Powerful storms raced across portions of Texas and Oklahoma on Sunday knocking out power to tens of thousands of utility customers. FOX Weather Meteorologists Britta Merwin and Craig Herrera break ...

Lightning filled the sky over Weatherford, Texas, as severe storms rolled through on Sunday, June 8. Footage from Chad Casey ...

A derecho is a widespread windstorm. We dive into how they form, where they form and when they form most often.