Chennai, suburbs to receive rain in next 48 hours: IMD – Times of India

CHENNAI: The city and several other districts in the state are likely to receive more rain in the coming days due to favourable weather conditions and a likely withdrawal of the southwest monsoon from October 6.
The monsoon withdrawal will pave the way for the onset of northeast monsoon, which brings more than 60% of the city’s annual rainfall. IMD has forecast thunderstorms with light to moderate rain in the city and the suburbs at least for the next two days and heavy to very heavy rainfall over parts of southern districts in the state till October 4.
Maximum and minimum temperature could hover at 31 deg C and 25 deg C.
N Puviarasan, director, Area Cyclone Warning Centre, IMD said an upper air circulation over the south Bay of Bengal will trigger the convective rainfall activity. “As it moves from west to east from the sea towards the land, it’s the easterly trough is likely to bring widespread rainfall in the state,” he said.
On Thursday, IMD announced that southwest monsoon will begin withdrawing from parts of northwest India around October 6.
The normal onset date for northeast monsoon is October 20 with a deviation of six days.
The monsoon is expected to bring 867 mm rainfall to the city between October and December, which is nearly 63% of the city’s 1383.9mm annual rainfall.
The June to September season has concluded with Nungambakkam recording 558mm rainfall and Meenambakkam 497.9mm which were 115.4mm and 10.1mm in excess.
Chennai subdivision has so far received 500.2mm against a normal 459.9mm leaving a 9% excess rainfall during the same period. City’s neighbours Tiruvallur has recorded 19% and Kanchipuram 6% surplus rain while Chengalpet recorded 15% deficit rainfall during the season.
“We can expect late night or early morning rainfall in the city and as the day progresses, the action shifts to interior districts. The rainfall activity may continue till the first week of October,” said blogger Pradeep John.