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

Updates Every 15 Minutes
Spacer GifLast Update:September 4, 2026 - 7:00 am PDT
Humboldt County
SPS.gif   BEACH HAZARDS STATEMENT   (4 updates)
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 3 11:26 pm Expired: Sep 5 4:00 pm Duration: 1 day   16 hrs   34 mins  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 10:49 am Expired: Sep 4 7:00 pm Duration: 8 hrs   11 mins  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 2:44 pm Expired: Sep 4 10:45 pm Duration: 8 hrs   01 min  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 9:41 pm Expired: Sep 5 5:45 am Duration: 8 hrs   04 mins  
Mendocino County   2 alerts
SPS.gif   BEACH HAZARDS STATEMENT   (4 updates)
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 3 11:26 pm Expired: Sep 5 4:00 pm Duration: 1 day   16 hrs   34 mins  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 10:49 am Expired: Sep 4 7:00 pm Duration: 8 hrs   11 mins  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 2:44 pm Expired: Sep 4 10:45 pm Duration: 8 hrs   01 min  
  Areas affected: Southwestern Humboldt; Coastal Mendocino
Effective: Sep 4 9:41 pm Expired: Sep 5 5:45 am Duration: 8 hrs   04 mins  
FRY.gif   FROST ADVISORY  
  Areas affected: Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake
Effective: Sep 3 7:12 pm Expired: Sep 4 9:00 am Duration: 13 hrs   48 mins  
Lake County
FRY.gif   FROST ADVISORY  
  Areas affected: Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake
Effective: Sep 3 7:12 pm Expired: Sep 4 9:00 am Duration: 13 hrs   48 mins  
Trinity County
FRY.gif   FROST ADVISORY  
  Areas affected: Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake
Effective: Sep 3 7:12 pm Expired: Sep 4 9:00 am Duration: 13 hrs   48 mins  
Northern Lake County
FRY.gif   FROST ADVISORY  
  Areas affected: Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake
Effective: Sep 3 7:12 pm Expired: Sep 4 9:00 am Duration: 13 hrs   48 mins  
Los Angeles County   2 alerts
FLS.gif   COASTAL FLOOD ADVISORY   (2 updates)
  Areas affected: North Bay Interior Valleys
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: North Bay Interior Valleys
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
Marin County   2 alerts
FLS.gif   COASTAL FLOOD ADVISORY   (2 updates)
  Areas affected: North Bay Interior Valleys
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: North Bay Interior Valleys
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
Napa County
FLS.gif   COASTAL FLOOD ADVISORY   (2 updates)
  Areas affected: North Bay Interior Valleys
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: North Bay Interior Valleys
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
Sonoma County   2 alerts
FLS.gif   COASTAL FLOOD ADVISORY   (2 updates)
  Areas affected: North Bay Interior Valleys
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: North Bay Interior Valleys
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
Monterey County
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
San Francisco County
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
San Mateo County
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
Santa Cruz County
SPS.gif   BEACH HAZARDS STATEMENT   (3 updates)
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 3 11:21 pm Expired: Sep 4 9:00 am Duration: 9 hrs   39 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 8:39 am Expired: Sep 4 9:00 pm Duration: 12 hrs   21 mins  
  Areas affected: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 4 9:03 pm Expired: Sep 5 11:00 am Duration: 13 hrs   57 mins  
Orange County   2 alerts
SUY.gif   HIGH SURF ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 3 8:46 pm Expired: Sep 4 5:00 am Duration: 8 hrs   14 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 12:26 am Expired: Sep 4 2:00 pm Duration: 13 hrs   34 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 1:23 pm Expired: Sep 5 1:45 am Duration: 12 hrs   22 mins  
FLS.gif   COASTAL FLOOD ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 3 8:46 pm Expired: Sep 4 5:00 am Duration: 8 hrs   14 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 12:26 am Expired: Sep 4 2:00 pm Duration: 13 hrs   34 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 1:23 pm Expired: Sep 5 1:45 am Duration: 12 hrs   22 mins  
San Diego County   2 alerts
SUY.gif   HIGH SURF ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 3 8:46 pm Expired: Sep 4 5:00 am Duration: 8 hrs   14 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 12:26 am Expired: Sep 4 2:00 pm Duration: 13 hrs   34 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 1:23 pm Expired: Sep 5 1:45 am Duration: 12 hrs   22 mins  
FLS.gif   COASTAL FLOOD ADVISORY   (3 updates)
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 3 8:46 pm Expired: Sep 4 5:00 am Duration: 8 hrs   14 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 12:26 am Expired: Sep 4 2:00 pm Duration: 13 hrs   34 mins  
  Areas affected: San Diego County Coastal Areas; Orange County Coastal
Effective: Sep 4 1:23 pm Expired: Sep 5 1:45 am Duration: 12 hrs   22 mins  
San Luis Obispo County
SPS.gif   BEACH HAZARDS STATEMENT   (4 updates)
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 3 12:11 pm Expired: Sep 5 3:15 pm Duration: 2 days   3 hrs   04 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 10:58 am Expired: Sep 5 11:00 am Duration: 1 day   0 hrs   02 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 11:45 am Expired: Sep 5 11:00 am Duration: 23 hrs   15 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 9:24 pm Expired: Sep 8 11:00 pm Duration: 4 days   1 hr   36 mins  
Santa Barbara County   2 alerts
SPS.gif   BEACH HAZARDS STATEMENT   (4 updates)
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 3 12:11 pm Expired: Sep 5 3:15 pm Duration: 2 days   3 hrs   04 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 10:58 am Expired: Sep 5 11:00 am Duration: 1 day   0 hrs   02 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 11:45 am Expired: Sep 5 11:00 am Duration: 23 hrs   15 mins  
  Areas affected: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
Effective: Sep 4 9:24 pm Expired: Sep 8 11:00 pm Duration: 4 days   1 hr   36 mins  
WIY.gif   WIND ADVISORY  
  Areas affected: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
Effective: Sep 3 7:53 am Expired: Sep 4 6:00 am Duration: 22 hrs   07 mins  
Ventura County   2 alerts
SUY.gif   HIGH SURF ADVISORY   (4 updates)
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 3 12:11 pm Expired: Sep 5 3:15 pm Duration: 2 days   3 hrs   04 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 10:58 am Expired: Sep 5 11:00 am Duration: 1 day   0 hrs   02 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 11:45 am Expired: Sep 5 11:00 am Duration: 23 hrs   15 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 9:24 pm Expired: Sep 8 11:00 pm Duration: 4 days   1 hr   36 mins  
FLS.gif   COASTAL FLOOD ADVISORY   (4 updates)
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 3 12:11 pm Expired: Sep 5 3:15 pm Duration: 2 days   3 hrs   04 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 10:58 am Expired: Sep 5 11:00 am Duration: 1 day   0 hrs   02 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 11:45 am Expired: Sep 5 11:00 am Duration: 23 hrs   15 mins  
  Areas affected: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Sep 4 9:24 pm Expired: Sep 8 11:00 pm Duration: 4 days   1 hr   36 mins  
El Dorado County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Placer County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Nevada County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Plumas County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Alpine County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Lassen County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Mono County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  
Sierra County
LWY.gif   LAKE WIND ADVISORY  
  Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Sep 4 2:02 am Expired: Sep 4 9:00 pm Duration: 18 hrs   58 mins  


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