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

Updates Every 15 Minutes
Spacer GifLast Update:April 1, 2026 - 7:00 am PDT
El Dorado County
WWY.gif   WINTER WEATHER ADVISORY   (4 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Mar 31 7:40 pm Expired: Apr 1 5:00 am Duration: 9 hrs   20 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Apr 1 4:59 am Expired: Apr 2 8:00 am Duration: 1 day   3 hrs   01 min  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
W. Slope N. Sierra
WWY.gif   WINTER WEATHER ADVISORY   (2 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Placer County
WWY.gif   WINTER WEATHER ADVISORY   (4 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Mar 31 7:40 pm Expired: Apr 1 5:00 am Duration: 9 hrs   20 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Apr 1 4:59 am Expired: Apr 2 8:00 am Duration: 1 day   3 hrs   01 min  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Nevada County
WWY.gif   WINTER WEATHER ADVISORY   (4 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Mar 31 7:40 pm Expired: Apr 1 5:00 am Duration: 9 hrs   20 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Apr 1 4:59 am Expired: Apr 2 8:00 am Duration: 1 day   3 hrs   01 min  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Amador County
WWY.gif   WINTER WEATHER ADVISORY   (2 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Alpine County
WWY.gif   WINTER WEATHER ADVISORY   (4 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Mar 31 7:40 pm Expired: Apr 1 5:00 am Duration: 9 hrs   20 mins  
  Areas affected: Greater Lake Tahoe Area; Greater Lake Tahoe Area
Effective: Apr 1 4:59 am Expired: Apr 2 8:00 am Duration: 1 day   3 hrs   01 min  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Calaveras County
WWY.gif   WINTER WEATHER ADVISORY   (2 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Sierra County   2 alerts
WWY.gif   WINTER WEATHER ADVISORY   (2 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
HWW.gif   HIGH WIND WARNING   (2 updates)
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Mar 31 10:35 am Expired: Apr 1 5:00 pm Duration: 1 day   6 hrs   25 mins  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Apr 1 2:13 pm Expired: Apr 2 11:00 am Duration: 20 hrs   47 mins  
Tuolumne County
WWY.gif   WINTER WEATHER ADVISORY   (5 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Mar 31 9:46 pm Expired: Apr 1 8:00 am Duration: 10 hrs   14 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 7:31 am Expired: Apr 1 4:00 pm Duration: 8 hrs   29 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
Yuba County
WWY.gif   WINTER WEATHER ADVISORY   (2 updates)
  Areas affected: West Slope Northern Sierra Nevada
Effective: Mar 31 7:41 pm Expired: Apr 1 5:15 pm Duration: 21 hrs   34 mins  
  Areas affected: West Slope Northern Sierra Nevada
Effective: Apr 1 11:59 am Expired: Apr 1 8:00 pm Duration: 8 hrs   01 min  
Plumas County
HWW.gif   HIGH WIND WARNING   (2 updates)
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Mar 31 10:35 am Expired: Apr 1 5:00 pm Duration: 1 day   6 hrs   25 mins  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Apr 1 2:13 pm Expired: Apr 2 11:00 am Duration: 20 hrs   47 mins  
Lassen County
HWW.gif   HIGH WIND WARNING   (2 updates)
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Mar 31 10:35 am Expired: Apr 1 5:00 pm Duration: 1 day   6 hrs   25 mins  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties
Effective: Apr 1 2:13 pm Expired: Apr 2 11:00 am Duration: 20 hrs   47 mins  
Del Norte County
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: Coastal Del Norte; Del Norte Interior
Effective: Mar 31 11:17 pm Expired: Apr 1 7:30 am Duration: 8 hrs   13 mins  
  Areas affected: Coastal Del Norte; Del Norte Interior
Effective: Apr 1 6:21 am Expired: Apr 1 1:00 pm Duration: 6 hrs   39 mins  
  Areas affected: Coastal Del Norte; Del Norte Interior
Effective: Apr 1 12:51 pm Expired: Apr 1 3:00 pm Duration: 2 hrs   09 mins  
Fresno County
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Mar 31 9:46 pm Expired: Apr 1 8:00 am Duration: 10 hrs   14 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 7:31 am Expired: Apr 1 4:00 pm Duration: 8 hrs   29 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
Madera County
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Mar 31 9:46 pm Expired: Apr 1 8:00 am Duration: 10 hrs   14 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 7:31 am Expired: Apr 1 4:00 pm Duration: 8 hrs   29 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
Mariposa County
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Mar 31 9:46 pm Expired: Apr 1 8:00 am Duration: 10 hrs   14 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 7:31 am Expired: Apr 1 4:00 pm Duration: 8 hrs   29 mins  
  Areas affected: Yosemite NP outside of the valley; Upper San Joaquin River
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
Inyo County
WIY.gif   WIND ADVISORY   (2 updates)
  Areas affected: Owens Valley; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve
Effective: Mar 31 10:51 am Expired: Apr 1 2:00 am Duration: 15 hrs   09 mins  
  Areas affected: Owens Valley; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve
Effective: Apr 1 12:35 am Expired: Apr 1 5:00 am Duration: 4 hrs   25 mins  
San Bernardino County
WIY.gif   WIND ADVISORY   (9 updates)
  Areas affected: Owens Valley; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve
Effective: Mar 31 10:51 am Expired: Apr 1 2:00 am Duration: 15 hrs   09 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Mar 31 9:49 pm Expired: Apr 1 6:30 am Duration: 8 hrs   41 mins  
  Areas affected: Western Mojave Desert
Effective: Mar 31 10:51 am Expired: Apr 1 2:00 am Duration: 15 hrs   09 mins  
  Areas affected: Owens Valley; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve
Effective: Apr 1 12:35 am Expired: Apr 1 5:00 am Duration: 4 hrs   25 mins  
  Areas affected: Western Mojave Desert
Effective: Apr 1 12:35 am Expired: Apr 1 5:00 am Duration: 4 hrs   25 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 3:01 am Expired: Apr 1 3:30 pm Duration: 12 hrs   29 mins  
  Areas affected: Western Mojave Desert
Effective: Apr 1 5:25 am Expired: Apr 1 6:00 pm Duration: 12 hrs   35 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 11:37 am Expired: Apr 1 10:15 pm Duration: 10 hrs   38 mins  
  Areas affected: Western Mojave Desert
Effective: Apr 1 12:53 pm Expired: Apr 2 6:00 am Duration: 17 hrs   07 mins  
Kern County   2 alerts
HWW.gif   HIGH WIND WARNING   (3 updates)
  Areas affected: Mojave Desert Slopes
Effective: Mar 31 11:26 pm Expired: Apr 1 8:00 am Duration: 8 hrs   34 mins  
  Areas affected: Mojave Desert Slopes
Effective: Apr 1 7:32 am Expired: Apr 1 4:00 pm Duration: 8 hrs   28 mins  
  Areas affected: Mojave Desert Slopes
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: Indian Wells Valley; Mojave Desert
Effective: Mar 31 11:26 pm Expired: Apr 1 8:00 am Duration: 8 hrs   34 mins  
  Areas affected: Indian Wells Valley; Mojave Desert
Effective: Apr 1 7:32 am Expired: Apr 1 4:00 pm Duration: 8 hrs   28 mins  
  Areas affected: Indian Wells Valley; Mojave Desert
Effective: Apr 1 2:19 pm Expired: Apr 1 10:30 pm Duration: 8 hrs   11 mins  
Modoc County   2 alerts
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Modoc County
Effective: Mar 31 10:42 am Expired: Apr 1 1:00 am Duration: 14 hrs   18 mins  
  Areas affected: Modoc County
Effective: Apr 1 12:12 am Expired: Apr 1 5:15 pm Duration: 17 hrs   03 mins  
  Areas affected: Modoc County
Effective: Apr 1 11:16 am Expired: Apr 1 11:00 pm Duration: 11 hrs   44 mins  
WIY.gif   WIND ADVISORY   (8 updates)
  Areas affected: Surprise Valley California; Northern Washoe County
Effective: Mar 31 10:35 am Expired: Apr 1 5:00 pm Duration: 1 day   6 hrs   25 mins  
  Areas affected: Modoc County
Effective: Mar 31 10:16 am Expired: Apr 1 1:00 am Duration: 14 hrs   44 mins  
  Areas affected: Modoc County
Effective: Apr 1 12:57 am Expired: Apr 1 5:15 pm Duration: 16 hrs   18 mins  
  Areas affected: Modoc County
Effective: Apr 1 1:18 am Expired: Apr 1 5:15 pm Duration: 15 hrs   57 mins  
  Areas affected: Modoc County
Effective: Apr 1 11:03 am Expired: Apr 1 11:00 pm Duration: 11 hrs   57 mins  
  Areas affected: Surprise Valley California; Northern Washoe County
Effective: Apr 1 2:13 pm Expired: Apr 2 11:00 am Duration: 20 hrs   47 mins  
  Areas affected: Modoc County
Effective: Apr 1 2:18 pm Expired: Apr 1 11:00 pm Duration: 8 hrs   42 mins  
  Areas affected: Modoc County; Central and Eastern Lake County
Effective: Apr 1 5:05 pm Expired: Apr 1 11:00 pm Duration: 5 hrs   55 mins  
Mono County   2 alerts
WWY.gif   WINTER WEATHER ADVISORY  
  Areas affected: Mono
Effective: Mar 31 7:40 pm Expired: Apr 1 5:00 am Duration: 9 hrs   20 mins  
HWW.gif   HIGH WIND WARNING   (2 updates)
  Areas affected: Mono
Effective: Mar 31 10:35 am Expired: Apr 1 5:00 pm Duration: 1 day   6 hrs   25 mins  
  Areas affected: Mono
Effective: Apr 1 2:13 pm Expired: Apr 2 11:00 am Duration: 20 hrs   47 mins  
Riverside County   2 alerts
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Mar 31 9:49 pm Expired: Apr 1 6:30 am Duration: 8 hrs   41 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 3:01 am Expired: Apr 1 3:30 pm Duration: 12 hrs   29 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 11:37 am Expired: Apr 1 10:15 pm Duration: 10 hrs   38 mins  
SPS.gif   AIR QUALITY ALERT  
  Areas affected: Coachella Valley
Effective: Apr 1 1:24 pm Expired: Apr 3 12:00 am Duration: 1 day   10 hrs   36 mins  
San Diego County
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Mar 31 9:49 pm Expired: Apr 1 6:30 am Duration: 8 hrs   41 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 3:01 am Expired: Apr 1 3:30 pm Duration: 12 hrs   29 mins  
  Areas affected: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Apr 1 11:37 am Expired: Apr 1 10:15 pm Duration: 10 hrs   38 mins  
Siskiyou County   3 alerts
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Western Siskiyou County
Effective: Mar 31 10:42 am Expired: Apr 1 1:00 am Duration: 14 hrs   18 mins  
  Areas affected: Western Siskiyou County
Effective: Apr 1 12:12 am Expired: Apr 1 5:15 pm Duration: 17 hrs   03 mins  
  Areas affected: Western Siskiyou County
Effective: Apr 1 11:16 am Expired: Apr 1 11:00 pm Duration: 11 hrs   44 mins  
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: Central Siskiyou County
Effective: Apr 1 1:18 am Expired: Apr 1 5:00 pm Duration: 15 hrs   42 mins  
  Areas affected: Central Siskiyou County
Effective: Apr 1 11:03 am Expired: Apr 1 5:00 pm Duration: 5 hrs   57 mins  
  Areas affected: Central Siskiyou County
Effective: Apr 1 2:18 pm Expired: Apr 1 5:00 pm Duration: 2 hrs   42 mins  
FZA.gif   FREEZE WATCH   (3 updates)
  Areas affected: Western Siskiyou County
Effective: Apr 1 11:03 am Expired: Apr 1 11:00 pm Duration: 11 hrs   57 mins  
  Areas affected: Western Siskiyou County
Effective: Apr 1 2:18 pm Expired: Apr 1 11:00 pm Duration: 8 hrs   42 mins  
  Areas affected: Western Siskiyou County
Effective: Apr 1 5:05 pm Expired: Apr 2 3:00 am Duration: 9 hrs   55 mins  
Trinity County
WWY.gif   WINTER WEATHER ADVISORY   (3 updates)
  Areas affected: Northern Trinity
Effective: Mar 31 11:17 pm Expired: Apr 1 7:30 am Duration: 8 hrs   13 mins  
  Areas affected: Northern Trinity
Effective: Apr 1 6:21 am Expired: Apr 1 4:30 pm Duration: 10 hrs   09 mins  
  Areas affected: Northern Trinity
Effective: Apr 1 12:53 pm Expired: Apr 1 9:00 pm Duration: 8 hrs   07 mins  
Santa Barbara County
WIY.gif   WIND ADVISORY   (2 updates)
  Areas affected: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
  Areas affected: Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
Ventura County   2 alerts
WIY.gif   WIND ADVISORY   (3 updates)
  Areas affected: Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
  Areas affected: Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
  Areas affected: Santa Susana Mountains
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
WIY.gif   HIGH WIND WATCH   (2 updates)
  Areas affected: Santa Susana Mountains
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
  Areas affected: Western Santa Monica Mountains Recreational Area; Western San Gabriel Mountains and Highway 14 Corridor
Effective: Apr 1 11:24 am Expired: Apr 2 1:00 am Duration: 13 hrs   36 mins  
Imperial County
SPS.gif   AIR QUALITY ALERT  
  Areas affected: Imperial County Southwest; Imperial County West; Imperial Valley
Effective: Apr 1 11:33 am Expired: Apr 2 11:15 pm Duration: 1 day   11 hrs   42 mins  


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