The National Weather Service issued multiple tornado and severe thunderstorm warnings early Saturday for areas in Alabama, Kentucky, Mississippi, Tennessee, Illinois, Indiana and Texas.

A cross-country storm is strengthening as it moves over the central United States Friday and pounding the region with damaging hurricane-force wind gusts that are creating a blinding dust storm and fanning flames amid a “catastrophic” fire risk.

The threat of tornadoes moved east into the Mississippi Valley and Deep South on Saturday, a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up deadly dust storms and fanned more than 100 wildfires.

Eastern Indiana is under a tornado watch until 10 a.m. Scattered parts of central and southern Indiana are under a severe thunder storm warning. Over 50,000 Hoosiers do not have power as strong winds with up to 60 mph gusts rip across Indiana.

So, what are the differences between Tornado Watch and Tornado Warning?Tornado WatchA Tornado Watch is issued by the NWS when weather conditions in an area could have an increased risk of severe weather capable of producing a tornado.