An "outbreak" of tornadoes and severe thunderstorms is expected through Saturday night in Alabama, Mississippi, Louisiana, and other southern states.

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,

Sunday marks the third and final day of a deadly multiday severe weather outbreak that spawned violent tornadoes, a dust storm and even blizzard conditions that left more than 30 people dead across the U.

Severe weather hit Alabama on Saturday, and more storms will be possible through the overnight hours. Several areas in central Alabama, including Calera, Gordo, Maplesville, Pletcher and Sipsey, have reported damage as of late Saturday.

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.

About 47 million people faced an enhanced to moderate severe storm threat from Madison, Wisconsin, to Birmingham, Alabama.

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.

Dangerous storm are charging into the Northeast on Sunday during the third and final day of a deadly severe weather outbreak. Hurricane-force winds in Ohio and Pennsylvania are knocking out power to thousands as storms continue to move east.

Dangerous storms charged into the Northeast on Sunday during the third and final day of a deadly severe weather outbreak. Hurricane-force winds in Ohio and Pennsylvania knocked out power to thousands as the storms moved east.