Francine made landfall in Louisiana as a Category 2 hurricane.
Hurricane Francine made landfall early Wednesday evening in Louisiana, southwest of New Orleans, as a Category 2 storm. Francine has since weakened to a tropical depression as it brings heavy rain to the South.
Francine weakened to a tropical depression as it moved over south-central Mississippi Thursday morning.
Francine is now spreading heavy rain across Mississippi, Alabama and the Florida Panhandle.
A tornado watch is in effect for Florida and Alabama.
The National Weather Service forecast heavy rains and thunderstorms across the southeast through Thursday as Tropical Storm Francine moves north from Louisiana into southern Mississippi.
The National Hurricane Center said Francine was around 20 miles northwest of New Orleans early Thursday, with maximum sustained winds of 50 mph. The tropical storm was moving northeast toward Mississippi at 14 mph.
Francine is expected to bring between 4 and 8 inches of storm rainfall to areas across southeastern Louisiana, Mississippi, far southern Alabama and the Florida Panhandle through Thursday, the NHC said.
"This rainfall could lead to considerable flash, urban and river flooding," it added.
The NWS warned of "heavy rain and chances for severe thunderstorms" across the affected areas, as well as tornadoes "potentially impacting parts of Alabama and the Florida Panhandle along a slow-moving warm front."
"The greatest threat for considerable flash flooding exists across parts of northern and central Alabama," it added, noting the possibility of up to 10 inches of rain.
The NHC also warned of dangerous storm surges. Water could rise by 4 to 6 feet between the mouth of the Pearl River in Louisiana to Ocean Springs in Mississippi, as well as at Lake Pontchartrain.
Three- to 5-foot surges may occur from Ocean Springs, Mississippi to the state border with Alabama, between Morgan City and the mouth of the Mississippi River in Louisiana and at Lake Maurepas, the NHC said.
-ABC News' David Brennan and Max Golembo
After making landfall as a hurricane, Francine weakened to a tropical storm late Wednesday night.
All Hurricane Watches and Warnings have been canceled, but Tropical Storm Warnings continue for parts of Louisiana, Mississippi and Alabama.
The Flash Flood Warning remains in effect in metro New Orleans while heavy rains remain.
By Thursday morning, Francine will be over central Mississippi with heavy rain, gusty winds, and tornado risk extending into Alabama to the Florida panhandle.
The storm is moving northeast at 16 mph while sustaining maximum winds of 65 mph.
Thunderstorms across Louisiana are producing heavy rain across the state, according to the National Weather Service.
Flash Flood Warnings are in effect for "Northwestern Jefferson Parish, Southwestern Orleans, Northern St. Charles Parish and Southwestern St. John The Baptist Parish" until 11:45 PM local time, the NWS said Wednesday evening.
Between 5 to 7 inches of rain has already fallen in the areas, with an additional 2 to 3 inches expected, according to NWS.
Other areas in Louisiana that may experience flash flooding include Hahnville, Metairie, Avondale, Laplace, Marrero, Reserve, Harvey, Timberlane, Jefferson, Gretna, Harahan, Westwego, St. Rose, Destrehan, Ama, New Sarpy, Norco, Luling and Waggaman.
