The National Weather Service on Saturday warned of thunderstorms moving across the eastern third of the United States, likely resulting in power outages and downed trees from winds with gusts over 60 mph
<p><span style="color: rgb(20, 20, 20); font-family: Calibri, sans-serif; font-size: 16px;">At least 26 people have been killed after a series of tornadoes tore through towns and cities in the United States' South and Midwest.</span><br></p>