Supercells are the mightiest of the thunderstorms. They can roll for hours while maintaining tornadoes and damaging hail.

The Sunday tornado near Ashby has set a record as the widest tornado ever surveyed in the North Platte National Weather ...

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

More than 36 hours after a supercell storm tore through northern West Virginia, thousands of people are still without power.

The weather service said there is a potential for hail to be baseball-sized or even larger for several hours after sunset.

Fayette County Sheriff Ronnie Stevens confirms several buildings suffered significant damage with numerous trees toppled as well. Stevens reported there were no injuries from the storm. The National ...

The National Weather Service says supercell thunderstorms are possible April 28 in central Wisconsin with golf-ball size hail ...

Devastating tornadoes cause hundreds of millions of dollars in damage and dozens of deaths across the U.S. each year. They ...

(Representational Image) Southern Ontario braces for summer-like temperatures and severe thunderstorms as a Colorado low moves in, with risks of hail, strong winds, and isolated tornadoes.

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 ...