Eyewall mesovortices are small scale rotational features found in the eyewall of very intense tropical cyclones. In these vortices, wind speed can be up to 10% higher than in the typical eyewall. Eyewall mesovortices are most common during periods of intensification in tropical cyclones. This article is about weather phenomena. ...

Eyewall mesovortices often exhibit unusual behavior in tropical cyclones. They usually rotate around the low pressure center, but sometimes they remain stationary. Eyewall mesovortices have even been documented to cross the eye of a storm.

Eyewall mesovortices are a significant factor in the formation of tornadoes after tropical cyclone landfall. Mesovortices can spawn rotation in thunderstorms, which leads to tornadic activity. At landfall, friction is generated between the circulation of the tropical cyclone and land. This can allow the mesovortices to descend to the surface, causing large outbreaks of tornadoes. For other uses of Tornado, see Tornado (disambiguation). ...