Northeast Monsoon which usually makes an onset in the third week of October has been playing enough games with the Southern peninsular India. In fact, Northeast Monsoon was all set to make the earliest onset in the recent history and thereafter due to several reasons stayed on the backseat and is now heading towards an early November arrival.
Northeast Monsoon does arrive over the Southern Peninsula in view of Monsoon circulations
Cyclone Titli which could have paved way for Northeast Monsoon, moved far away resulting in delayed onset. Thereafter, there were a few systems, but they were not strong enough or in close proximity for Monsoon to mark its arrival.
At present, a cyclonic circulation is over West Central Bay of Bengal moving along the East Coast, far away from Tamil Nadu. The system is expected to induce a low pressure area which will give heavy rains over West Bengal and coastal parts of Odisha.
After this weather system vacates, it will pave way for the commencement of Northeast Monsoon around November 1. It takes about two days to declare the arrival of Northeast Monsoon, there is at least 24 hours of rain required with more rainfall succeeding in the subsequent 24 hours.
Rains will increase over parts of Tamil Nadu around November 1 and 2. Thereafter, rainfall activity is expected to increase even further around November 5 on account of a formation of a system in the Bay of Bengal. During that time, even Kerala will see good rains. Rainfall in Kerala will remain light this week.
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Please Note: Any information picked from here must be attributed to skymetweather.com