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

Updates Every 15 Minutes
Spacer GifLast Update:August 24, 2026 - 7:00 am PDT
Fresno County
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 23 4:36 pm Expired: Aug 24 2:00 am Duration: 9 hrs   24 mins  
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 24 1:36 am Expired: Aug 24 3:00 pm Duration: 13 hrs   24 mins  
Kern County   2 alerts
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 23 4:36 pm Expired: Aug 24 2:00 am Duration: 9 hrs   24 mins  
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 24 1:36 am Expired: Aug 24 3:00 pm Duration: 13 hrs   24 mins  
SVW.gif   EXTREME HEAT WARNING   (2 updates)
  Areas affected: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
Effective: Aug 23 4:36 pm Expired: Aug 24 2:00 am Duration: 9 hrs   24 mins  
  Areas affected: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
Effective: Aug 24 1:36 am Expired: Aug 24 3:00 pm Duration: 13 hrs   24 mins  
Kings County
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 23 4:36 pm Expired: Aug 24 2:00 am Duration: 9 hrs   24 mins  
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 24 1:36 am Expired: Aug 24 3:00 pm Duration: 13 hrs   24 mins  
Tulare County
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 23 4:36 pm Expired: Aug 24 2:00 am Duration: 9 hrs   24 mins  
  Areas affected: Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
Effective: Aug 24 1:36 am Expired: Aug 24 3:00 pm Duration: 13 hrs   24 mins  
Imperial County
SVW.gif   EXTREME HEAT WARNING   (2 updates)
  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 23 10:23 am Expired: Aug 24 3:00 am Duration: 16 hrs   37 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 24 1:07 am Expired: Aug 24 3:30 pm Duration: 14 hrs   23 mins  
Riverside County   3 alerts
SVW.gif   EXTREME HEAT WARNING   (7 updates)
  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 23 10:23 am Expired: Aug 24 3:00 am Duration: 16 hrs   37 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 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 24 1:07 am Expired: Aug 24 3:30 pm Duration: 14 hrs   23 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 24 1:10 am Expired: Aug 24 9:15 am Duration: 8 hrs   05 mins  
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
SWA.gif   EXTREME HEAT WATCH  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
HTY.gif   HEAT ADVISORY   (4 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Riverside County Mountains
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
Orange County   3 alerts
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
HTY.gif   HEAT ADVISORY   (4 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Orange County Inland
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Orange County Coastal
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
SVW.gif   EXTREME HEAT WARNING   (2 updates)
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Orange County Inland
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
San Bernardino County   3 alerts
SWA.gif   EXTREME HEAT WATCH   (3 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: Apple and Lucerne Valleys
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
HTY.gif   HEAT ADVISORY   (5 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 24 1:10 am Expired: Aug 24 9:15 am Duration: 8 hrs   05 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
SVW.gif   EXTREME HEAT WARNING   (2 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Apple and Lucerne Valleys
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
San Diego County   3 alerts
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
HTY.gif   HEAT ADVISORY   (5 updates)
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Diego County Inland Valleys
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Diego County Mountains
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Diego County Coastal Areas
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
SVW.gif   EXTREME HEAT WARNING   (6 updates)
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 23 9:40 pm Expired: Aug 24 6:15 am Duration: 8 hrs   35 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 24 1:10 am Expired: Aug 24 9:15 am Duration: 8 hrs   05 mins  
  Areas affected: Santa Ana Mountains and Foothills
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Diego County Inland Valleys
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
  Areas affected: San Diego County Mountains
Effective: Aug 24 1:58 am Expired: Aug 24 3:30 pm Duration: 13 hrs   32 mins  
Santa Barbara County   2 alerts
HTY.gif   HEAT ADVISORY   (3 updates)
  Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; 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 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Cuyama Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; 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; Los Angeles County San Gabriel Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
SWA.gif   EXTREME HEAT WATCH   (3 updates)
  Areas affected: Cuyama Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; 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; Los Angeles County San Gabriel Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; 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 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
Ventura County   2 alerts
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; 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 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; 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; Los Angeles County San Gabriel Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; 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; Los Angeles County San Gabriel Valley
Effective: Aug 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
  Areas affected: Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; 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 23 12:06 am Expired: Aug 25 10:00 am Duration: 2 days   9 hrs   54 mins  
Siskiyou County
FWW.gif   RED FLAG WARNING  
The National Weather Service in Medford has issued a Red Flag
  Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou Mountains; Eastern Rogue Valley; Southern Oregon Cascades
Effective: Aug 23 11:59 am Expired: Aug 24 5:00 am Duration: 17 hrs   01 min  


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