The 29-year-old administrative assistant's viral video of the terrifying sight shows the giant cloud mass on the horizon and the sky suddenly turning dark over Raposo Tavares Highway. For a moment ...

A supercell thunderstrom in Oklahoma. Image courtesy of NSSL/NOAA. The National Weather Service defines a severe thunderstorm as a thunderstorm that is producing: Hail that is at least quarter ...

The towering cumulonimbus cloud darkens the sky to a piercing black. A cloud of dust trails behind Springsteen’s car, which is lit by the little remaining light. "Soon it began to rain as ...

A so-called supercell storm caused by divergent wind patterns has been captured on video in Texas. What are they and how do they form? The closing arguments in the rapper's assault trial descended ...