The National Weather Service warns residents against staying off the streets as the heightened landslide and debris threat continues until Wednesday night.
Traffic at about six miles off Interstate 40 near Old Fort, North Carolina, was blocked late Tuesday night due to a landslide, McDowell County Emergency Management said.
Forces also carried out several water rescue operations through McDowell County, but no injuries or deaths were reported,
"People are asked not to travel unless they flood from flooding," the National Weather Service said.
Alberto was weakened on Monday to a subtropical depression, but nearly 30 million people in parts of Alabama, Tennessee, Georgia and Kentucky were under flood floods for a long time.
Following entry into the Tennessee Valley, the system is expected to enter the Ohio Valley and Great Lakes region Wednesday and Thursday after the National Hurricane Center.
Alberto landed Monday afternoon as a subtropical storm in the Florida Panhandle, reaching maximum sustained winds of 45 mph when it arrived at Laguna Beach, according to the Hurricane Center