Three children were among the dead.
The National Weather Service has issued a Tornado Watch for much of the WSAZ viewing area. No injuries were reported, but officials reported damage to several businesses and vehicles. 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.
The entire town of Franklin and neighboring Bremond lost electricity, with 3,088 customers without power early Sunday.
Texas is seeing the beginning of the unsafe and severe storms forecast to slam parts of the Southeast and Ohio River Valley this weekend.
Tornado warnings and watches were posted in the state Saturday night as the severe weather exited MS into Alabama. Most of our area is under a Slight Risk (2 out 5) for severe storms.
Warm air enhanced the atmosphere's instability Saturday, allowing the storm system to rev up more energy and grow, CNN meteorologist Chad Myers said.
He said the threat for severe weather is greatest at such times but that the risk remained even after warm temperatures dropped. "Some storms may also produce large hail or torrential downpours resulting in localized flash flooding", the National Weather Service tweeted.
Heavy rains and storms raked MS into the night Saturday as the storms moved east.
The storm system's death toll rose to at least seven on Sunday, when authorities reported the death of a Texas woman whose mobile home was destroyed Saturday night. Damage also has been reported near Satartia, Mississippi, from the storms.
Tornado damage seen over the weekend.
The forecast of severe weather forced officials at the Masters in Augusta, Ga., to begin the tournament early Sunday, starting threesomes off the first and 10th tees on the day's final round in hopes of finishing in midafternoon before the winds and rains begin.
There are reportedly "two lines of storms" expected to hit Sunday evening, into Monday morning, according to NBC Washington. The center said it expects the threat of severe weather to increase throughout the afternoon.
Ponding on roadways could also impact the morning commute, and high winds Monday of up to 50 miles per hour could also make it harder for crews to clean up any damage from the overnight storms, the service said.
Residents in parts of Pennsylvania, Ohio, West Virginia Georgia and Florida were encouraged to monitor weather bulletins throughout Sunday and to secure loose outdoor items.