SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., DEC. 03, 2023 -------------------------------------------------------------------------------- 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 39 31 0.8 39 14 34 55 2 NW Coastal LA 36 34 0.8 34 15 26 57 3 SW Coastal LA 38 31 0.8 36 19 34 66 4 S Coastal LA 38 33 1.1 34 21 29 70 5 Southeast LA Co 42 33 1.9 37 20 37 68 6 W San Fernando Vly 39 35 1.0 29 13 30 53 7 E San Fernando Vly 41 36 0.9 37 9 36 38 8 W San Gabriel Vly 42 35 0.8 37 9 38 38 9 E San Gabriel Vly 46 39 0.5 31 7 23 36 10 Pomona Walnut Vly 43 34 0.9 42 18 35 63 11 S San Gabriel Vly 44 34 1.0 37 19 37 66 12 S Central LA Co 39 32 1.9 36 24 30 76 13 Santa Clarita Vly 42 39 0.4 28 7 17 36 15 San Gabriel Mts 42 38 0.7 36 7 32 35 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 40 35 0.6 20 11 20 46 Orange County: South Coast Air Basin 16 N Orange Co 49 39 0.7 44 18 30 63 17 Central Orange Co 40 32 1.2 31 15 35 57 18 N Coastal Orange Co 38 31 1.0 30 19 31 66 19 Saddleback Vly 49 42 0.5 44 21 32 70 20 Central Coastal 48 39 0.7 30 25 26 78 21 Capistrano Vly 53 43 0.5 30 25 22 78 Riverside County: South Coast Air Basin 22 Norco/Corona 46 39 1.0 59 25 33 78 23 Metro Riverside Co 45 35 1.0 66 21 33 70 24 Perris Vly 47 41 0.8 50 13 31 53 25 Lake Elsinore 48 42 0.5 27 12 20 50 26 Temecula Vly 51 48 0.5 26 11 20 46 27 Anza Vly 47 43 0.4 26 7 21 40 28 Hemet/San Jacinto 52 47 0.8 39 11 31 46 29 Banning 49 45 0.8 33 12 28 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 49 42 0.3 31 16 22 59 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 42 39 0.3 21 7 19 36 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 45 38 0.8 40 17 33 61 33 SW San Bernardino Vly 43 35 1.0 59 22 36 72 34 C San Bernardino Vly 45 40 1.0 51 10 38 47 35 E San Bernardino Vly 46 41 0.9 53 7 34 49 36 W San Bernardino Mtns 45 41 0.9 40 8 34 38 37 C San Bernardino Mtns 43 40 1.0 48 11 35 46 38 Big Bear Lake 41 39 0.9 41 9 33 38 San Bernardino County: Mojave Desert Air Basin 39 Phelan 39 37 0.8 28 7 30 34 40 Hesperia 41 38 0.8 28 14 34 55 41 Trona 71 20 0.4 17 7 15 29 42 Victorville 41 37 0.8 28 13 31 53 43 Yucca Vly 39 38 0.5 22 11 26 46 44 Barstow 34 29 0.6 16 7 36 34 45 Twentynine Palms 43 39 0.4 22 9 24 38 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., DEC. 03, 2023, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 46 PM2.5 Banning Pass Area AQI: 50 PM2.5 Big Bear Lake AQI: 38 PM10 Central Mojave Desert AQI: 46 PM2.5 Northern Mojave Desert AQI: 34 NO2 San Bernardino Mountains AQI: 46 PM2.5 San Gabriel Mountains AQI: 35 Ozone Temecula/Anza Area AQI: 46 PM2.5 MODERATE in the following area(s): Coachella Valley/Low Desert AQI: 59 PM2.5 Coastal Area AQI: 78 PM2.5 Hemet/Elsinore Area AQI: 53 PM2.5 Inland Orange County AQI: 78 PM2.5 Metropolitan Area AQI: 76 PM2.5 Riverside Valley AQI: 78 PM2.5 San Bernardino Valley AQI: 72 PM2.5 San Fernando/Santa Clarita Valleys AQI: 53 PM2.5 San Gabriel Valley AQI: 66 PM2.5 Victor Valley AQI: 55 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Daytime temperatures on Sunday will be about 3 degrees warmer than Saturday as a ridge continues to build over the southwestern US. Winds will be light with no clear on/ offshore gradients. The mountains may see gusts up to 25 mph. Expect a sunny day and clear, chilly night. Inversion Base: 486 FT | Breaking Temperature: 59 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3329 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 SUNDAY, DECEMBER 03, 2023 IN THE SOUTH COAST AIR BASIN.