California's northern coast faces 20- to 30-foot waves, prompting warnings after deadly incidents and structural collapses.

Large waves of 25 to 35 feet were expected along the Northern California coast on Tuesday and a high surf warning is in effect until 6 p.m.

Santa Cruz, Calif. – Persistent high surf and flooding threats along California’s coast had residents on high alert a day after a major storm was blamed for one man’s death and the partial collapse of a pier, which propelled three people into the Pacific Ocean.