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When Tropical Cyclone 33W, also known as Usagi, suffered a high hurricane intensity when it approached Vietnam from the South China Sea, which caused a lot of rain. Although the storm lost some of its intensity due to the intensity of the tropical storm in Vietnam, it continued to generate a lot of rain and NASA added these heavy rains.
Very heavy rainfall and devastating winds accompanied the tropical storm Usagi when it hit the south coast of Vietnam. Rainfall greater than 350 mm (14 inches) would have been the cause of widespread flooding around Ho Chi Minh City.
NASA's data on integrated multi-satellite recovery for GPM (IMERG) have been used to show estimates of rainfall accumulation produced by Usagi when the tropical cyclone crossed the South China Sea to reach the sea. 39, Southeast Asia. An IMERG accumulation analysis conducted at NASA's Goddard Space Flight Center in Greenbelt, Maryland, covers the period from 19 to 26 November 2018. These data indicate that Usagi dropped moderate to heavy rains. along its path. The analysis showed that the tropical storm Usagi had often resulted in rainfall greater than 240 mm (9.4 inches) in southern Vietnam. Rainfall intensity decreased rapidly when the remains of Usagi invaded Cambodia.
GPM is a joint mission of NASA and JAXA, Japan's aerospace exploration agency.
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