Tropical Cyclone

Tropical Cyclone• Cloud and PrecipitationThe basic structure has already been seen in Figure 1. Because of thesubsidence at the periphery the precursor of the close approach of thetropical cyclone is unusually warm and fine weather. The first cloud signswould be thin cirrus gradually thickening and lowering until the bands ofcumulus cloud become evident. These too increase in vertical extent asthe system draws nearer. The eye wall represents the densest cloud withtops extending to 15km or more is accompanied by very heavyprecipitation and rapid pressure fall. The eye is often cloud free apart fromsome patchy low stratus and perhaps some upper cloud.19