A supercell storm along the Mason-Dixon Line brought nearly hurricane-force winds through northern Maryland and southern PA ...

Supercell thunderstorms ... classic supercells have a "mothership" appearance often photographed in the Plains states. Most ...

Tornadoes are primarily produced in two different ways: From supercell thunderstorms and from non-supercell thunderstorms. A supercell tornado is produced from a supercell thunderstorm.

Mississippi's tornado history is a long and deadly one. Fifteen years ago, the state's largest on record tore through the ...

Multiple tornadoes were reported Thursday evening from two supercell thunderstorms that traveled from Nebraska into Iowa. At least six reports came from southwest Iowa, although the National ...

A large supercell tornado was spotted west of Memphis, Tennessee on Wednesday. Sirens went off in the city, warning residents of a twister hitting populated areas. The National Weather Service ...

In a video shared by the National Weather Service in Pittsburgh, officials explained that on Saturday evening, a long-lived supercell storm tracked through Ohio, West Virginia, Pennsylvania ...