During the most part of February, we have not seen any significant weather activities over South Peninsular India barring a few locations of South Tamil Nadu, Kerala and isolated pockets of Telangana.
However, it was the Andaman and Nicobar Islands that witnessed a few good spells of rain and thundershower between February 15 and 19.
Moderate humid winds from the northeast direction, Bay of Bengal were instrumental for giving scattered rains to south Tamil Nādu and Kerala.
Now, a Cyclonic Circulation has developed over South Andaman Sea. Under its influence, a low-pressure area is expected to form over the same region by the evening of February 27. Rain activity will intensify over Andaman and Nicobar Islands between February 27 and March 1st.
The Southern Islands of Andaman and Nicobar may receive few heavy spells. The low-pressure area is expected to move in a westerly direction towards south Tamil Nadu. Moderate showers may commence over southern parts of Tamil Nadu by March 2nd.
The intensity of rains may increase significantly by March 3rd and cover more parts of Tamil Nadu including Chennai, parts of Kerala, South Interior Karnataka, Rayalaseema and South Andhra Pradesh. Rain will continue over these areas until March 5th.