Ida's latest forecast
Ida, one of the strongest hurricanes to make landfall in Louisiana, has dropped 18 inches of rain on parts of the state.
New Orleans has been hit with 13.7 inches of rain.
Numerous flash flood warnings remain in effect across parts of Louisiana, Mississippi, Alabama and the Florida Panhandle.
Ida is expected to weaken to a tropical depression Monday before bringing heavy rain and possible flooding to the Tennessee Valley Monday night through Tuesday.
By Wednesday and Thursday the storm will hit the Mid-Atlantic and the Northeast. The forecast calls for 4 to 6 inches of rain and possible flash flooding.
-ABC News' Melissa Griffin