Share on Facebook Share on Twitter Per NBC News: at least 36 people have died across Missouri, Arkansas, Texas, Oklahoma, Kansas, Alabama and Mississippi as powerful storm systems swept through the Midwest and South,

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.

A multiday severe weather outbreak could blast cities across the central and eastern U.S. with thunderstorms capable of producing large hail and potential tornadoes.