Eleven storm-related fatalities were reported in the Missouri counties of Ozark, Butler, Wayne and Jefferson, the state highway patrol said. Three people were confirmed dead in Independence County, Arkansas, the state's emergency management division said. Four were reported dead in Texas, officials said Saturday.

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

Officials confirmed Saturday at least 13 people are dead after multiple storms tore through Missouri and Arkansas.

The most fatalities as of Saturday morning were in Missouri, authorities said, with an estimated 11 people killed.

Numerous significant tornadoes are expected Saturday afternoon and evening, with the highest risk across several states in the Deep South, forecasters say.