Tropical Cyclone
A fully-formed tropical cyclone has two main parts:
Eye: The calm center where cold air descends and warm air rises in a spiral.
Eyewall: A ring of thunderstorms around the eye that bring heavy rain, lightning, and strong winds.
While moving over water, the cyclone draws moisture to create more clouds and rain, strengthening its power.
Landfall
Landfall occurs when the cyclone's eye moves over land, causing a drastic decline in its moisture supply, leading to weakening.
Strong winds and heavy rain are strongest around the eye, and landfall can be deadly for coastal areas.
Storm surges can flood coastal regions and affect inland drainage.
If the air over land is drier, among other factors, a cyclone weakens quickly after landfall.
Depending on environmental conditions, it may dissipate completely, or it could pass over land and re-emerge on the other side
In 2021, Cyclone Gulab made landfall over coastal Andhra Pradesh, weakened as it moved across peninsular India, and re-emerged four days later as Cyclone Shaheen in the Arabian Sea.
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