The first of back-to-back atmospheric rivers is drenching California. Heavy rain and gusty winds began hitting the state’s north on Wednesday before moving south along the coast and snarling the Thursday morning commute in Los Angeles.

  • Cars pass through a flooded 710 Freeway in Long Beach on Feb. 1, 2024.
  • A portion of PCH was closed in Huntington Beach due to flooding in on Feb. 1, 2024.
  • Traffic backed up along Pacific Coast Highway due to flooding in Santa Monica, Calif., Thursday, Feb. 1, 2024. The first of two back-to-back atmospheric rivers is drenching California. Heavy rain and gusty winds began hitting the north on Wednesday and moved south along the coast, snarling the Thursday morning commute in Los Angeles. (AP Photo/Eric Thayer)
  • A portion of the 405 Freeway flooded in Long Beach on Jan. 22, 2024.

The stor flooded roads, toppled trees and caused traffic accidents, but also dumped welcome snow in the mountains. Forecasters say the storm will be followed by an even more powerful one arriving late Saturday night. The California Governor’s Office of Emergency Services has activated its operations center and positioned personnel and equipment in areas most at risk from the weather.