1) Rising air currents must be sustained bya constant supply of heat and moisture
2) As winds sweep over the ocean, they increase evaporation rates and the latent heat needed to transform liquid to vapour is transferred to the rising air - the moist air will condense to form clouds and heavy rainfall, releasing latent heat, driving the storm
3) Once the system reaches maturity, a central eye develops - A 10-50km area in diameter with calm conditions, clear skies, high temperatures and descending air which increases instability by warming. This intensifies the storm - winds of 300km/h have been recorded by the eye.
4) Winds cause storm surges - broad waves of water pushed ahead of the storm, exacerabted by the rise in sea level caused by the intense low pressure of the storm.
5) Intense rain leads to run-off on land to swollen rivers which often have their outlet impeded by the inundation of seawater by storm surges into eustaries and low-lying land.
6) On land, they rapidly decline in terms of energy as the storm loses its source of heat and moisture over land - increased friction also slows the storm
7) If it moves away from the tropics ocer the sea, the increasingly cooler water restricts the amount of energy avaliable, ultimately reducing the pressure differences
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