A low pressure area is likely to form over Southeast Bay of Bengal and adjoining Andaman Sea today (16th) due to the gyre over circulation over South Andaman Sea. It will move in west-northwest direction and may strengthen as a depression over South Bay of Bengal on 18th.
Due to this, light to moderate rain with thunder and lightning may occur at one or two places in Tamil Nadu, Puducherry and Karaikal today.
Due to the low pressure area, cyclonic winds are likely to prevail over South Andaman Sea and adjoining Southeast Bay of Bengal for 3 days from today. Therefore, fishermen should not go fishing.
Chennai and suburbs will have partly cloudy skies today. Moderate rain with thunder and lightning may occur in a few areas, said P. Chenthamarai Kannan, head of the Chennai Zonal Meteorological Research Center.
In the 24 hours that ended at 8.30 am yesterday, 12 cm of rain was recorded at Nalumku in Tirunelveli district, Mamallapuram in Chengalpattu district, 9 cm in Kakachi in Tirunelveli district, Kulasekarapatnam in Tuticorin district, and 7 cm in Keelgothaiyar in Kumari district.