SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., NOV. 25, 2020 -------------------------------------------------------------------------------- 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 43 35 0.8 50 23 54 74 2 NW Coastal LA 41 37 0.9 45 24 43 76 3 SW Coastal LA 42 39 1.0 47 22 40 72 4 S Coastal LA 38 32 1.3 44 19 51 66 5 Southeast LA Co 41 35 2.0 48 26 53 80 6 W San Fernando Vly 47 43 1.5 39 18 36 63 7 E San Fernando Vly 45 37 1.2 48 19 50 66 8 W San Gabriel Vly 48 39 0.8 47 19 50 66 9 E San Gabriel Vly 46 34 0.7 34 24 48 76 10 Pomona Walnut Vly 48 37 1.0 44 23 46 74 11 S San Gabriel Vly 43 34 1.4 48 26 53 80 12 S Central LA Co 38 33 2.0 47 28 45 84 13 Santa Clarita Vly 46 41 0.6 38 9 41 39 15 San Gabriel Mts 46 39 0.9 45 13 46 53 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 39 36 0.9 29 7 21 33 Orange County: South Coast Air Basin 16 N Orange Co 42 33 1.2 50 20 41 68 17 Central Orange Co 47 39 0.4 38 18 39 63 18 N Coastal Orange Co 47 44 1.1 38 7 46 43 19 Saddleback Vly 54 44 0.8 50 12 38 50 20 Central Coastal 50 44 0.7 34 11 35 46 21 Capistrano Vly 51 44 0.6 31 12 30 50 Riverside County: South Coast Air Basin 22 Norco/Corona 55 42 1.1 65 22 40 72 23 Metro Riverside Co 52 40 1.2 74 28 44 84 24 Perris Vly 44 40 0.7 48 14 44 55 25 Lake Elsinore 49 43 0.6 30 9 28 40 26 Temecula Vly 54 49 0.5 29 10 28 45 27 Anza Vly 52 47 0.5 28 11 31 46 28 Hemet/San Jacinto 50 46 0.5 40 13 43 53 29 Banning 53 48 0.5 35 12 40 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 51 43 0.6 30 18 36 63 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 39 35 0.4 23 7 23 32 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 43 33 0.9 35 24 45 76 33 SW San Bernardino Vly 51 38 1.1 64 24 45 76 34 C San Bernardino Vly 41 37 0.3 49 18 48 63 35 E San Bernardino Vly 47 41 0.7 52 12 46 50 36 W San Bernardino Mtns 41 35 0.7 33 20 44 68 37 C San Bernardino Mtns 50 46 0.6 45 13 46 53 38 Big Bear Lake 45 41 0.6 41 9 44 42 San Bernardino County: Mojave Desert Air Basin 39 Phelan 45 42 0.8 29 9 37 39 40 Hesperia 41 38 0.8 26 13 42 53 41 Trona 38 32 0.8 28 7 11 30 42 Victorville 46 40 0.9 27 11 35 46 43 Yucca Vly 50 48 0.6 23 8 35 44 44 Barstow 49 41 1.1 22 9 39 38 45 Twentynine Palms 46 43 0.6 23 9 31 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., NOV. 25, 2020, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 33 Ozone Banning Pass Area AQI: 50 PM2.5 Big Bear Lake AQI: 42 NO2 Central Mojave Desert AQI: 44 Ozone Northern Mojave Desert AQI: 38 Ozone Temecula/Anza Area AQI: 46 PM2.5 MODERATE in the following area(s): Coachella Valley/Low Desert AQI: 63 PM2.5 Coastal Area AQI: 76 PM2.5 Hemet/Elsinore Area AQI: 55 PM2.5 Inland Orange County AQI: 63 PM2.5 Metropolitan Area AQI: 84 PM2.5 Riverside Valley AQI: 84 PM2.5 San Bernardino Mountains AQI: 68 PM2.5 San Bernardino Valley AQI: 76 PM2.5 San Fernando/Santa Clarita Valleys AQI: 66 PM2.5 San Gabriel Mountains AQI: 53 PM2.5 San Gabriel Valley AQI: 80 PM2.5 Victor Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Wednesday will be a bit cooler than Tuesday with onshore flow. Evening and morning clouds and fog are expected, especially along the coast. Inversion Base: 486 FT | Breaking Temperature: 56 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2391 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: 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 WEDNESDAY, NOVEMBER 25, 2020 IN THE SOUTH COAST AIR BASIN.