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 ...

DEVILS TOWER, Wyo. – Baseball-sized hail clobbered Devils Tower National Monument on Monday as a powerful supercell storm ...

Collection and processing of in situ data pertaining to thermodynamic conditions in tornadic supercell thunderstorms is critical to enhancing severe weather forecasting and mitigating the destructive ...

Spring's warm temperatures fueled storms in late April, causing large supercell storms for much of the Great Plains states which caused more than multiple tornadoes, according to NOAA. The water ...

A colossal storm cloud swept through Sorocaba, São Paulo, on Wednesday, leaving locals stunned by its dramatic and foreboding appearance. Identified as a supercell with a mesocyclone, the cloud ...