With 29 million people under a Severe Thunderstorm Watch and hazardous storms moving east, the Fourth of July weekend could be dangerous.

One day after devastating thunderstorms over the mid-Mississippi and Tennessee valleys damaged trees in more than a dozen states, the threat has returned.

Millions of people will be at risk from catastrophic wind gusts, huge hail, and maybe tornadoes on Sunday as another round of severe weather is predicted to hit states from the mid-South to the East Coast.

Also Read: Three dead as tornado and thunderstorms hit Indiana and Arkansas | Watch video

One day after devastating thunderstorms caused tree damage in more than a dozen states spanning the mid-Mississippi and Tennessee valleys, this new threat has emerged.

Police in St. Louis reported that a tree fell upon a car, killing the female driver, and that at least one person was murdered as a result. The woman, who was the only person in the car, was waiting out the storm when the tree fell, according to a report from FOX 2 in St. Louis.

After the event, the woman was responsive, according to the witnesses, but calling 911 took about 30 minutes. Later on, the woman passed away from her wounds, according to FOX 2.

8 million people from Arkansas to Tennessee are currently under a Severe Thunderstorm Watch until 8 p.m. CDT, according to NOAA’s Storm Prediction Centre (SPC), which made the announcement on Sunday afternoon.

Also Read: Severe thunderstorm warnings issued across metro Atlanta as storm moves across Georgia | Watch video

Major cities in the area are included in the watch, such as Calhoun in Georgia, Memphis, Chattanooga, and Knoxville in Tennessee, Tupelo in Mississippi, Florence, Gadsden, and Birmingham in Alabama, and Knoxville, Chattanooga, and Birmingham in Tennessee.

Additionally, a Severe Thunderstorm Watch was issued until 8 p.m. CDT for parts of Missouri, Illinois, Indiana, and Kentucky.

Jonesboro in Arkansas, Paducah and Louisville in Kentucky, Jackson and Nashville in Tennessee, and Evansville in Indiana are among the cities under that surveillance.

A third Severe Thunderstorm Watch was issued on Sunday afternoon and is in effect through 9 p.m. EDT for a region that includes eastern Illinois, central Indiana, and western Ohio.

In addition to Bloomington, Indianapolis, and Fort Wayne in Indiana, Cincinnati, Dayton, and Columbus in Ohio are also included in that watch.

Up to nine o’clock EDT, a fourth Severe Thunderstorm Watch was issued for parts of Virginia and North Carolina.

South Hill and Emporia in Virginia, as well as Raleigh-Durham, Smithfield, and Rocky Mount in North Carolina, are among the cities under observation.