Weather Warnings for California

Issued by the National Weather Service

Current watches, warnings, and advisories for California
Alerts Updated: October 30, 2026, 3:34 am  UTC


Winter Weather Advisory issued October 29 at 6:46PM PDT until November 1 at 7:00AM PST by NWS Hanford CA

Summary: * WHAT...Snow expected. Total snow accumulations 4 to 7 inches between 7500 and 9500 feet, and up to 11 inches above 9500 feet. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Sequoia NP, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...From 8 AM PDT Saturday to 7 AM PST Sunday. * IMPACTS...Travel could be very difficult.
Severity:  Moderate    Effective:  October 29, 2026, 6:46 pm      Expires:  October 30, 2026, 4:00 am
Area:  Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Sequoia NP


Coastal Flood Advisory issued October 29 at 3:10PM PDT until October 31 at 6:00PM PDT by NWS San Francisco CA

Summary: * WHAT...Up to 1.9 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Pacific Coast. * WHEN...Until 6 PM PDT Saturday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.9 ft above normal (7.7 ft MLLW) at 02:39 PM Friday 10/30, and 1.5 feet above normal (7.3 ft MLLW) at 03:44 PM on Saturday 10/31. These predictions include up to 1.5 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
Severity:  Minor    Effective:  October 29, 2026, 3:10 pm      Expires:  October 30, 2026, 4:00 pm
Area:  Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast


Coastal Flood Advisory issued October 29 at 3:10PM PDT until November 1 at 6:00PM PST by NWS San Francisco CA

Summary: * WHAT...Up to 1.9 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. * WHEN...Until 6 PM PDT Sunday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. More substantial impacts are expected along bayshore Marin County where increased flooding is anticipated across low lying areas. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.9 ft above normal (7.7 ft MLLW) at 02:39 PM Friday 10/30, 1.5 feet above normal (7.3 ft MLLW) at 03:44 PM on Saturday 10/31, and 1.0 ft above normal (6.8 ft MLLW) on Sunday 11/01 at 3:59 PM. These predictions include up to 1.5 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
Severity:  Minor    Effective:  October 29, 2026, 3:10 pm      Expires:  October 30, 2026, 4:00 pm
Area:  San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast


Frost Advisory issued October 29 at 2:08PM PDT until October 30 at 10:00AM PDT by NWS Eureka CA

Summary: * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Humboldt Interior, Northern Mendocino Interior, Northern Coastal Humboldt, and Northern Lake. * WHEN...From 1 AM to 10 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Severity:  Minor    Effective:  October 29, 2026, 2:08 pm      Expires:  October 29, 2026, 10:15 pm
Area:  Northern Coastal Humboldt; Northeastern Interior Humboldt; Southeastern Interior Humboldt; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake


Coastal Flood Advisory issued October 29 at 1:29PM PDT until October 30 at 2:00PM PDT by NWS Los Angeles/Oxnard CA

Summary: * WHAT...Minor to moderate coastal flooding expected due to very high tides. * WHERE...San Luis Obispo County Beaches, Santa Barbara County Central Coast Beaches, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...Until 2 PM PDT Friday. * IMPACTS...Minor to moderate flooding of sea water is likely over vulnerable low-lying coastal areas, especially around the time of high tide, including over beach parking lots, bike paths, and harbor walkways. Moderate to significant beach erosion is likely. Isolated damage of structures due to sea water inundation is possible to the most vulnerable areas. * ADDITIONAL DETAILS...High tides will reach 7.5 ft (MLLW) noon Friday, which is about 1.5 feet above astronomical projections.
Severity:  Minor    Effective:  October 29, 2026, 1:29 pm      Expires:  October 30, 2026, 2:00 pm
Area:  San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches


Coastal Flood Advisory issued October 29 at 1:29PM PDT until October 30 at 2:00PM PDT by NWS Los Angeles/Oxnard CA

Summary: * WHAT...Minor to moderate coastal flooding expected due to very high tides. * WHERE...Catalina and Santa Barbara Islands. * WHEN...Until 2 PM PDT Friday. * IMPACTS...Minor to moderate flooding of sea water is likely over vulnerable low-lying coastal areas, especially around the time of high tide, including over beach parking lots, bike paths, and harbor walkways. Moderate to significant beach erosion is likely. Isolated damage of structures due to sea water inundation is possible to the most vulnerable areas. * ADDITIONAL DETAILS...High tides will reach 7.5 ft (MLLW) noon Friday, which is about 1.5 feet above astronomical projections.
Severity:  Minor    Effective:  October 29, 2026, 1:29 pm      Expires:  October 30, 2026, 2:00 pm
Area:  Catalina and Santa Barbara Islands


Coastal Flood Advisory issued October 29 at 1:21PM PDT until October 30 at 2:00PM PDT by NWS San Diego CA

Summary: * WHAT...Minor coastal flooding. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...For the Coastal Flood Advisory, from 1 PM today to 2 PM PDT Friday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Coastal residents and managers of infrastructure in the advisory area should prepare for rising water and take appropriate action to protect life and property. Highest tides will occur around noon on Friday. Observed high tides are 1.3 to 1.6 feet above astronomical tide predictions.
Severity:  Minor    Effective:  October 29, 2026, 1:21 pm      Expires:  October 29, 2026, 9:30 pm
Area:  San Diego County Coastal Areas; Orange County Coastal


Winter Weather Advisory issued October 29 at 11:13AM PDT until November 1 at 7:00AM PST by NWS Sacramento CA

Summary: * WHAT...Snow expected for elevations above 7000 feet. Total snow accumulations up to 8 inches, with up to 12 inches at the highest peaks. Minor accumulations of up to 2 inches possible down to 6000 feet. * WHERE...Northern Sierra above 7000 feet, including Highway 50 and Interstate 80. * WHEN...From 8 AM PDT Saturday to 7 AM PST Sunday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Snow levels initially 7000 to 8000 feet Saturday, lowering to 6000 to 7000 feet Saturday night into Sunday. Heaviest snowfall expected Saturday evening into Sunday.
Severity:  Moderate    Effective:  October 29, 2026, 11:13 am      Expires:  October 30, 2026, 3:00 pm
Area:  Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ft


Winter Weather Advisory issued October 29 at 10:39AM PDT until November 1 at 7:00AM PST by NWS Reno NV

Summary: * WHAT...Snow above 7000 ft. Snow accumulations of 2 to 5 inches with up to 9 inches along the highest peaks. Winds gusting as high as 50 mph. * WHERE...Greater Lake Tahoe Area. * WHEN...From 8 AM PDT Saturday to 7 AM PST Sunday. * IMPACTS...Plan on slippery road conditions. Heaviest snowfall expected late Saturday night. * ADDITIONAL DETAILS...Heaviest snowfall expected late Saturday night.
Severity:  Moderate    Effective:  October 29, 2026, 10:39 am      Expires:  October 30, 2026, 2:15 pm
Area:  Greater Lake Tahoe Area; Greater Lake Tahoe Area


Winter Weather Advisory issued October 29 at 10:39AM PDT until November 1 at 7:00AM PST by NWS Reno NV

Summary: * WHAT...Snow above 8000 ft. Snow accumulations of 3 to 6 inches with up to 12 inches along the highest peaks. Winds gusting as high as 45 mph. * WHERE...Mono County. * WHEN...From 8 AM PDT Saturday to 7 AM PST Sunday. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Heaviest snowfall expected late Saturday night.
Severity:  Moderate    Effective:  October 29, 2026, 10:39 am      Expires:  October 30, 2026, 2:15 pm
Area:  Mono