The Regional Meteorological Department or RMC has informed today that due to the prevailing low pressure over the south Bay of Bengal, there would be heavy rains in many districts in Tamil Nadu from 23rd of December. The fishermen have been advised not to go into the sea for the next 3 days.
It must be noted that there is still a low pressure formed on 17th December over central parts of south Bay of Bengal & adjoining east equatorial Indian Ocean with associated cyclonic circulation extending till mid tropospheric levels. In the next 2 days, this low pressure is likely to move towards west north westwards towards the coast of Sri Lanka.
Predicting heavy rains from Friday onwards, a yellow warning has been issued to the districts like Ramanathapuram, Pudukottai, Thanjavur, Thiruvarur, Nagapattinam and Mayiladuthurai etc. For the next few days, the coastal district in TN would receive light to moderate rains.
It must be taken into note that in some areas in Chennai there might be light to moderate rains during the evening for the next 2 days.This would be due to a system that has formed over the sea. The maximum temperature is likely to be 29 degrees Celsius and the minimum temperature is likely to be 20 degrees Celsius. Warning has been issued to the fishermen regarding squally weather with winds speeds touching 35kmph to 45kmph gusting to 55kmph that is likely to prevail over gulf of Mannar, Coumorin sea along and off TN coast, SW Bay of Bengal off the Sri Lanka coast.