SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JUN. 19, 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 47 39 0.4 21 10 16 53 2 NW Coastal LA 37 33 0.3 21 7 12 39 3 SW Coastal LA 37 33 0.2 20 7 10 39 4 S Coastal LA 39 34 0.2 20 8 18 44 5 Southeast LA Co 45 36 0.3 21 9 16 50 6 W San Fernando Vly 49 44 0.2 21 8 6 44 7 E San Fernando Vly 52 46 0.3 21 10 13 53 8 W San Gabriel Vly 53 43 0.2 23 11 11 55 9 E San Gabriel Vly 61 50 0.3 24 10 16 53 10 Pomona Walnut Vly 60 48 0.3 35 10 15 53 11 S San Gabriel Vly 49 39 0.3 23 10 16 53 12 S Central LA Co 38 32 0.1 20 8 10 44 13 Santa Clarita Vly 63 52 0.2 21 10 11 53 15 San Gabriel Mts 58 51 0.3 35 10 13 53 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 60 55 0.2 23 11 9 55 Orange County: South Coast Air Basin 16 N Orange Co 52 40 0.1 26 9 9 50 17 Central Orange Co 45 35 0.2 19 8 10 44 18 N Coastal Orange Co 44 36 0.2 20 5 16 33 19 Saddleback Vly 51 44 0.2 26 5 10 41 20 Central Coastal 46 39 0.2 22 5 10 36 21 Capistrano Vly 42 36 0.2 30 5 8 33 Riverside County: South Coast Air Basin 22 Norco/Corona 52 46 0.3 32 10 10 53 23 Metro Riverside Co 59 52 0.4 33 11 9 55 24 Perris Vly 68 57 0.3 33 10 14 58 25 Lake Elsinore 56 47 0.2 20 8 6 44 26 Temecula Vly 41 38 0.2 42 8 7 44 27 Anza Vly 51 49 0.2 50 6 8 46 28 Hemet/San Jacinto 60 53 0.2 38 9 14 50 29 Banning 70 61 0.2 35 8 11 71 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 71 66 0.2 65 13 9 87 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 54 52 0.2 36 8 8 48 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 61 52 0.3 41 11 13 55 33 SW San Bernardino Vly 57 47 0.3 38 11 17 55 34 C San Bernardino Vly 63 56 0.2 35 10 20 54 35 E San Bernardino Vly 71 62 0.3 34 9 16 74 36 W San Bernardino Mtns 64 58 0.3 36 10 17 61 37 C San Bernardino Mtns 74 65 0.2 34 7 18 84 38 Big Bear Lake 65 61 0.2 35 5 16 71 San Bernardino County: Mojave Desert Air Basin 39 Phelan 68 64 0.2 29 6 15 80 40 Hesperia 63 56 0.2 28 8 17 54 41 Trona 54 52 0.1 41 8 25 48 42 Victorville 65 60 0.2 30 9 15 67 43 Yucca Vly 68 62 0.2 34 8 13 74 44 Barstow 71 64 0.2 35 8 24 80 45 Twentynine Palms 63 61 0.2 33 10 12 71 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JUN. 19, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 44 PM2.5 Inland Orange County AQI: 44 PM2.5 Temecula/Anza Area AQI: 46 PM10 MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Banning Pass Area AQI: 71 Ozone Big Bear Lake AQI: 71 Ozone Central Mojave Desert AQI: 74 Ozone Coachella Valley/Low Desert AQI: 87 Ozone Hemet/Elsinore Area AQI: 58 Ozone Metropolitan Area AQI: 53 PM2.5 Northern Mojave Desert AQI: 80 Ozone Riverside Valley AQI: 55 PM2.5 San Bernardino Mountains AQI: 84 Ozone San Bernardino Valley AQI: 74 Ozone San Fernando/Santa Clarita Valleys AQI: 53 PM2.5 San Gabriel Mountains AQI: 53 PM2.5 San Gabriel Valley AQI: 55 PM2.5 Victor Valley AQI: 80 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cooler temperatures are expected, with mostly sunny skies inland while mostly cloudy conditions along the coast. Strong winds with gusts to 55 mph are expected in the Coachella Valley. Inversion Base: 3030 FT | Breaking Temperature: 71 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3187 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 Above 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, JUNE 19, 2026 IN THE SOUTH COAST AIR BASIN.