SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., FEB. 23, 2019 -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 24-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 42 37 0.9 19 10 10 42 2 NW Coastal LA 37 31 0.9 16 8 12 33 3 SW Coastal LA 39 35 0.9 20 9 16 38 4 S Coastal LA 43 37 0.9 21 10 12 42 5 Southeast LA Co 38 34 0.8 21 9 10 38 6 W San Fernando Vly 39 35 0.7 20 11 10 46 7 E San Fernando Vly 34 30 0.6 23 12 12 50 8 W San Gabriel Vly 46 41 0.6 21 11 12 46 9-1 E San Gabriel Vly-1 48 39 0.6 20 10 10 42 9-2 E San Gabriel Vly-2 48 39 0.6 20 10 10 42 10 Pomona Walnut Vly 46 40 0.6 29 14 10 54 11 S San Gabriel Vly 41 36 0.8 21 9 20 38 12 S Central LA Co 34 32 0.7 21 9 20 38 13 Santa Clarita Vly 36 31 0.6 13 5 10 29 15 San Gabriel Mts 44 39 0.5 11 7 10 36 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 33 31 0.5 15 5 10 29 Orange County: South Coast Air Basin 16 N Orange Co 49 43 0.5 20 10 10 42 17-1 Central Orange Co-1 47 44 0.7 21 11 10 46 17-2 Central Orange Co-2 37 34 0.7 21 11 10 46 18 N Coastal Orange Co 35 32 0.5 20 11 10 46 19 Saddleback Vly 47 41 0.7 13 7 10 38 20 Central Coastal 45 40 0.5 17 12 10 50 21 Capistrano Vly 48 42 0.6 13 11 10 46 Riverside County: South Coast Air Basin 22 Norco/Corona 48 42 0.5 29 13 10 52 23 Metro Riverside Co 41 36 0.5 29 13 10 52 24 Perris Vly 39 35 0.5 29 9 10 38 25 Lake Elsinore 47 43 0.5 14 6 10 40 26 Temecula Vly 42 38 0.5 25 4 10 35 27 Anza Vly 49 45 0.5 14 7 10 42 28 Hemet/San Jacinto 44 40 0.5 20 11 10 46 29 Banning 46 40 0.5 17 10 10 42 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 24-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 30-1 N Coachella Vly 43 43 0.5 19 8 10 40 30-2 S Coachella Vly 47 47 0.5 19 8 10 44 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 48 42 0.8 28 6 10 39 33 SW San Bernardino Vly 42 37 0.5 30 14 34 54 34-1 C San Bernardino Vly-1 38 33 0.5 30 9 10 38 34-2 C San Bernardino Vly-2 44 39 0.5 30 9 10 38 35 E San Bernardino Vly 52 44 0.5 16 7 10 41 36 W San Bernardino Mtns 41 36 0.5 27 5 10 33 37 C San Bernardino Mtns 51 43 0.5 22 7 10 40 38 Big Bear Lake 42 36 0.5 18 6 10 33 San Bernardino County: Mojave Desert Air Basin 39 Phelan 51 45 0.6 19 2 10 42 40 Hesperia 44 40 0.6 17 5 10 37 41 Trona 44 45 0.5 13 2 10 42 42 Victorville 44 43 0.6 17 5 10 40 43 Yucca Vly 49 43 0.6 13 4 10 40 44 Barstow 42 45 0.6 13 5 10 42 45 Twentynine Palms 47 42 0.5 15 3 10 39 -------------------------------------------------------------------------------- ------------------------------------------------------------------------ AIR QUALITY FORECAST ------------------------------------------------------------------------ ON SAT., FEB. 23, 2019 THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 50 PM2.5 Metropolitan Area AQI: 42 PM2.5 San Fernando/Santa Clarita Valleys AQI: 50 PM2.5 Inland Orange County AQI: 46 PM2.5 Hemet/Elsinore Area AQI: 40 Ozone Temecula/Anza Area AQI: 42 Ozone San Gabriel Mountains AQI: 29 Ozone San Bernardino Mountains AQI: 40 Ozone Big Bear Lake AQI: 33 Ozone Banning Pass Area AQI: 42 PM2.5 Coachella Valley/Low Desert AQI: 44 Ozone Antelope Valley AQI: 36 Ozone Victor Valley AQI: 42 Ozone Northern Mojave Desert AQI: 42 Ozone Central Mojave Desert AQI: 40 Ozone MODERATE in the following area(s): San Gabriel Valley AQI: 54 PM2.5 Riverside Valley AQI: 52 PM2.5 San Bernardino Valley AQI: 54 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Saturday will be warmer though temperatures will still be below normal. There will be weak diurnal flow. ------------------------------------------------------------------------ Inversion Base: 486 FT | Breaking Temperature: 49 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 4719 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AGRICULTURAL AND WILDLAND FIRES BURN FORECAST ------------------------------------------------------------------------ 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 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 SATURDAY, FEBRUARY 23, 2019 IN THE SOUTH COAST AIR BASIN.