Weather Warnings for California

Issued by the National Weather Service

Current Watches, Warnings and Advisories for California Issued by the National Weather Service
Alerts Updated: December 17, 2018, 1:21 am  UTC


Wind Advisory issued December 17 at 1:21AM PST until December 18 at 1:00AM PST by NWS

Summary: ...A WIND ADVISORY IS IN EFFECT FROM 2 PM PST THIS AFTERNOON UNTIL 1 AM PST TUESDAY... The National Weather Service in Hanford has issued a Wind Advisory for the Kern County mountains and desert, which is in effect from 2 PM PST this afternoon until 1 AM PST Tuesday. * WINDS...Westerly 15 to 25 mph, with gusts near 50 mph through
Severity:  Minor    Effective:  December 17, 2018, 2:00 pm      Expires:  December 18, 2018, 1:00 am
Area:  Indian Wells Valley; Kern County Mountains; Southeastern Kern County Desert


High Surf Advisory issued December 17 at 1:15AM PST until December 18 at 10:00PM PST by NWS

Summary: ...HIGH SURF THROUGH TUESDAY... .A large, long-period west-northwest swell from 290 degrees will move into the coastal waters this morning. This will create high surf and strong rip currents through Tuesday evening. Minor coastal flooding will be possible in low-lying coastal areas during high tides. Swell and surf will gradually subside late
Severity:  Minor    Effective:  December 17, 2018, 8:00 am      Expires:  December 18, 2018, 10:00 pm
Area:  Orange County Coastal; San Diego County Coastal Areas


Winter Weather Advisory issued December 16 at 10:24PM PST until December 17 at 4:00PM PST by NWS

Summary: ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY... * WHAT...Snow. Total snow accumulation of up to 9 inches at and above 6000 feet. * WHERE...Sierra Nevada from Yosemite to Kings Canyon, with the highest accumulation around Yosemite National Park.
Severity:  Minor    Effective:  December 16, 2018, 10:24 pm      Expires:  December 17, 2018, 4:00 pm
Area:  Sierra Nevada from Yosemite to Kings Canyon


High Surf Warning issued December 16 at 10:16PM PST until December 17 at 9:00PM PST by NWS

Summary: .Very large, long period westerly swell will cause surf to rapidly increase in height through this evening along the Northwest California coast. ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 9 PM PST MONDAY... * WAVES AND SURF...Breaking waves rapidly building to around 30 feet along the Northwest California coast this evening. The
Severity:  Moderate    Effective:  December 16, 2018, 10:16 pm      Expires:  December 17, 2018, 9:00 pm
Area:  Coastal Del Norte; Mendocino Coast; Northern Humboldt Coast; Southwestern Humboldt


High Surf Warning issued December 16 at 9:19PM PST until December 17 at 9:00PM PST by NWS

Summary: ...A powerful west to northwest swell, the largest so far this season, will impact the coast tonight through Monday with breaking waves of 25 to 40 feet... ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 9 PM PST MONDAY... * WAVES AND SURF...A powerful west to northwest swell will create breakers of 25 to 40 feet, with breakers occasionally
Severity:  Moderate    Effective:  December 16, 2018, 9:19 pm      Expires:  December 17, 2018, 9:00 pm
Area:  Coastal North Bay Including Point Reyes National Seashore; Northern Monterey Bay; San Francisco; San Francisco Peninsula Coast; Southern Monterey Bay and Big Sur Coast


High Wind Watch issued December 16 at 9:19PM PST until December 18 at 10:00PM PST by NWS

Summary: ...Another front to bring strong winds late Monday into Tuesday... .Winds have diminished this evening, thus the high wind warnings and wind advisories have been canceled. However, another front will bring strong winds to the coast and portions of eastern Klamath and Lake Counties late Monday and Tuesday.
Severity:  Severe    Effective:  December 17, 2018, 4:00 pm      Expires:  December 18, 2018, 10:00 pm
Area:  Modoc County


Coastal Flood Advisory issued December 16 at 8:40PM PST until December 18 at 9:00AM PST by NWS

Summary: .A large, long period west-northwest swell will bring very large and potentially damaging surf to the Central Coast late tonight through Tuesday morning. Some of this long period swell energy is expected to bring high surf conditions to west facing beaches of Los Angeles, Ventura, and southern Santa Barbara counties Monday into Tuesday, but not as significant as the Central Coast.
Severity:  Minor    Effective:  December 16, 2018, 9:00 pm      Expires:  December 18, 2018, 9:00 am
Area:  San Luis Obispo County Central Coast; Santa Barbara County Central Coast


High Surf Warning issued December 16 at 8:40PM PST until December 18 at 9:00AM PST by NWS

Summary: .A large, long period west-northwest swell will bring very large and potentially damaging surf to the Central Coast late tonight through Tuesday morning. Some of this long period swell energy is expected to bring high surf conditions to west facing beaches of Los Angeles, Ventura, and southern Santa Barbara counties Monday into Tuesday, but not as significant as the Central Coast.
Severity:  Moderate    Effective:  December 16, 2018, 9:00 pm      Expires:  December 18, 2018, 9:00 am
Area:  San Luis Obispo County Central Coast; Santa Barbara County Central Coast


High Surf Advisory issued December 16 at 8:40PM PST until December 18 at 10:00PM PST by NWS

Summary: .A large, long period west-northwest swell will bring very large and potentially damaging surf to the Central Coast late tonight through Tuesday morning. Some of this long period swell energy is expected to bring high surf conditions to west facing beaches of Los Angeles, Ventura, and southern Santa Barbara counties Monday into Tuesday, but not as significant as the Central Coast.
Severity:  Minor    Effective:  December 17, 2018, 4:00 am      Expires:  December 18, 2018, 10:00 pm
Area:  Santa Barbara County South Coast


High Surf Advisory issued December 16 at 8:40PM PST until December 18 at 10:00PM PST by NWS

Summary: .A large, long period west-northwest swell will bring very large and potentially damaging surf to the Central Coast late tonight through Tuesday morning. Some of this long period swell energy is expected to bring high surf conditions to west facing beaches of Los Angeles, Ventura, and southern Santa Barbara counties Monday into Tuesday, but not as significant as the Central Coast.
Severity:  Minor    Effective:  December 17, 2018, 4:00 am      Expires:  December 18, 2018, 10:00 pm
Area:  Ventura County Coast


High Surf Advisory issued December 16 at 8:40PM PST until December 18 at 10:00PM PST by NWS

Summary: .A large, long period west-northwest swell will bring very large and potentially damaging surf to the Central Coast late tonight through Tuesday morning. Some of this long period swell energy is expected to bring high surf conditions to west facing beaches of Los Angeles, Ventura, and southern Santa Barbara counties Monday into Tuesday, but not as significant as the Central Coast.
Severity:  Minor    Effective:  December 17, 2018, 4:00 am      Expires:  December 18, 2018, 10:00 pm
Area:  Catalina and Santa Barbara Islands; Los Angeles County Coast including Downtown Los Angeles


Winter Weather Advisory issued December 16 at 2:47PM PST until December 17 at 10:00AM PST by NWS

Summary: ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST MONDAY... * CHANGES...Lake level totals reduced slightly. * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches above 7000 feet, with up to 14 inches on the crest. Between 6500 and 7000 feet, 3 to 7 inches are expected. At lake level, up to
Severity:  Minor    Effective:  December 16, 2018, 6:00 pm      Expires:  December 17, 2018, 10:00 am
Area:  Greater Lake Tahoe Area


Winter Weather Advisory issued December 16 at 10:28AM PST until December 17 at 6:00AM PST by NWS

Summary: ...Heavy Mountain Snow Late Today Through Noon Monday... .A winter storm will bring moderate to heavy snow to the mountains of Western Plumas County and the Northern and Central Sierra Nevada above 4500 to 5000 feet late today into late Monday morning. Snow levels will start out near major pass levels but lower tonight into Monday morning when the most significant
Severity:  Minor    Effective:  December 16, 2018, 2:00 pm      Expires:  December 17, 2018, 6:00 am
Area:  Western Plumas County, Lassen Park


Winter Storm Warning issued December 16 at 10:28AM PST until December 17 at 10:00AM PST by NWS

Summary: ...Heavy Mountain Snow Late Today Through Noon Monday... .A winter storm will bring moderate to heavy snow to the mountains of Western Plumas County and the Northern and Central Sierra Nevada above 4500 to 5000 feet late today into late Monday morning. Snow levels will start out near major pass levels but lower tonight into Monday morning when the most significant
Severity:  Moderate    Effective:  December 16, 2018, 2:00 pm      Expires:  December 17, 2018, 10:00 am
Area:  West Slope Northern Sierra Nevada