The Arabian Sea and the Bay of Bengal lie on either side of the Indian coast, both in the proximity of the Indian Ocean. These two basins are preferred zones for the formation of cyclonic storms.
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These cyclonic storms form both in the Pre-Monsoon season, which is during April and May, as well as the Post Southwest Monsoon season, i.e. between October and December. The Southwest Monsoon is not the favored period for the formation of cyclonic storms.
However, there are no official bounds as such as there have been a few occasions when storms have formed in the month of June as well. Sometimes, these cyclonic storms even drive the Monsoon currents to the country.
As far as the frequency of the storms is concerned, it is the Bay of Bengal where more cyclones occur as compared to the Arabian Sea. However, the severity of the storms is equal. The Arabian Sea has a track record of storms fizzling out while they are in the extreme northern parts but the ones which recurve pose threat to the coastline of Gujarat and Maharashtra.
For Bay of Bengal, many storms that do form in the month of April move northwards then they recurve, moving towards Myanmar and Bangladesh, escaping the Indian Coast. During the month of May, the vulnerability of the Indian Coast in terms of Cyclonic Storms increases.
The Arabian Sea storms during this time have a 50 percent chances of affecting the Indian Coastline or 50 percent causing an impact over the Coast of Arabia. During the month of April, storms have the tendency to affect the Gujarat region.
Now, as we are already in the second week of April, the cyclone watch season has begun for both, the Bay of Bengal and Arabian Sea. The next cyclonic storm, whichever occurs, is expected to be named as Sagar.
Image Credit: madhyamama
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