The mammoth storm sparked torrential rain, flash floods and tornadoes that pummeled the region.
Elsa was already blamed for one death in Florida. And the system previously sparked a damaging tornado in Georgia.
At least 10 others were inured when a possible tornado struck a campground at a Georgia Navy base.
A tornado in Atlanta forced thousands to seek shelter, and one man was killed when a falling tree brought power lines onto his vehicle.
At one point, an entire tree blows past the vehicle.
The swath of violent weather also toppled trees, demolished homes and knocked out power to thousands.
The biggest overnight threat of tornadoes remained over Alabama, according to the National Weather Service.
A record-breaking winter storm has killed more than a dozen people across the country. In Texas, millions are without power as electrical grids fail due to snow and cold. In North Carolina, a deadly tornado ripped a county to pieces.
The twister destroyed homes and downed powerlines that left thousands without electricity.