A depression over the southwest parts of the Southern Bay of Bengal will likely track west-north-westwards and approach the south Andhra Pradesh coast to Tamil Nadu - Puducherry coasts and then weaken to a well-marked low-pressure area around November 22. Thereafter, it will likely move west-north-westwards towards north Tamil Nadu-Puducherry and south Andhra Pradesh coasts during the subsequent 3 days. Under its influence, scattered to fairly widespread rainfall is likely over South peninsular India, especially over Coastal Andhra Pradesh, Tamil Nadu, Puducherry & Karaikal, peaking on November 22-23. Further, a cyclonic circulation will likely form over the North Andaman Sea around Thursday and begin to affect Andaman & Nicobar Islands. During the next 24 hours, the depression over Southwest Bay of Bengal will continue its movement towards northwest direction and may get weakened into a well-marked low-pressure area by tomorrow morning November 22nd.