The summer monsoon which brings over 75% of the annual rainfall over the country is likely to make a delayed onset this year on June 6
The monsoon current had weakened after it had first advanced into South Andaman Sea and Nicobar Islands on May 18
New Delhi: Having remained sluggish over the Andaman Sea for days, the southwest monsoon current is slowly gaining pace and is likely to advance over some more parts of north Andaman Sea, Bay of Bengal during the next two days, the India Meteorological Department (IMD) said.
The Jun-Sep summer monsoon which accounts for over 75% of India’s annual rainfall is likely to make a delayed onset over the Kerala coast this year on 6 June, under the shadow of weak El Nino conditions. The ocean phenomenon, characterised by higher than normal sea surface temperature in east central Pacific Ocean, is typically associated with below normal monsoon rainfall and droughts in India.
The IMD forecast that conditions are becoming favorable for further advance of the southwest monsoon into some parts of Maldives-Comorin area, South Bay of Bengal, Andaman Islands and north Andaman Sea over the next two days.
Under the influence of the system, widespread rainfall is likely over Andaman and Nicobar during the next 4 days. The monsoon current had weakened after it had first advanced into South Andaman Sea and Nicobar Islands on May 18 due to weak cross equatorial flow.
The weather bureau has advised fishermen not to venture into southeast Arabian Sea, near Kerala coast where squally weather is likely. Strong winds with speed reaching up to 50 kmph are likely to prevail over Andaman Sea and adjoining southeast Bay of Bengal, said IMD.
Thunderstorm and lightning coupled with winds gusting up to 50 kmph are also expected at isolated places over Tamil Nadu, Kerala, South Interior Karnataka, coastal Andhra Pradesh, Rayalaseema, Lakshadweep, West Bengal, and Odisha.
Most parts of the country will continue to reel under severe heat wave conditions, with maximum temperatures likely to rise and hover around 45°C during the day, the weather department said. Scattered rainfall is likely over some southern states, including Kerala, south Karnataka and coatsal Andhra Pradesh.
The western Himalayan region covering major parts of northeastern India is likely to receive widespread rainfall Thursday onwards.