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NASA's rainfall analysis encompassed the period from November 19 to November 26, 2018, followed by a rain of 33W (Usagi) across the South China Sea to South East Asia. . The tropical storm Usagi or 33W has often dropped more than 240 mm (9.4 inches) of rainfall over southern Vietnam. Rainfall intensity decreased rapidly when the remains of Usagi invaded Cambodia. Credit: NASA / JAXA, Hal Pierce
When tropical cyclone 33W, also known as Usagi, intensified hurricane intensity as Vietnam approached the South China Sea, it dropped 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 (IMERG) data related to integrated multi-satellite extraction for GPM were used to show estimates of rainfall accumulation produced by Usagi when the tropical cyclone crossed the South China Sea. to reach 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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NASA sees stronger tropical cyclone 33W heading to Vietnam
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