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Giant Waves Are Heading for the California Coast
A powerful series of storms in the Gulf of Alaska is generating massive swells expected to arrive along Northern and Central California beginning Friday, November 13, bringing potentially life-threatening conditions to popular beaches.
The National Weather Service has issued high surf warnings across portions of the California coastline, warning that unusually powerful waves could sweep people off beaches, rocks and jetties.
How Big Will the Waves Get?
According to the National Weather Service, breaking waves of 25 to 30 feet are expected along portions of the San Francisco and Monterey Bay coastlines.
Farther north, Humboldt and Mendocino counties could experience waves reaching 25 to 35 feet.
The San Francisco Chronicle reports that individual offshore waves could exceed 50 feet, potentially making this one of the biggest swell events to strike portions of California in years.
San Francisco's Ocean Beach could see breakers exceeding 25 feet, while the famous Mavericks surf break near Half Moon Bay could experience even larger waves.
When Will the Dangerous Surf Arrive?
The first dangerous swells are expected Wednesday night, November 11, with conditions intensifying Friday.
High surf warnings for the San Francisco coastline take effect at 6 p.m. Friday and continue through 4 a.m. Sunday.
Along portions of Humboldt and Mendocino counties, warnings begin at 4 p.m. Friday.
Saturday is expected to bring some of the most powerful surf.
However, the danger may not end this weekend.
Meteorologists anticipate another significant swell arriving late Sunday into Monday, with additional waves potentially continuing through Thanksgiving.
Why Are the Waves So Dangerous?
The unusually large waves coincide with elevated coastal water levels, increasing the potential for beach erosion and flooding.
A coastal flood advisory remains in effect for portions of the Bay Area through Friday afternoon, with up to 1.5 feet of inundation possible in some low-lying areas.
Sneaker waves are another major concern. These unexpectedly powerful waves can travel much farther up beaches than surrounding waves, potentially dragging unsuspecting visitors into the ocean.
According to KQED, National Weather Service meteorologist Joe Merchant warned that being near the water could become deadly.
Officials recommend avoiding beaches, rocks, piers and jetties during the dangerous conditions.
Even experienced swimmers and surfers should exercise extreme caution.
For Californians hoping to watch the spectacular surf, the safest option is to observe from a protected location well away from the shoreline.
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