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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:July 20, 2026 - 7:00 am PDT
Humboldt County
FWW.gif   RED FLAG WARNING   (4 updates)
The National Weather Service in Eureka has issued a Red Flag
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 19 3:37 pm Expired: Jul 20 9:00 am Duration: 17 hrs   23 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 8:31 am Expired: Jul 20 4:45 pm Duration: 8 hrs   14 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 4:20 pm Expired: Jul 20 6:00 pm Duration: 1 hr   40 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 5:34 pm Expired: Jul 20 6:45 pm Duration: 1 hr   11 mins  
Siskiyou County   2 alerts
FWW.gif   RED FLAG WARNING   (4 updates)
The National Weather Service in Eureka has issued a Red Flag
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 19 3:37 pm Expired: Jul 20 9:00 am Duration: 17 hrs   23 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 8:31 am Expired: Jul 20 4:45 pm Duration: 8 hrs   14 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 4:20 pm Expired: Jul 20 6:00 pm Duration: 1 hr   40 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 5:34 pm Expired: Jul 20 6:45 pm Duration: 1 hr   11 mins  
FWA.gif   FIRE WEATHER WATCH  
The National Weather Service in Medford has issued a Fire Weather
  Areas affected: Umpqua National Forest; Siskiyou Mountains; Eastern Rogue Valley; Southern Oregon Cascades; Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
Effective: Jul 20 12:40 pm Expired: Jul 21 5:15 am Duration: 16 hrs   35 mins  
Trinity County
FWW.gif   RED FLAG WARNING   (4 updates)
The National Weather Service in Eureka has issued a Red Flag
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 19 3:37 pm Expired: Jul 20 9:00 am Duration: 17 hrs   23 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 8:31 am Expired: Jul 20 4:45 pm Duration: 8 hrs   14 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 4:20 pm Expired: Jul 20 6:00 pm Duration: 1 hr   40 mins  
  Areas affected: Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans; Eastern Interior Humboldt Including Willow Creek and Hoopa; Northwestern Trinity Including Salyer and Big Bar; Northeastern Trinity Including Trinity Lake; Eastern Trinity Including Weaverville and Hayfork; Southern Trinity Including Ruth Lake and the Yolla Bollys
Effective: Jul 20 5:34 pm Expired: Jul 20 6:45 pm Duration: 1 hr   11 mins  
Mono County
FFA.gif   FLOOD WATCH   (4 updates)
  Areas affected: Mono; Mineral and Southern Lyon Counties
Effective: Jul 19 11:41 am Expired: Jul 20 11:45 am Duration: 1 day   0 hrs   04 mins  
  Areas affected: Mono; Mineral and Southern Lyon Counties
Effective: Jul 20 3:27 am Expired: Jul 20 11:00 pm Duration: 19 hrs   33 mins  
  Areas affected: Mono; Mineral and Southern Lyon Counties
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  
  Areas affected: Mono; Mineral and Southern Lyon Counties
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  
Orange County   2 alerts
SUY.gif   HIGH SURF ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 19 8:19 pm Expired: Jul 20 6:30 am Duration: 10 hrs   11 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 20 2:34 am Expired: Jul 20 2:00 pm Duration: 11 hrs   26 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 20 2:06 pm Expired: Jul 20 11:15 pm Duration: 9 hrs   09 mins  
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
San Diego County   3 alerts
SUY.gif   HIGH SURF ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 19 8:19 pm Expired: Jul 20 6:30 am Duration: 10 hrs   11 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 20 2:34 am Expired: Jul 20 2:00 pm Duration: 11 hrs   26 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Jul 20 2:06 pm Expired: Jul 20 11:15 pm Duration: 9 hrs   09 mins  
HTY.gif   HEAT ADVISORY   (4 updates)
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
San Luis Obispo County
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 19 6:43 pm Expired: Jul 20 10:15 am Duration: 15 hrs   32 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 20 10:38 am Expired: Jul 21 10:45 am Duration: 1 day   0 hrs   07 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 20 8:13 pm Expired: Jul 21 10:00 am Duration: 13 hrs   47 mins  
Santa Barbara County   2 alerts
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 19 6:43 pm Expired: Jul 20 10:15 am Duration: 15 hrs   32 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 20 10:38 am Expired: Jul 21 10:45 am Duration: 1 day   0 hrs   07 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
Effective: Jul 20 8:13 pm Expired: Jul 21 10:00 am Duration: 13 hrs   47 mins  
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Cuyama Valley; Santa Ynez Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains
Effective: Jul 20 12:26 pm Expired: Jul 21 2:00 pm Duration: 1 day   1 hr   34 mins  
  Areas affected: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Jul 20 12:26 pm Expired: Jul 21 2:00 pm Duration: 1 day   1 hr   34 mins  
Ventura County   3 alerts
SUY.gif   HIGH SURF ADVISORY   (3 updates)
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Jul 19 6:43 pm Expired: Jul 20 10:15 am Duration: 15 hrs   32 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Jul 20 10:38 am Expired: Jul 21 10:45 am Duration: 1 day   0 hrs   07 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Jul 20 8:13 pm Expired: Jul 21 10:00 am Duration: 13 hrs   47 mins  
HTY.gif   HEAT ADVISORY   (2 updates)
  Areas affected: Cuyama Valley; Santa Ynez Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains
Effective: Jul 20 12:26 pm Expired: Jul 21 2:00 pm Duration: 1 day   1 hr   34 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; Southern Ventura County Mountains; Northern 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; Los Angeles County San Gabriel Valley
Effective: Jul 20 12:26 pm Expired: Jul 21 2:00 pm Duration: 1 day   1 hr   34 mins  
SWA.gif   EXTREME HEAT WATCH  
  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; Southern Ventura County Mountains; Northern 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; Los Angeles County San Gabriel Valley
Effective: Jul 20 12:26 pm Expired: Jul 21 2:00 pm Duration: 1 day   1 hr   34 mins  
Imperial County
SWA.gif   EXTREME HEAT WATCH  
  Areas affected: Parker Valley; Yuma; Imperial County Southwest; Salton Sea; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley
Effective: Jul 20 11:54 am Expired: Jul 21 5:00 am Duration: 17 hrs   06 mins  
Riverside County   2 alerts
SWA.gif   EXTREME HEAT WATCH   (3 updates)
  Areas affected: Parker Valley; Yuma; Imperial County Southwest; Salton Sea; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley
Effective: Jul 20 11:54 am Expired: Jul 21 5:00 am Duration: 17 hrs   06 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
HTY.gif   HEAT ADVISORY   (6 updates)
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
San Bernardino County   2 alerts
SWA.gif   EXTREME HEAT WATCH   (3 updates)
  Areas affected: Kofa; Central La Paz; Southeast Yuma County; Gila River Valley; Joshua Tree NP West; Joshua Tree NP East
Effective: Jul 20 11:54 am Expired: Jul 21 5:00 am Duration: 17 hrs   06 mins  
  Areas affected: Apple and Lucerne Valleys
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: Apple and Lucerne Valleys
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
HTY.gif   HEAT ADVISORY   (4 updates)
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Jul 20 12:11 pm Expired: Jul 20 10:15 pm Duration: 10 hrs   04 mins  
  Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Effective: Jul 20 9:26 pm Expired: Jul 21 6:15 am Duration: 8 hrs   49 mins  
El Dorado County
FFA.gif   FLOOD WATCH  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  
Placer County
FFA.gif   FLOOD WATCH  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  
Nevada County
FFA.gif   FLOOD WATCH  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  
Alpine County
FFA.gif   FLOOD WATCH  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
Effective: Jul 20 12:17 pm Expired: Jul 21 12:30 am Duration: 12 hrs   13 mins  


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