The dangerous outbreak will sweep through the Midwest, South and East through the weekend. Saturday could be one of the worst severe weather days of the year.

The threat of tornadoes is moving east into the Mississippi Valley and Deep South a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up dust storms that caused deadly crashes and fanned more than 100 wildfires in several central states.

A multi-day severe weather outbreak is set to bring tornadoes, flash flooding and damaging winds from the Midwest to the South to the East Coast.

A major storm continued to wallop much of Southern California on Thursday morning, bringing evacuation warnings, fears of mudslides and heavy mountain snow.

A tornado touched down in a Los Angeles County neighborhood early Thursday morning, a rare event in Southern California. With 85 mph winds, the Oxnard tornado knocked down trees and damaged homes and cars in Pico Rivera at around 3:15 a.