The year’s first deadly US tornado struck after dark Thursday, killing two people in a small East Tennessee community as the first of five back-to-back, jet stream-driven winter storms pummeled the eastern United States.

A tornado swept through a swath of Tennessee, killing a mother and daughter and injuring at least three other people as it caused severe property damage, officials said.

Two people are dead in Morgan County, Tenn., after a tornado swept through the area on Thursday, Feb. 6. Here's what we know so far.