National Weather Service United States Department of Commerce

Strong Storm Systems Impacting Both Coasts

The storm system on the East Coast is bringing widespread rain to the Mid-Atlantic and the Northeast. Freezing rain and snow is possible in interior, southern New England. A powerful Pacific storm system will bring heavy rain, high elevation snow, gusty winds, and extremely rough surf to the Pacific Northwest and northern California. Read More >

Click a location below for detailed forecast.

Last Map Update: Sun, Dec. 16, 2018 at 2:56:13 pm PST

National Weather Service San Francisco Bay Area, CANational Weather Service San Joaquin Valley, CANational Weather Service Las Vegas, NV
National Weather Service Honolulu, HIZoom

National Weather Service NWS Phoenix
National Weather Service Honolulu, HINational Weather Service San Diego, CANational Weather Service San Diego, CA

A moderate long period 7 to 10 foot swell will create dangerous wave conditions along the Central Coast beaches through Sunday evening. High surf of 8 to 12 feet along west to northwest facing beaches will continue through tonight, decreasing to 6 to 10 feet on Sunday. There will be strong rip currents and sneaker waves with this high surf. Much larger and potentially damaging surf is expected to begin late Sunday evening through Tuesday morning.
A very large and long period west-northwest swell will move into the SW California waters Sunday night through Tuesday. This event will likely bring the largest surf of the season so far. Damaging warning level surf is expected to begin Sunday night on the Central Coast, continuing through Tuesday morning. Large advisory level surf is expected to begin south of Point Conception early Monday morning, continuing through Tuesday evening. Surf heights of 18-25 feet will be common on the Central Coast with local sets up to 30 feet possible. Local sets up to 15 feet will be possible along the west facing beaches of Ventura County and up to 12 feet along west facing beaches in LA county. The surf will likely produce breaking waves in the Morro Bay Harbor entrance and possibly across the Ventura Harbor entrance. The surf will bring dangerous rip currents and long shore currents to all areas, along with minor coastal flooding and beach erosion. Waves can suddenly sweep over previously dry beach areas, rocks, or jetties near the water’s edge. Watch children and pets, stay back from the water’s edge and never turn your back on the ocean. Powerful breaking waves are expected in the surf zone creating very dangerous conditions for surfing and swimming.


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