Hurricane Sally weakened to a tropical depression with winds down to about 35 mph — but continued to dump torrential rains over wide stretches of eastern Alabama and western Georgia after leaving at least one person dead and another missing, according to reports.

Sally blew ashore as a Category 2 hurricane early Wednesday near Gulf Shores, Alabama, with winds of 105 mph.

It was later downgraded to a tropical storm and then weakened further into a tropical depression late in the day as it plodded along at 9 mph on a path that will lead it to South Carolina on Thursday night, according to CNN.

Almost 500,000 homes and businesses remained without power early Thursday across Florida and Alabama.

Despite losing its punch, Sally’s wrath is being felt across several states — as at least eight rivers in Alabama and parts of the Florida Panhandle are expected to reach major flood stages.

“We had 30 inches of rain in Pensacola — 30-plus inches of rain — which is four months of rain in four hours,” Ginny Cranor, chief of the Pensacola Fire Department, told CNN.

David Triana, a resident of Navarre near Pensacola, said he and his neighbors did not board up their homes because they didn’t expect Sally’s trajectory to shift so much to the east or for it to be so strong.

“Nobody was prepared for a Cat 2,” said Triana, 57, whose home escaped without any damage, according to Agence France-Presse. “The forecasts for the cone and the strength of the storm did not indicate that it would hit us so hard.”

Forecasters said rainfall totals of up to 35 inches are possible from Mobile Bay to Tallahassee, Florida.

“My house is full of water, I’ve got two to six inches full of water in my house, everywhere,” Freeport resident Terry Morgan told CNN affiliate WJHG.

The storm is believed to have killed one person in Alabama.

“We had a body wash up. We believe it was hurricane-related, but we have no definitive proof of that right now,” Orange Beach police Lt. Trent Johnson said.

Sally was the 18th named storm in the Atlantic this year and the eighth of tropical storm or hurricane strength to hit the US.

There are currently three other named storms in the Atlantic, making it one of the most active Atlantic hurricane seasons on record.

With Post wires