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Back to back depressions to give heavy rains over Tamil Nadu, Kerala to also receive good rains


Posted on : 30/Nov/2020 12:12:55 PM

After very severe cyclone Nivar, which made landfall near Puducherry and had given heavy rains over Tamil Nadu coast, a new low-pressure area is over the South Andaman sea. It is expected to intensify into a depression and move to south Tamil Nadu coast. Rain activities may commence over coastal districts of Tamil Nadu by the night of December 1st. Heavy to very heavy rain and thundershower activities are possible over Southern districts of the state. Places like Karaikal, Nagapattinam, Pudukkottai, Sivaganga, Ramanathapuram, and Thoothukudi may get extremely heavy rain on December 2nd. Chennai, Cuddalore, Puducherry, and northern districts of coastal Tamil Nadu will also receive heavy showers. Thiruvananthapuram, Kollam and Alappuzha Kerala will also receive heavy to extremely heavy rain.

Sea conditions will become rough to very rough between November 30 and December 3rd over Tamil Nadu coast, Comorin area, Gulf of Mannar, and south Kerala coast. This is the time when the system is expected to crossover to the south-east Arabian Sea and may intensify once again and move on west-northwest direction. As of now the probability of becoming a cyclone over Arabian sea cannot be ruled out.

Another low-pressure area is expected to develop over the south Andaman sea by December 2nd. This low-pressure area will also intensify into a depression and will take the similar track but it will be moving toward Central districts of coastal Tamil Nadu by December 6th. This weather system will give heavy to extremely heavy rain over Nagapattinam, Cuddalore, Chengalpattu, Villupuram, Ariyalur, and Thanjavur.

Chances of these weather systems of becoming cyclone seem to be less, as they will be fast-moving weather systems. They will not spend enough time in the deep sea to intensify in the cyclone. During the last week of November and in the month of December, low-pressure areas and depressions tend to form over the south-east Bay of Bengal, South Central Bay of Bengal and South Andaman sea. These weather systems usually move in West-Northwest direction and rarely recurves in the north east direction.

Courtesy : www.skymetweather.com

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