New low-pressure in the making; Chennai, coastal TN districts may get heavy rainfall from November 9
The weathermen have issued a yellow alert for 11 districts, including Chennai, Chengalpattu, and Kancheepuram, which are likely to receive heavy rain on November 12 and 13
CHENNAI: A new low-pressure area is likely to form over the southwest Bay of Bengal in the next 48 hours and is likely to bring heavy rainfall over coastal districts of Tamil Nadu from November 9, stated weather department officials.
The capital city is likely to witness intense spells on November 12 and 13 under the influence of the new system, said officials, who have issued a yellow alert for 11 districts, including Chennai, Chengalpattu, and Kancheepuram.
According to the Regional Meteorological Centre, Chennai, under the influence of a cyclonic circulation persisting over the southwest Bay of Bengal on Friday, a low-pressure area is likely to form over the same area during the next 48 hours. It is likely to move westwards towards the Tamil Nadu and Sri Lanka coasts in the next two days.
The system is likely to trigger rainfall over coastal areas from Saturday (November 9), officials said. Heavy rain is likely to occur over isolated places in Chengalpattu, Villupuram, Cuddalore, Mayiladuthurai, Nagapattinam, Tiruvarur, Thanjavur, and Pudukkottai districts of Tamil Nadu for the next three days.
A few places over coastal and adjoining interior districts are likely to receive light to moderate rain along with thunderstorm activity.
The RMC has issued a yellow warning for 11 districts - Chennai, Chengalpattu, Kancheepuram, Ranipet, Villupuram, Cuddalore, Mayiladuthurai, Tiruvarur, Thanjavur, Nagapattinam, and Pudukkottai. These districts are likely to witness heavy rain on November 12 and 13.
As per the extended range predictions by the dynamical models, near-normal to slightly above-normal rainfall is very likely over coastal districts of the State. The rest of Tamil Nadu might receive below-normal rainfall till November 14.
Due to the new system that is likely to form in the next two days, the weather department has advised fishermen from Tamil Nadu not to venture into the sea until further notice. Squally weather with wind speed reaching 35 km/h to 45 km/h gusting to 55 km/h is likely to prevail over north and south Tamil Nadu coast, Gulf of Mannar, and adjoining Comorin area, they added.