According to the latest weather update by Skymet Meteorology Division in India, the Southwest Monsoon has entirely covered the Andaman Sea and conditions remain conducive for further advancement of Southwest Monsoon over more parts of southeast, eastcentral and some parts of northeast Bay of Bengal during the next 48 hours.
Port Blair in north Andaman Sea observed 20 mm of rain for the third consecutive day on Tuesday. In the next two days more rain is expected with one or two heavy spells at isolated places in the region. The low pressure area persists over eastcentral Bay of Bengal and is likely to move in a northerly direction during the next 24 hours. Such weather systems are instrumental for the onset and advancement of Monsoon.
Weathermen at Skymet are of the view that prior to the onset, such weather systems either in the Bay of Bengal or in the Arabian Sea help the cross equatorial flow to strengthen, after which the strong southwesterly winds sweep across Kerala coast, announcing the arrival of Monsoon.
The map in this article shows that after on time arrival, the eastern arm of the Monsoon has made more progress than the western arm and has reached Myanmar early this year. The red-dotted line in the map has been drawn by Skymet Meteorology Division in India. The green line shows the actual Monsoon line. The yellow-dotted line indicates the normal date of arrival of the Southwest Monsoon in India.
