Forecasters on Monday warned millions of Americans to be prepared for another round of severe storms, including strong tornadoes, a day after storms killed 16 people in three states.
The storms Sunday in Oklahoma, Iowa and in Arkansas - where 14 of the 16 people died - were the opening act of a three-day weather spell expected to provide at least a slight risk of severe weather through Wednesday.
In the hardest-hit area, Faulkner County, Arkansas, Sunday's suspected tornado shattered homes, tossed tractor-trailers and killed 10 people, two of them children, authorities said. The most affected areas were in the towns of Vilonia and Mayflower.
"There were cars flipped everywhere, there were people screaming," James Bryant, a Mississippi State University meteorology student, told CNN's "New Day" on Monday. "It was a tough scene."
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