NWS.

The National Weather Service has issued a high-surf advisory for beaches north of Cape Mendocino today.

Meteorologists expect 20 to 22-foot waves to his the North Coast, with northwest facing beaches seeing the largest swells.

Beachgoers have been advised to keep their distance from the surf and to stay off any jetties or rocks.

File photo of a surfer riding a large wave near the Humboldt Bay Harbor Entrance in 2015. | Neva Swensen