Rain statistics of South Peninsular paints a contrasting picture. Karnataka, Kerala and Lakshadweep are large rain deficient regions whereas Andhra Pradesh, Telangana, Tamil Nadu and Puducherry are large rain excess regions. Andaman and Nicobar islands are in the normal range category.
Rainfall in the month of January and February remains on the lower side for the South Peninsula. This year, we have seen a number of cyclonic circulation and troughs forming over the Bay of Bengal leading to frequent rain activities over Andhra Pradesh and Tamil Nadu. Induced cyclonic circulation and troughs forming over Central India impacted the rainfall of Telangana.
No such weather system was seen over the Arabian Sea, which is why Karnataka, Kerala and Lakshadweep did not receive enough rain.
A cyclonic circulation is persisting over the Southwest Bay of Bengal and strong Northeasterly winds are blowing over Tamil Nadu. Light to moderate rain with an isolated heaviest pulse have occurred over Southern parts of Tamil Nadu. Scattered rain activities are possible to continue over parts of Tamil Nadu and isolated pockets of Kerala and Lakshadweep during the next 2 to 3 days. However, the weather of Andhra Pradesh and Karnataka will remain almost dry.
