Monsoon wind is strong over South Bay of Bengal and southern parts of Myanmar and deltaic areas will have heavy rain, announced Department of Meteorology and Hydrology (DMH) on June 30.

Rain or thundershowers will be isolated in Nay Pyi Taw, lower Sagaing, Mandalay and Magway regions, and Eastern Shan State, scattered in Northern Shan State, fairly widespread in Yangon and Ayeyawady regions and Southern Shan State and widespread in the remaining regions and states with isolated heavy falls in Rakhine State.

The recorded rainfalls are 3.58 inches in Gwa, 2.56 inches in Myeik, 2.28 inches in Putao, 2.08 inches in Bago, 1.60 inches in Shan Ywar Thit, 1.57 inches in Theinzayet, 1.54 in Chaungsone, 1.50 inches in Mawlamyaing, 1.45 inches each in Thaton, Dawei and Longlon, 1.39 inches in Yay, 1.35 inches in Paingkyone and 1.34 inches in Mrauk-U.

Monsoon is moderate to strong over the Andaman Sea and South Bay and weak elsewhere over the Bay of Bengal.

Rain or thundershowers will be isolated in Nay Pyi Taw and Magway Region, scattered in lower Sagaing and Mandalay regions, Kayah State, fairly widespread in Yangon and Ayeyawady regions, Shan State and widespread in the remaining regions and states with isolated heavy falls in upper Sagaing and Taninthayi regions, Kachin and Mon states. Degree of certainty is 80%.

Squalls with moderate to rough seas are likely at times in deltaic areas, Gulf of Mottama, off and along Mon–Taninthayi coasts. Surface wind speed in squalls may reach 30 m.p.h. Sea will be slight to moderate elsewhere in Myanmar waters. Wave height will be about 7-9 feet in deltaic areas, Gulf of Mottama, off and along Mon –Taninthayi coasts and about 4-7 feet off and along Rakhine coasts.