What to know about a storm bringing high winds, heavy rain, snow to California and Pacific Northwest

One of the strongest storms on the West Coast in decades knocked out power for thousands of people and unleashed strong winds that toppled trees and left two dead in Washington before making its way through Oregon to Northern California. The storm was dumping heavy snow and record amounts of rain in the region on Thursday. The National Weather Service extended a flood watch into Saturday for areas north of San Francisco. The storm system roared ashore Tuesday and it’s expected to bring moderate to heavy rain through Saturday, increasing the risk of flash flooding and rockslides in some areas.