A potent winter storm is threatening a mix of significant freezing rain and accumulating snow across a swath of the Pacific Northwest – including the Portland area – on Thursday, bringing warnings of power outages and multiple dangerous commutes.

More than 100 vehicles crashed on Interstate 84 through Oregon, injuring multiple people and shutting down the highway for miles on Thursday.

The high risk of mudslides prompted evacuation orders Thursday for some Los Angeles neighborhoods ravaged by recent wildfires, while snow and ice to the north caused a more than 100-car pileup on a major highway connecting Oregon and Idaho,