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

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 ...

Isolated strong to severe storms again popped up Wednesday afternoon across the Bi-State area. The strongest storm was a ...

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

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

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

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

The National Weather Service has issued a tornado watch lasting from 5 p.m. to midnight April 28 for most of northeast Kansas ...

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 ...