Such conditions resulted in a pileup on Interstate 70 last week in western Kansas involving dozens of cars and trucks that left eight people dead. Blinding dust also prompted New Mexico's transportation department to close Interstate 25 from the Colorado border southwest to Las Vegas, New Mexico.

Extreme weather warnings remain in place for Florida up through Pennsylvania Sunday before massive storm moves eastward to Atlantic Ocean

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