Weekend storms pounded the country from the Midwest to the East Coast, forcing hundreds of people to flee flooded communities, spawning tornadoes that tore up houses and killing at least eight people.
Rescuers in boats continued to pluck people from rising waters in Indiana, a day after more than 10 inches of rain deluged much of the state.
The Indiana flooding killed at least one person, a man who drowned in his vehicle, said John Erickson, a spokesman for the state.
Another person was reported missing after falling off a boat on Mill Creek.
In Michigan, two delivery workers for The Grand Rapids Press drowned early Sunday when their car became submerged in a creek that washed out a road about 4 a.m., the newspaper said.
Two other people in the state were killed by falling tree; one man drowned and a woman died when high winds blew a recreational vehicle on top of her; and lightning killed one person at a state park.