A winter storm system across the country is expected to bring severe weather to the south and northeast.
About 16 million people are at risk for a severe weather outbreak Tuesday in the lower Mississippi and Tennessee River Valleys, which includes parts of Alabama, Arkansas, Louisiana, Mississippi and Tennessee.
Strong tornadoes and long-range tornadoes will be possible, along with baseball-sized hail or larger and potentially destructive winds of 75 mph.
A tornado lookout was issued as of Tuesday afternoon by the National Weather Service for an area including northeastern Louisiana, southern Arkansas and central Mississippi.
The agency described the threat of tornadoes as “a particularly dangerous situation” and warned those in the area to be prepared.