The low-pressure area currently located near the Myanmar Delta coast is forecast to strengthen into a deep depression within the next 36 hours and may cross toward India, according to the Department of Meteorology and Hydrology (DMH). Due to the influence of the low-pressure system, isolated heavy rainfall is expected in Yangon, Mandalay, Bago, Magway, Sagaing, Ayeyawady, Tanintharyi, Kayin, Mon and Rakhine from September 21 to 25.
According to observations taken on the morning of September 21, a low-pressure area that had formed over the east-central Bay of Bengal and the northern part of the adjoining Andaman Sea, near the offshore area of Myanmar's Delta region, had moved into the east-central Bay of Bengal near the Myanmar Delta coast.
The low-pressure area is expected to move west-northwestward and strengthen during the next 18 hours, becoming a depression over the east-central Bay of Bengal. Within the next 36 hours, it may further strengthen into a deep depression over the west-central Bay of Bengal and continue moving west-northwestward.
Within the next 72 hours, the system is forecast to reach the west-central and adjoining northwestern Bay of Bengal, near the southern coast of Odisha and northern coast of Andhra Pradesh in India, according to the DMH.
Due to the influence of the low-pressure system, scattered rainfall is expected from September 21 to 25 in upper Sagaing Region, Kachin State and northern and eastern Shan State. Thundershowers are expected at isolated to widespread areas in Nay Pyi Taw, Yangon, Mandalay, Bago, Magway, lower Sagaing, Ayeyawady and Tanintharyi regions, as well as Kayah, Kayin, Chin, Mon, Rakhine and southern Shan states.
Isolated heavy rainfall is also possible in Yangon, Mandalay, Bago and Magway regions, lower Sagaing and Ayeyawady and Tanintharyi regions, as well as Kayin, Mon and Rakhine states.
Along the Myanmar coast and offshore areas, occasional squalls are expected, accompanied by rough seas. During squalls, winds may reach up to 35 miles per hour. Wave heights are expected to reach approximately 9 to 12 feet along the Myanmar coast and offshore areas.
The DMH has warned that heavy rainfall associated with the low-pressure system could bring strong winds, flash floods and landslides. Residents living near mountainous areas have been advised to remain alert to possible landslides, while those living near small rivers and streams should take precautions against flooding and inundation.
Domestic aviation operators, as well as nearshore and offshore fishing vessels and ships operating along the Myanmar coast and in offshore waters, have also been advised to exercise caution and take necessary precautions.
