‘eye’ of storm The central part of a tropical cyclone, where winds are light, skies are generally clear, and there is a slight, horizontal pressure gradient. The diameter of the ‘eye’ averages 20 km but in a large cyclone can be 40 km or more. The ‘eye’ is an area of some air subsidence which produces adiabatic warming.

‘eye’ of storm Central part of a tropical cyclone with light winds, generally clear skies, and a slight, horizontal pressure gradient. The diameter of the ‘eye’ averages 20 km but in a large cyclone can be 40 km or more. The ‘eye’ is an area of some air subsidence which produces adiabatic warming.