Weather report. Coastal areas of Tamil Nadu are expecting heavy rain next week, expected to spread southwards.

Fairly widespread rain may initially return to coastal Tamil Nadu before spreading to adjacent parts of the southern peninsula as easterly winds begin to moderate again after a similar event hit Thoothukudi early last week. Tenkasi and Kanyakumari Districts. 

Monitoring Needs

Weather maps do not show the development of a cyclonic circulation in the vicinity, one of which caused flash floods of up to 95 cm in 24 hours in Kayalpattinam, southern Tamil Nadu. However, this area should be closely monitored due to the predicted upwelling in the eastern Gulf of Mannar/Strait of Pak. In this regard, it is pertinent to note that the Indian Meteorological Department (IMD) has reported the formation of a circulation further south of Sri Lanka, and a strong easterly has hit Sri Lanka and the Southeast coast. Tamil Nadu In the northwest of Nadu. It may strengthen but move out from under the Sri Lanka/South India barrier into the open Indian Ocean by the end of December.

Isolated Shower

IMD for the week of 28/12/2024 to 03/01/2024 said that extreme regions of southern Peninsular India and Andaman & Nicobar and Lakshadweep Islands will experience light/moderate scattered and fairly widespread rain. A day or two of heavy rain is likely over Andaman and Nicobar Islands and Tamil Nadu during the week. Overall, the extreme southern peninsula of India will see normal to above normal rainfall during the week, while the rest of the country, except for the northeastern states and the Andaman and Nicobar Islands, will be mostly dry, The hills of West Bengal and Sikkim and northwest India with normal to below normal rainfall.

Global Model Forecast

Some global models indicate heavy rain in and near coastal Tamil Nadu from December to January 10 and above normal rainfall over most parts of peninsular India (Goa, South Maharashtra, Telangana, and South Andhra Pradesh ), rain is also likely over Madhya Pradesh and adjoining northern parts of Maharashtra. Heavy rains can also occur in other parts of the country and towards the end of January, the intensity of the rains will decrease, which will continue to be strongest on the coast of Tamil Nadu.

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