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

Updates Every 15 Minutes
Spacer GifLast Update:August 22, 2026 - 7:00 am PDT
Plumas County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Aug 21 11:22 am Expired: Aug 22 11:00 pm Duration: 1 day   11 hrs   38 mins  
Lassen County   2 alerts
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Aug 21 11:22 am Expired: Aug 22 11:00 pm Duration: 1 day   11 hrs   38 mins  
FWW.gif   RED FLAG WARNING   (3 updates)
The National Weather Service in Reno has issued a Red Flag
  Areas affected: Surprise Valley California; Eastern Lassen County; Northern Washoe County
Effective: Aug 21 7:37 am Expired: Aug 22 7:45 am Duration: 1 day   0 hrs   08 mins  
The National Weather Service in Reno has issued a Red Flag Warning
  Areas affected: Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties
Effective: Aug 21 7:37 am Expired: Aug 22 7:45 am Duration: 1 day   0 hrs   08 mins  
  Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 22 1:05 am Expired: Aug 22 11:00 pm Duration: 21 hrs   55 mins  
Sierra County   2 alerts
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Aug 21 11:22 am Expired: Aug 22 11:00 pm Duration: 1 day   11 hrs   38 mins  
FWW.gif   RED FLAG WARNING   (2 updates)
The National Weather Service in Reno has issued a Red Flag Warning
  Areas affected: Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties
Effective: Aug 21 7:37 am Expired: Aug 22 7:45 am Duration: 1 day   0 hrs   08 mins  
  Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 22 1:05 am Expired: Aug 22 11:00 pm Duration: 21 hrs   55 mins  
Imperial County
SVW.gif   EXTREME HEAT WARNING   (3 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 21 12:15 pm Expired: Aug 22 3:00 am Duration: 14 hrs   45 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 22 12:45 am Expired: Aug 22 3:00 pm Duration: 14 hrs   15 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 22 11:42 am Expired: Aug 23 3:00 am Duration: 15 hrs   18 mins  
Riverside County   3 alerts
SVW.gif   EXTREME HEAT WARNING   (6 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 21 12:15 pm Expired: Aug 22 3:00 am Duration: 14 hrs   45 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 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 22 12:45 am Expired: Aug 22 3:00 pm Duration: 14 hrs   15 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 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 22 11:42 am Expired: Aug 23 3:00 am Duration: 15 hrs   18 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
HTY.gif   HEAT ADVISORY   (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 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  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 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
Inyo County
SVW.gif   EXTREME HEAT WARNING  
  Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; San Bernardino County-Upper Colorado River Valley; Las Vegas Valley; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 21 7:31 pm Expired: Aug 22 4:00 pm Duration: 20 hrs   29 mins  
San Bernardino County   3 alerts
SVW.gif   EXTREME HEAT WARNING  
  Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; San Bernardino County-Upper Colorado River Valley; Las Vegas Valley; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 21 7:31 pm Expired: Aug 22 4:00 pm Duration: 20 hrs   29 mins  
HTY.gif   HEAT ADVISORY   (6 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 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  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 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
  Areas affected: Apple and Lucerne Valleys
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
  Areas affected: San Bernardino County Mountains
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
Modoc County
FWW.gif   RED FLAG WARNING   (4 updates)
The National Weather Service in Reno has issued a Red Flag
  Areas affected: Surprise Valley California; Eastern Lassen County; Northern Washoe County
Effective: Aug 21 7:37 am Expired: Aug 22 7:45 am Duration: 1 day   0 hrs   08 mins  
  Areas affected: Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 21 8:34 pm Expired: Aug 22 5:00 am Duration: 8 hrs   26 mins  
  Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 22 1:05 am Expired: Aug 22 11:00 pm Duration: 21 hrs   55 mins  
  Areas affected: Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 22 4:16 am Expired: Aug 22 5:45 pm Duration: 13 hrs   29 mins  
Siskiyou County
FWW.gif   RED FLAG WARNING   (2 updates)
  Areas affected: Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 21 8:34 pm Expired: Aug 22 5:00 am Duration: 8 hrs   26 mins  
  Areas affected: Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 22 4:16 am Expired: Aug 22 5:45 pm Duration: 13 hrs   29 mins  
Orange County   2 alerts
HTY.gif   HEAT ADVISORY   (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 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  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 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
San Diego County   3 alerts
HTY.gif   HEAT ADVISORY   (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 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  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 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
SVW.gif   EXTREME HEAT WARNING   (3 updates)
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 9:35 pm Expired: Aug 22 6:30 am Duration: 8 hrs   55 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 22 2:56 am Expired: Aug 22 2:15 pm Duration: 11 hrs   19 mins  
  Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
SWA.gif   EXTREME HEAT WATCH   (2 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Aug 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
  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 22 1:10 pm Expired: Aug 22 10:00 pm Duration: 8 hrs   50 mins  
Alameda County
SPS.gif   CHILD ABDUCTION EMERGENCY  
  Areas affected: Alameda, CA,Santa Clara, CA
Effective: Aug 22 6:53 am Expired: Aug 22 8:53 am Duration: 2 hrs   00 mins  
Santa Clara County
SPS.gif   CHILD ABDUCTION EMERGENCY  
  Areas affected: Alameda, CA,Santa Clara, CA
Effective: Aug 22 6:53 am Expired: Aug 22 8:53 am Duration: 2 hrs   00 mins  


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