North coastal Tamil Nadu may begin to get rains from November 14 evening. There are chances for moderate rainfall over Chennai too from Wednesday due to a cyclonic storm brewing in the Bay of Bengal.

The well-marked low pressure area over south-east Bay of Bengal and adjoining north Andaman sea, about 1,220 km east south-east of Chennai and 1,270 km east south-east of Nellore is expected to become cyclonic storm by early hours of Monday. It is likely to move west south-westwards towards north Tamil Nadu and south Andhra Pradesh coasts by November 14 night.

According to IMD bulletin, there is a probability for the weather system to turn into severe cyclonic storm by November 13 with wind speeds gusting up to 135 kmph.