The National Hurricane Center gives this storm a 90% chance of becoming a tropical depression or Tropical Storm Wilfred.
The storm is projected to move over SC by Thursday night.
The death happened in Orange Beach, Alabama, according to mayor Tony Kennon, who also told The Associated Press that one person was still missing.
Meanwhile, Florida and Alabama National Guard troops were working Thursday to help civilian first responders in search-and-rescue and other missions after the storm cleared. The storm flipped boats and cars and even caused significant damage to a bridge outside of Pensacola, Florida.
Authorities warned that rain from the storm could swell eight waterways in Florida and Alabama to record levels. The National Weather Service says the small city of Brewton, Alabama, can expect moderate to major flooding.
Winds tore through a hurricane shutter of his home and smashed one window and collapsed a rooftop sky light.
"We had strong winds for a long period of time", said 38-year-old Grant Saltz as he took a break from clearing debris outside his Mobile restaurant. By Wednesday morning, the Naval Air Station in Pensacola saw two feet of rain and NOAA recorded almost six feet of storm surge, enough to submerge much of downtown.
"Hurricane Sally has been a slow-moving storm, which only adds to some natural delays in restoring power, water and other essential services", Ivey said. Hundreds of people were trapped by floodwaters and had to be rescued Thursday by emergency workers using high-water vehicles and personal watercraft.
In South Carolina, as much as 25 centimetres of rain was possible; in North Carolina, up to 8 inches.
From Dauphin Island, Ala., to Pensacola, Fla., and nearby areas, residents, utility crews and emergency teams have started the cleanup process.
"I don't feel safe to leave", Lamar-Acuff said from the porch of a neighbor's house. "Instead of a few hours we got it for 12 hours".
Teddy is now the eighth hurricane in what was forecast to be a particularly active season.
The National Hurricane Center is now monitoring a system in the southern Gulf of Mexico that has a 90% chance of becoming Tropical Storm Wilfred. TD 22 is expected to become a tropical storm as early as Friday morning and then possibly a Category 1 hurricane over the weekend.
Almost 600,000 homes and businesses were still without power on Thursday in Alabama, Florida, Louisiana and Georgia, according to Poweroutage.us. It will likely cause widespread flash flooding, the NHC said on Thursday.
These seem like wildly differing scenarios, but one we will continue to monitor in the coming days.
In an updated forecast issued Thursday at 11a.m. ADT by the National Hurricane Center, Teddy was declared a major Category 3hurricane with maximum sustained wind speeds around the eye near 195 km/h.