The word “supercell” may sound like hype, but they are real thunderstorms with rotating updrafts that can have serious ...

A supercell is a unique type of thunderstorm characterized by a rotating ... this downdraft can contribute to tornado formation. Forward flank downdraft: This carries precipitation forward ...

A classic springtime weather pattern will raise the threat of numerous severe storms developing across more than a dozen ...

There are thousands of thunderstorms in the United States each year, but only a few become strong enough to spin up a tornado ...

A supercell thunderstorm, which brought almost hurricane-force straight-line winds, was responsible for a 300-mile swath of damage across northern Maryland and southern Pennsylvania on Saturday ...

Additionally, a squall line of storms is expected to form in Kansas and flow south into northern Oklahoma that night.

A stock image of a supercell thunderstorm in Michigan. A stock image of a supercell thunderstorm in Michigan. Meindert van der Haven/Getty "Prepare immediately for large hail and damaging winds ...

A pair of supercell thunderstorms spawned five tornadoes across the St. Louis metro area and adjacent areas of southern Illinois on the evening of April 22, 2011. But the strongest tornado tore a ...

The wild weather could reach a possible crescendo into Sunday as supercell thunderstorms trek across the mid-South. Storms on Easter Sunday will take aim at the Ozarks and mid-Mississippi Valley ...