Tropical Storm Tammy (search) turned subdivisions into lagoons and soaked this port city with more than 4 inches of rain before weakening to a tropical depression Thursday.

Ankle-deep water seeped into at least two dozen homes, and Tammy's winds felled trees and power lines in southeast Georgia.

Joseph and Michelle Floyd fled with their three young children in the middle of the night after finding 11/2 inches of water in their bedroom. They returned hours later and had to wade through knee-deep water just to get to the front door.

"It rained all day yesterday and there were just puddles — it really didn't seem that bad," Michelle Floyd said. "We just assumed we were all right."

Two to three dozen homes in and around Brunswick had flooding and some roads had up to 3 feet of standing water, said Richard Strickland, emergency management director for Glynn County.

"The ground was already soaked, on top of what we got from Tropical Storm Tammy," said Strickland, who said the county had received 10 to 15 inches of rain over the past four days.

Tammy came ashore as a weak tropical storm late Wednesday near the Florida state line. By Thursday afternoon, the depression was spreading moderate rain across Georgia, Alabama, Tennessee and the Carolinas. Isolated tornadoes were possible.

More than 16,500 utility customers in southeast Georgia lost power at the height of the storm. In South Carolina, Hilton Head (search) saw nearly 6 inches of rain and an oceanfront home on Edisto Beach collapsed.

Tammy was the 19th named storm of the Atlantic hurricane season, which began June 1 and ends Nov. 30. This season is tied as the second-busiest since record-keeping started in 1851.