2.5 MODERATE in the following area(s): Coastal Area AQI: 68 PM2.5 Inland Orange County AQI: 60 PM2.5 Metropolitan Area AQI: 73 PM2.5 Riverside Valley AQI: 55 PM2.5 San Bernardino Valley AQI: 55 PM2.5 San Gabriel Valley AQI: 58 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Temperatures on Friday will be warmer than Thursday with sunny skies expected. Weak offshore flow will help ventilate the region. Inversion Base: 486 FT | Breaking Temperature: 72 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 4863 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 FRIDAY, JANUARY 30, 2026 IN THE SOUTH COAST AIR BASIN.