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Low pressure area to form over Bay of Bengal, red alert for Chennai and 10 districts from Nov 10-12

Low pressure area to form over Bay of Bengal, red alert for Chennai and 10 districts from Nov 10-12
, Monday, 8 November 2021 (12:27 IST)
Chennai: A day after extremely heavy rains battered Chennai and suburbs, a low pressure area, under the influence of a upper air cyclonic circulation, is likely to form over Southeast Bay of Bengal and neighbourhood tomorrow, promising extremely heavy rains in Tamil Nadu for the next five days.

Met office sources on Monday said the low pressure area will become more marked and move west­-northwestwards towards North Tamil Nadu coast during the subsequent 48 hrs.

As the system was expected to move towards the TN coast, red alert--rainfall in excess of 20 cm--has been issued to 11 districts, including Chennai city, for three days from November 10 to 12, and orange alert--rainfall ranging from 11 to 20 cm--has been issued for 17 districts on November 10 and 11.

Red alert has been issued to Chennai, Tiruvallur, Kanchipuram, Chengalpet, Cuddalore, Villupuram, Mayiladuthurai, Thanjavur, Tiruvarur, Nagapattinam and Pudukottai districts.

Under its influence, thunderstorm with scattered heavy to very heavy rain with isolated extremely heavy rain is likely to occur over districts of North Coastal Tamil Nadu, Puducherry and Karaikal on Wednesday.

Thunderstorm with heavy to very heavy rain is also likely to occur at isolated places over interior districts and at isolated places over South Tamil Nadu. Thunderstorm with moderate rain is likely to occur at most places over the rest of the State.

On November 11, thunderstorm with scattered heavy to very heavy rain with isolated extremely heavy rain is likely to occur over districts of North Coastal Tamil Nadu, adjoining interior Tamil Nadu, Puducherry and Karaikal.

Thunderstorm with heavy to very heavy rain is likely to occur at isolated places over Nilgiris, Coimbatore, Erode and Krishnagiri districts. Thunderstorm with heavy rain is also likely to occur at isolated places over Madurai, Virudhunagar and Cauvery delta districts, while moderate rain is likely to occur at most places over the rest of the State.

Heavy to very heavy rain is likely to occur at isolated places over Kanyakumari, Tirunelveli, Thenkasi and Thoothukudi districts. Heavy rain is also likely to occur at isolated places over Cuddalore, Ariyalur, Perambalur, Dindigul and delta districts and Karaikal.

Scattered heavy to very heavy rain with isolated extremely heavy is likely to occur over districts of North Coastal Tamil Nadu, adjoining interior Tamil Nadu, Puducherry and Karaikal.

Thunderstorm with lightning is likely to occur at isolated places over Tamil Nadu, Puducherry and Karaikal area till November 11. (UNI)

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