Enumerate the conditions for the formation of Tropical cyclones. How the recently formed Cyclone Fani is unique in serveral ways? Explain (200 Words)
Refer - The Indian Express
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IAS Parliament 5 years
KEY POINTS
Tropical cyclones originate and intensify over warm tropical oceans. The conditions favourable for the formation and intensification of tropical storms are:
· Large sea surface with temperature higher than 27° C;
· Presence of the Coriolis force;
· Small variations in the vertical wind speed;
· A pre-existing weaklow-pressure area or low-level-cyclonic circulation;
· Upper divergence above the sea level system.
Uniqueness of Cyclone Fani
· Fani is a little outlier, mainly on account of its strength, and the route it has taken.
· Cyclones emerging in April-May usually are much weaker than those during October-December.
· Fani is, thus, unusual, and that is mainly because of the place it originated, very close to the Equator, and the long route it has taken to reach the landmass.
· A thumb rule for cyclones (or hurricanes and typhoons as they are called in the US and Japan) is that the more time they spend over the seas, the stronger they become. So Fani is geting stronger and is the cause of extremely severe cyclone.
SARI 5 years
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IAS Parliament 5 years
Good answer. Keep Writing.
