Tuesday, May 18, 2010

Monsoon forecast: I think tthe Cyclone is moving as per the expectations in my blog written yesterday. Striking the coast near the A.P./Orissa border, and then sort of grazing it, and moving North-East. What happens to the Monsoon? My personal assumptions are:The energy gets sucked into the system, and suddenly we find a drop in the rain rate around the Andaman Islands.This will stall the further movement of the Bay branch, by 4/5 days. A lot of rain will move up the east coast during the next 4/5 days. Can this be called Monsoon rains? Technically no. And,subsequently, as the Bay waters will cool down a bit, fresh momentum required for the monsoon may take another week.Monsoon will advance into North-eastern region in the first week of June.


The Arabian Sea branch gets the initial pull from the cyclone,at the time the cyclone enters the land.Subsequently, the south-west flow of clouds and moisture can continue into Kerala uninteruppted. Hence, it is very possible, that regular monsoon winds can enter Kerala by the 25th./26th. Further movement Northwards may then take another week to gather momentum. The 200 hpa winds are not yet regrouped. The cyclone may have delayed this important parameter a bit,though their is no direct co-relation between the jet streams and the cyclone. 




Monsoon movement into Karnataka and Northwards could be in the first week of June.

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