Heavy Rainfall Warning No.(40)

Heavy Rainfall Warning No.(40)

Issued at 08:00 hours M.S.T on 9-8-2026

          According to the observations at 06:30 hrs MST today, due to the strong monsoon over the Andaman Sea and South Bay of Bengal, due to the low pressure area over the South West Bengal and adjoining North Odisha, India and the strong development of the convective clouds, rain or thundershowers are likely to be fairly widespread to widespread in Naypyitaw, Yangon, Mandalay, Bago, Magway, Sagaing, Ayeyarwady, Taninthayi Regions and Kachin, Kayah, Kayin, Chin, Mon, Rakhine, Shan States with likelihood of isolated heavyfalls during today morning to 12-8-2026. 

          Occasional squalls with rough seas will be experienced in Gulf of Mottama, off and along Mon-Tainthayi Coasts. Surface wind speed in squalls may reach 35 m.p.h. Wave height will be about 9-11 feet in Gulf of Mottama, off and along Mon-Taninthayi Coasts. Squalls with moderate to rough seas are likely at times Deltaic, off and along Rakhine Coasts. Surface wind speed in squalls may reach 25-30 m.p.h. Wave height will be about 7-9 feet in Deltaic, off and along Rakhine Coasts.  

Advisory       

          People should be awared due to the strong monsoon over the Andaman Sea and South Bay of Bengal, due to the low pressure area over the South West Bengal and adjoining North Odisha, India and the strong development of the convective cloud, such as the heavy rainfall with strong wind, flash flood and landslide in the hilly areas and near small rivers and inland water transport and domestic flight.