The Angelina County Sheriff's Office in Texas said an 8-year-old and a 3-year-old died when strong winds toppled a tree onto the back of their family's auto in Lufkin, located about 115 miles northeast of Houston. Multiple people were injured and several homes were damaged in Hamilton, Mississippi, said Monroe County Coroner Alan Gurley. Trees were down and at least some minor damage was reported in residential areas east of the campus. More than 140,000 customers lost power in Texas, Mississippi, Louisiana, and Arkansas as of late Saturday. Trees were pulled up by the roots, roofs torn off buildings and the cinder block foundation was all that was left of a mobile home in the town, which is southeast of Waco. Violent weather is unlikely to be as widespread as Saturday, but some of Sunday's storms may be intense.
At least 4 people were killed - including 2 children - after powerful storms roared through the South on Saturday, spawning multiple tornadoes in several states as the threat for severe weather expands north on Sunday. Damage from a possible tornado was also reported on Saturday afternoon in Alto, Texas.
In East Texas, two children were killed when a pine tree fell onto the back of the auto in which they were riding in a severe thunderstorm Saturday. Capt. Alton Lenderman said the parents, who were in the front seats, were not injured.
"The main threat will be damaging winds with the line, but an isolated tornado and isolated instances of flooding can not be ruled out as well", National Weather Service forecasters said. Damaging winds and other severe weather threats are more likely during a line of storms forecast to pass through during the overnight hours, they said.
"Damaging winds and a couple of tornadoes will be the primary hazards, but isolated hail may accompany the strongest [storms]", the Storm Prediction Center wrote.
The large storm system also knocked out power to thousands and caused flash floods. Franklin is about 125 miles (200 kilometres) south of Dallas. Some people had to be extricated from their homes.
National Weather Service meteorologist John Moore said a possible twister touched down in the Vicksburg, Mississippi, area.
"We're talking about tens of millions of people with some stormy weather before this Sunday is over", he said Sunday on "FOX & friends".