Heavy Rainfall Warning No.(49)

Heavy Rainfall Warning No.(49)

Issued at 08:00 hours M.S.T on 18-8-2026

          According to the observations at 06:30 hrs MST today, due to the strong monsoon over the Andaman Sea and Bay of Bengal 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,  Kayin, Chin, Mon, Rakhine, Shan States with likelihood of isolated heavyfalls in Naypyitaw, Yangon, Mandalay, Bago, Ayeyarwady, Taninthayi Regions and Kayin, Mon, Rakhine, Shan States during this morning to 22-8-2026.

          Occasional squalls with rough seas will be experienced in Deltaic, off and along Rakhine Coasts. Surface wind speed in squalls may reach 35 mph. Squalls with rough seas are likely at times in Gulf of Mottama, off and along Mon-Taninthayi Coasts. Surface wind speed in squalls may reach 30 mph. Wave height will be about 9-11 feet in Deltaic, off and along Rakhine Coasts and about 8-10 feet in Gulf of Mottama, off and along Mon-Taninthayi Coasts.

Advisory      

          People should be awared are due to the strong monsoon over the Andaman Sea and Bay of Bengal and the strong development of the convective clouds 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.