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

JAMM AQUINO / JAQUINO @STARADVERTISER.COM Surfers bob over a breaking wave at Banzai Pipeline Thursday on Oahu’s North Shore. A high surf warning is in effect for most north or west shores in Hawaii.

A High Surf Warning has been issued for most north and west shores for another extra-large swell as the winter surf season ...

A High Surf Warning is in effect until 6 AM HST Saturday for the north and west-facing shores of Niihau, Kauai, Oahu, Molokai ...

National Weather Service (NWS) meteorologists urged people to stay off some beaches in Hawaii amid waves hitting heights of ...

The High Surf Warning for most north and west shores extended until Friday evening. This swell is forecast to slowly taper ...

High Surf Warning posted through Friday morning for most north and west shores. More swells are due from the NW early next ...

The high surf warning across the South Coast has ended, but officials are still warning residents of stronger waves than ...

Larger than usual waves are expected to slam Los Angeles County beaches Friday and through the weekend, prompting warnings ...

SAN FRANCISCO - Dangerous waves are threatening the Bay Area coastline. The National Weather Service forecasts waves reaching ...

Larger than usual waves are expected to slam Los Angeles County beaches Thursday and through the weekend, prompting warnings ...