Snow and ice in whiteout conditions contributed to a pileup of more than 100 cars on a major highway connecting Oregon and Idaho, reportedly injuring several people, as a winter storm descended on the Pacific Northwest Thursday.

A swift debris flow swept a Los Angeles Fire Department vehicle off the Pacific Coast Highway and into the ocean as heavy rain fell across Southern California on Thursday,

Snow and ice in whiteout conditions contributed to as many as 30 cars involved in a pileup on a major highway connecting Oregon and Idaho, reportedly injuring several people, as a winter storm descended on the Pacific Northwest Thursday.

Parts of Pacific Coast Highway remained closed due to heavy flooding and mudslides in Southern California, according to state officials.