Strong storms, including at least one tornado, swept through parts of the Midwest and the Mid-Atlantic region, damaging homes and businesses and causing injuries after storms in the South killed at least eight people.
Heavy rain from the thunderstorms may lead to isolated instances of flooding and a "short-lived tornado" is also possible.
An EF-1 tornado was confirmed near Buffalo Valley in East Buffalo Township.
According to Capt Alton Lenderman of the Angelina County Sheriff's Office, the tree "flattened the auto like a pancake", but the parents, who were riding in the front of the vehicle, were not injured.
One thunderstorm cell near Columbus Air Force Base in MS has a potential "debris ball" signature on radar, which indicates the potential for significant tornado damage that can be detected by radar, he said.
The weather service says a possible tornado also swept through part of Clark County in western OH on Sunday, about 40 miles west of Columbus, and damaged some mobile homes. A mobile home community was damaged, but no injuries are being reported.
There are reportedly "two lines of storms" expected to hit Sunday evening, into Monday morning, according to NBC Washington.
Both Franklin and a neighboring town lost electricity as a result of the storm, leaving 3,088 customers without power on Sunday, reported CNN.
Over the weekend, four people died in Texas, two in Louisiana, one in MS and another in Alabama.
At least one person was killed and about two dozen others were injured after a suspected tornado struck the Caddo Mounds State Historic Site in East Texas during a Native American cultural event in Alto, about 130 miles (209 kilometers) southeast of Dallas.
Vermont officials say flooding from spring rains closed a number of roads Monday.
Emergency responders are out cutting trees.
The National Weather Service of Fort Worth went on to rate the tornado an EF-3, with 140 miles per hour winds.
The tornado downed trees near the Mississippi State University campus.
A possible tornado has left damage in southeastern Alabama on Sunday morning.
Monroe County Fire Coordinator Terry Tucker confirmed to PEOPLE that a man in his mid-to-late 80s died and 10 others were injured.