A mesocyclone is a
Mesocyclones are localized, approximately 2 km (1.2 mi) to 10 km (6.2 mi) in diameter within strong thunderstorms. Thunderstorms containing persistent mesocyclones are supercell thunderstorms. Mesocyclones occur on the "
Mesocyclones form when strong changes of wind speed and/or direction with height ("
As the updraft rotates and ingests cooler moister air from the forward flank downdraft (FFD), it may form a