mesocyclone
/ˌmɛzoʊˈsaɪkloʊn/
noun
- A rotating column of air within a thunderstorm, often leading to severe weather like tornadoes.
- Storm chasers drove toward the mesocyclone to study its rotation.
- The meteorologist spotted a mesocyclone on the radar and issued a tornado warning.
- A strong mesocyclone can produce hail, high winds, and dangerous tornadoes.