The off shore trough along the west coast persists,and continues to produce some pockets of heavy rain along the coast ,measuring 4-6cms,along the west coast,upto Mumbai.Mumbai had a a drizzle today morning with thunder and lightning.This trough will remain for another 24 hrs. before the anticyclone pushes down and drives the South West Monsoon away.The South West Monsoon has widhdrawn upto 20°N as on 9th.October.The North East Monsoon will then set in,as indicated by a few models.It is likely to set in by 14th./15th.
Just like a busy Pacific season had a favourable impact on the South West Monsoon,the development of the El Nino effect is to be watched on the Winter Monsoon in South India.