Wind gusts were forecast to top 50 mph in some areas. In Pico Rivera, a tornado with wind speeds reaching 85 mph traveled about a mile through a residential area of the city.

The strongest wave of a powerful winter storm reached Southern California overnight, bringing flash flood warnings, dropping snow levels and a possible tornado.

The storm, which forecasters said could produce tornadoes, is expected to strengthen Friday and move towards the central US.

A sweeping storm system moving across the U.S. threatens to bring tornadoes, blizzards and possibly wildfires to different regions of the country.

A multiday outbreak of severe weather — including the potential for strong tornadoes — will begin Friday as a strong storm system barrels across the Lower 48. Parts of the Deep South, Mississippi and Tennessee Valleys and even the East Coast will be impacted by severe thunderstorms,

Weather forecasters warn about a major multiple-day outbreak of severe weather that includes multiple strong tornadoes from the Mississippi Valley to the Gulf Coast, Great Lakes and Atlantic coast through the weekend.