Very heavy rainfall is expected in several waves, early Friday morning, again Friday evening/night, and a final round during the day Saturday. Storm totals to 8 inches are possible.
An overturned semi forced authorities to shut down part of Highway 377 in Marshall County this afternoon.
The accident occurred just before one o'clock this afternoon.
Troopers say the driver of the semi fell asleep and drifted off the road.
He then tried to steer the vehicle back on to the highway, over-corrected, and ended up skidding several feet before rolling.
No injuries were reported in the wreck.