Severe Weather Alerts for November 12, 2026: Gale Warnings and High Surf Warnings Issued Along Northern California Coast
Severe Weather Alerts: The National Weather Service has issued gale warnings for coastal waters from Cape Mendocino to Point Arena and nearby offshore waters, and high surf warnings for Southwestern Humboldt, Coastal Mendocino, Coastal Del Norte and Northern Coastal Humboldt counties. Mariners and beachgoers are urged to take extra caution, with alerts set to expire on November 12, 2026.
Severe Weather Alerts, Digi Mart USA News (Northern California coast): Digi Mart USA News is reporting on active National Weather Service alerts for November 12, 2026, covering selected coastal areas of Northern California. This is not an exhaustive national forecast.
The National Weather Service in Eureka, California, has issued gale warnings for coastal waters from Cape Mendocino to Point Arena out 10 nautical miles, and for waters from Point St. George to Cape Mendocino and from Cape Mendocino to Point Arena from 10 to 60 nautical miles offshore.
Forecasters say south winds could reach 20 to 35 knots with gusts up to 45 knots, and seas could build to 9 to 16 feet. These alerts expire at 11:15 AM PST on November 12, 2026.
Mariners are advised to alter plans to avoid hazardous conditions, remain in port, seek safe harbor, alter course, or secure vessels. Strong winds may cause hazardous seas that could capsize or damage vessels and reduce visibility.
A very large northwest swell of 28 feet at 18 seconds is expected to reach the coastal waters on Friday afternoon, with marine hazards continuing through the weekend into early next week.
Separate high surf warnings have been issued for Southwestern Humboldt and Coastal Mendocino counties, as well as for Coastal Del Norte and Northern Coastal Humboldt counties. Forecasters expect dangerously large breaking waves of 30 to 35 feet.
The warnings for these areas expire at 1:00 PM PST on November 12, 2026.
Breaking waves can sweep people off jetties and docks and into dangerous seas, and life-threatening surf conditions and significant beach erosion are expected. The National Weather Service says waves may topple over large rocks and jetties and can be unpredictable.
People near the surf zone should use extra caution. Mariners crossing the bar are urged to exercise extreme caution or remain in port, and should contact the U.S.
Coast Guard for information on harbor and bar closures.
After brief improvement late Saturday through Sunday, a second large swell is forecast from late Sunday through Monday.
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