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Alert Archives for All California Counties
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143 total alerts issued on this day

Updates Every 15 Minutes
Spacer GifLast Update:August 28, 2026 - 7:00 am PDT
Imperial County   5 alerts
SVW.gif   EXTREME HEAT WARNING   (6 updates)
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 27 11:37 am Expired: Aug 28 4:00 am Duration: 16 hrs   23 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 27 11:37 am Expired: Aug 28 4:00 am Duration: 16 hrs   23 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 28 12:22 am Expired: Aug 28 3:30 pm Duration: 15 hrs   08 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 12:22 am Expired: Aug 28 3:30 pm Duration: 15 hrs   08 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 28 1:56 pm Expired: Aug 29 4:00 am Duration: 14 hrs   04 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 1:56 pm Expired: Aug 28 8:00 pm Duration: 6 hrs   04 mins  
SPS.gif   SPECIAL WEATHER STATEMENT   (2 updates)
At 320 PM PDT, Doppler radar was tracking a strong thunderstorm 10
Areas affected: Imperial County West; Imperial Valley
Effective: Aug 28 3:21 pm Expired: Aug 28 4:00 pm Duration: 0 hrs   39 mins  
At 349 PM PDT, Doppler radar was tracking a strong thunderstorm 8
Areas affected: Imperial Valley
Effective: Aug 28 3:49 pm Expired: Aug 28 4:15 pm Duration: 0 hrs   26 mins  
SPS.gif   AIR QUALITY ALERT  
Areas affected: Imperial County Southwest; Imperial County West; Imperial Valley
Effective: Aug 28 3:45 pm Expired: Aug 30 12:00 am Duration: 1 day   8 hrs   15 mins  
SWA.gif   DUST ADVISORY   (3 updates)
The National Weather Service in Phoenix has issued a
Areas affected: Imperial, CA
Effective: Aug 28 4:22 pm Expired: Aug 28 5:00 pm Duration: 0 hrs   38 mins  
The National Weather Service in Phoenix has issued a
Areas affected: La Paz, AZ; Yuma, AZ; Imperial, CA
Effective: Aug 28 5:07 pm Expired: Aug 28 6:00 pm Duration: 0 hrs   53 mins  
At 540 PM MST/540 PM PDT/, a wall of dust was along a line extending
Areas affected: La Paz, AZ; Yuma, AZ; Imperial, CA
Effective: Aug 28 5:40 pm Expired: Aug 28 6:00 pm Duration: 0 hrs   20 mins  
EWW.gif   DUST STORM WARNING  
The National Weather Service in Phoenix has issued a
Areas affected: Imperial, CA
Effective: Aug 28 4:32 pm Expired: Aug 28 5:15 pm Duration: 0 hrs   43 mins  
Riverside County   3 alerts
SVW.gif   EXTREME HEAT WARNING   (15 updates)
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 27 11:37 am Expired: Aug 28 4:00 am Duration: 16 hrs   23 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 27 11:37 am Expired: Aug 28 4:00 am Duration: 16 hrs   23 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 28 12:22 am Expired: Aug 28 3:30 pm Duration: 15 hrs   08 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 12:22 am Expired: Aug 28 3:30 pm Duration: 15 hrs   08 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 28 1:56 pm Expired: Aug 29 4:00 am Duration: 14 hrs   04 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 1:56 pm Expired: Aug 28 8:00 pm Duration: 6 hrs   04 mins  
SPS.gif   AIR QUALITY ALERT  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Coachella Valley; San Gorgonio Pass Near Banning; Orange County Inland
Effective: Aug 24 1:34 pm Expired: Aug 28 8:00 pm Duration: 4 days   6 hrs   26 mins  
HTY.gif   HEAT ADVISORY   (3 updates)
Areas affected: Riverside County Mountains
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Riverside County Mountains
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Riverside County Mountains
Effective: Aug 28 11:46 am Expired: Aug 28 8:00 pm Duration: 8 hrs   14 mins  
San Bernardino County   3 alerts
SVW.gif   EXTREME HEAT WARNING   (11 updates)
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 27 11:37 am Expired: Aug 28 4:00 am Duration: 16 hrs   23 mins  
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 27 1:17 pm Expired: Aug 28 5:00 am Duration: 15 hrs   43 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Apple and Lucerne Valleys
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 12:22 am Expired: Aug 28 3:30 pm Duration: 15 hrs   08 mins  
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 28 4:22 am Expired: Aug 28 8:00 pm Duration: 15 hrs   38 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Apple and Lucerne Valleys
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: Apple and Lucerne Valleys
Effective: Aug 28 11:46 am Expired: Aug 28 8:00 pm Duration: 8 hrs   14 mins  
Areas affected: Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit
Effective: Aug 28 1:56 pm Expired: Aug 28 8:00 pm Duration: 6 hrs   04 mins  
SPS.gif   AIR QUALITY ALERT  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Coachella Valley; San Gorgonio Pass Near Banning; Orange County Inland
Effective: Aug 24 1:34 pm Expired: Aug 28 8:00 pm Duration: 4 days   6 hrs   26 mins  
HTY.gif   HEAT ADVISORY   (3 updates)
Areas affected: San Bernardino County Mountains
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: San Bernardino County Mountains
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Bernardino County Mountains
Effective: Aug 28 11:46 am Expired: Aug 28 8:00 pm Duration: 8 hrs   14 mins  
Inyo County
SVW.gif   EXTREME HEAT WARNING   (2 updates)
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 27 1:17 pm Expired: Aug 28 5:00 am Duration: 15 hrs   43 mins  
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 28 4:22 am Expired: Aug 28 8:00 pm Duration: 15 hrs   38 mins  
Monterey County
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 3 PM PDT FRIDAY DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 27 10:46 pm Expired: Aug 28 8:00 am Duration: 9 hrs   14 mins  
RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 28 6:51 am Expired: Aug 28 3:00 pm Duration: 8 hrs   09 mins  
San Benito County
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 3 PM PDT FRIDAY DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 27 10:46 pm Expired: Aug 28 8:00 am Duration: 9 hrs   14 mins  
RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 28 6:51 am Expired: Aug 28 3:00 pm Duration: 8 hrs   09 mins  
San Mateo County
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 3 PM PDT FRIDAY DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 27 10:46 pm Expired: Aug 28 8:00 am Duration: 9 hrs   14 mins  
RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 28 6:51 am Expired: Aug 28 3:00 pm Duration: 8 hrs   09 mins  
Santa Clara County
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 3 PM PDT FRIDAY DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 27 10:46 pm Expired: Aug 28 8:00 am Duration: 9 hrs   14 mins  
RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 28 6:51 am Expired: Aug 28 3:00 pm Duration: 8 hrs   09 mins  
Santa Cruz County
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 3 PM PDT FRIDAY DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 27 10:46 pm Expired: Aug 28 8:00 am Duration: 9 hrs   14 mins  
RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON DUE TO LIGHTNING FOR SANTA CRUZ MOUNTAINS, SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO, SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY, NORTHERN MONTEREY BAY, AND SOUTHERN MONTEREY BAY AND BIG SUR COAST
Areas affected: Santa Cruz Mountains; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Aug 28 6:51 am Expired: Aug 28 3:00 pm Duration: 8 hrs   09 mins  
Orange County   3 alerts
SVW.gif   EXTREME HEAT WARNING   (6 updates)
Areas affected: Orange County Inland
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Orange County Inland
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Orange County Inland
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
HTY.gif   HEAT ADVISORY   (3 updates)
Areas affected: Orange County Coastal
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Orange County Coastal
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Orange County Coastal
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
SPS.gif   AIR QUALITY ALERT  
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Coachella Valley; San Gorgonio Pass Near Banning; Orange County Inland
Effective: Aug 24 1:34 pm Expired: Aug 28 8:00 pm Duration: 4 days   6 hrs   26 mins  
San Diego County   4 alerts
SVW.gif   EXTREME HEAT WARNING   (12 updates)
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: San Diego County Inland Valleys
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: San Diego County Mountains
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Diego County Inland Valleys
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Diego County Mountains
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: San Diego County Inland Valleys
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
Areas affected: San Diego County Mountains
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
HTY.gif   HEAT ADVISORY   (3 updates)
Areas affected: San Diego County Coastal Areas
Effective: Aug 27 9:05 pm Expired: Aug 28 6:15 am Duration: 9 hrs   10 mins  
Areas affected: San Diego County Coastal Areas
Effective: Aug 28 5:03 am Expired: Aug 28 2:15 pm Duration: 9 hrs   12 mins  
Areas affected: San Diego County Coastal Areas
Effective: Aug 28 11:46 am Expired: Aug 28 10:15 pm Duration: 10 hrs   29 mins  
SPS.gif   SPECIAL WEATHER STATEMENT  
At 511 PM PDT, Doppler radar was tracking a cluster of strong
Areas affected: San Diego County Mountains; San Diego County Deserts
Effective: Aug 28 5:12 pm Expired: Aug 28 6:00 pm Duration: 0 hrs   48 mins  
FLS.gif   FLOOD ADVISORY  
Areas affected: San Diego, CA
Effective: Aug 28 5:08 pm Expired: Aug 28 7:15 pm Duration: 2 hrs   07 mins  
San Luis Obispo County   2 alerts
HTY.gif   HEAT ADVISORY   (4 updates)
Areas affected: San Luis Obispo County Inland Central Coast; Santa Barbara County Inland Central Coast; Santa Ynez Valley
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: San Luis Obispo County Inland Central Coast; Santa Barbara County Inland Central Coast; Santa Ynez Valley
Effective: Aug 28 11:16 am Expired: Aug 28 8:00 pm Duration: 8 hrs   44 mins  
Areas affected: Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains
Effective: Aug 28 11:16 am Expired: Aug 28 8:00 pm Duration: 8 hrs   44 mins  
FWW.gif   RED FLAG WARNING   (4 updates)
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES
Areas affected: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys
Effective: Aug 27 1:33 pm Expired: Aug 28 10:00 am Duration: 20 hrs   27 mins  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES
Areas affected: San Luis Obispo County Mountains
Effective: Aug 27 1:33 pm Expired: Aug 28 10:00 am Duration: 20 hrs   27 mins  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY/ERRATIC WINDS AND LOW HUMIDITIES
Areas affected: San Luis Obispo County Mountains
Effective: Aug 28 9:59 am Expired: Aug 28 3:00 pm Duration: 5 hrs   01 min  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY/ERRATIC WINDS AND LOW HUMIDITIES
Areas affected: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys
Effective: Aug 28 9:59 am Expired: Aug 28 3:00 pm Duration: 5 hrs   01 min  
Santa Barbara County   4 alerts
HTY.gif   HEAT ADVISORY   (4 updates)
Areas affected: San Luis Obispo County Inland Central Coast; Santa Barbara County Inland Central Coast; Santa Ynez Valley
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: San Luis Obispo County Inland Central Coast; Santa Barbara County Inland Central Coast; Santa Ynez Valley
Effective: Aug 28 11:16 am Expired: Aug 28 8:00 pm Duration: 8 hrs   44 mins  
Areas affected: Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Areas affected: Santa Barbara County Southwestern Coast
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
SVW.gif   EXTREME HEAT WARNING   (8 updates)
Areas affected: Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Santa Barbara County Southwestern Coast
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Cuyama Valley; Santa Clarita Valley; Santa Barbara County Interior Mountains; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley; Los Angeles County San Gabriel Valley
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Areas affected: Santa Barbara County Southwestern Coast
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Areas affected: Cuyama Valley; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
Effective: Aug 28 11:16 am Expired: Aug 28 8:00 pm Duration: 8 hrs   44 mins  
Areas affected: Santa Ynez Mountains Western Range
Effective: Aug 28 11:16 am Expired: Aug 29 6:00 am Duration: 18 hrs   44 mins  
FWW.gif   RED FLAG WARNING   (2 updates)
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES
Areas affected: Cuyama Valley; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 27 1:33 pm Expired: Aug 28 10:00 am Duration: 20 hrs   27 mins  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY/ERRATIC WINDS AND LOW HUMIDITIES
Areas affected: Cuyama Valley; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 28 9:59 am Expired: Aug 28 3:00 pm Duration: 5 hrs   01 min  
WIY.gif   WIND ADVISORY   (2 updates)
Areas affected: Santa Ynez Mountains Western Range
Effective: Aug 28 11:16 am Expired: Aug 29 6:00 am Duration: 18 hrs   44 mins  
Areas affected: Santa Barbara County Southwestern Coast
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Ventura County   4 alerts
SVW.gif   EXTREME HEAT WARNING   (6 updates)
Areas affected: Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Cuyama Valley; Santa Clarita Valley; Santa Barbara County Interior Mountains; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley; Los Angeles County San Gabriel Valley
Effective: Aug 27 10:30 pm Expired: Aug 28 8:00 pm Duration: 21 hrs   30 mins  
Areas affected: Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Areas affected: Cuyama Valley; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
Effective: Aug 28 11:16 am Expired: Aug 28 8:00 pm Duration: 8 hrs   44 mins  
Areas affected: Santa Clarita Valley; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Los Angeles County San Gabriel Valley
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
FWW.gif   RED FLAG WARNING   (4 updates)
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES
Areas affected: Cuyama Valley; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 27 1:33 pm Expired: Aug 28 10:00 am Duration: 20 hrs   27 mins  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES
Areas affected: Santa Susana Mountains; Eastern San Gabriel Mountains
Effective: Aug 27 1:33 pm Expired: Aug 28 10:00 am Duration: 20 hrs   27 mins  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY/ERRATIC WINDS AND LOW HUMIDITIES
Areas affected: Cuyama Valley; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 28 9:59 am Expired: Aug 28 3:00 pm Duration: 5 hrs   01 min  
RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND INSTABILITY ALONG WITH LOCALLY GUSTY/ERRATIC WINDS AND LOW HUMIDITIES
Areas affected: Santa Susana Mountains; Eastern San Gabriel Mountains
Effective: Aug 28 9:59 am Expired: Aug 28 3:00 pm Duration: 5 hrs   01 min  
SPS.gif   AIR QUALITY ALERT   (2 updates)
Areas affected: Eastern San Fernando Valley; Eastern San Gabriel Mountains; Interstate 5 Corridor; Los Angeles County Inland Coast including Downtown Los Angeles; Los Angeles County San Gabriel Valley; Santa Clarita Valley; Santa Susana Mountains; Western San Fernando Valley; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 25 7:55 am Expired: Aug 28 8:00 pm Duration: 3 days   12 hrs   05 mins  
Areas affected: Eastern San Fernando Valley; Eastern San Gabriel Mountains; Interstate 5 Corridor; Los Angeles County Inland Coast including Downtown Los Angeles; Los Angeles County San Gabriel Valley; Santa Clarita Valley; Santa Susana Mountains; Western San Fernando Valley; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Aug 25 6:39 am Expired: Aug 28 8:00 pm Duration: 3 days   13 hrs   21 mins  
HTY.gif   HEAT ADVISORY   (2 updates)
Areas affected: Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  
Areas affected: Santa Clarita Valley; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Los Angeles County San Gabriel Valley
Effective: Aug 28 11:16 am Expired: Aug 29 8:00 pm Duration: 1 day   8 hrs   44 mins  




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