City likely to receive rain from tonight

City likely to receive rain from tonight

Intensity May Increase Tomorrow

TIMES NEWS NETWORK

Chennai:11.11.2020

After a brief lull, city residents must now brace for some heavy pre-Diwali spells and localised flooding, as weathermen have forecast rain to start from Wednesday night with intensity increasing from heavy to very heavy over localities on Thursday.

This round of rainfall is likely due to the presence of an elongated region of low pressure or a trough of low closer to north Tamil Coast. Private weather forecasters and bloggers said this round of monsoon spells will last for at least a week with a few days recording moderate to heavy spells expected in some parts of the state.

IMD has forecast thunderstorms with light to moderate rain with isolated heavy fall while the sky condition could be generally cloudy in the city for the next 48 hours. Maximum and minimum temperatures are likely to be around 30°C and 23°C. The agency has also issued a warning of heavy to very heavy rainfall with thunderstorm over isolated places in Chennai, Tiruvallur, Kanchipuram, Chengalpattu, Villupuram, Cuddalore, Mayiladuthurai, Thanjavur, Tiruvarur, Nagapattinam districts on November 12.

“There’s usually low pressure over the equatorial Indian Ocean this time of the monsoon. Under its influence, a trough in easterlies or a trough of low closer to the northern coast brings moist easterlies from the sea which converges closer to the coast resulting in rainfall. The rainfall could begin in coastal regions including Chennai from November 11 and after two or three days, winds could penetrate into interior regions bringing rainfall,” said N Puviarasan, director, Area Cyclone Warning Centre, IMD.

Weather blogger Pradeep John said trough, which is a remnant of cyclone Goni which made landfall in Philippines, could bring heavy rainfall in the city on November 12 followed by two days of light spells. The rainfall intensity picks up again on November 15 and 16, with interior districts too likely to get some spells. “Besides late night or early morning rainfall, this time we could also expect on and off spells in the city during the day. We can expect rainfall till November 18 or 19,” he said.

Skymet Weather, in its online update, said the coastal region of Tamil Nadu will be battered more than the interiors and that northern parts of the state will see rainfall intensity higher than the southern regions. It is because the equatorial belt has been active with two cyclonic circulations and the northeasterly winds have gathered strength all along the coast, which could trigger heavy rainfall over TN coast and south coastal AP.

“Some of the cities like Chennai, Puducherry, Karaikal, Cuddalore and Nagapattinam are at risk of localised flooding associated with incessant rains,” the private forecaster said.