Scattered twisters and storm damage led to the deaths of at least 13 people in Missouri, including a 30-year-old man who along with his dog was found dead from carbon monoxide poisoning after he was using a generator indoors during the storm, authorities said. In Arkansas, officials confirmed three deaths.

Residents and work crews in the South and Midwest are beginning to clean up and survey the destruction from a series of storms that kicked up wildfires, tornadoes and dust storms

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

Meanwhile, the severe weather threat will linger through Sunday from Florida northward into the upper Ohio River Valley, forecasters warned.

Residents pounded by unusually vicious weather across parts of the U.S. surveyed damage Sunday from violent tornadoes, high winds and blinding dust storms that decimated homes and other structures and left at least 35 people dead.