<Tr> <Th> Areas affected </Th> <Td> Mariana Islands, Taiwan, Japan, Russian Far East, Arctic </Td> </Tr> <Tr> <Td_colspan="2"> Part of the 2018 Pacific typhoon season </Td> </Tr> <P> Typhoon Jebi, known in the Philippines as Typhoon Maymay, is considered to be the strongest typhoon to strike Japan since Typhoon Yancy in 1993 . Jebi formed as a tropical depression on August 26, before becoming the twenty - first named storm of the 2018 Pacific typhoon season on August 28 . It rapidly intensified into a typhoon on the following day and reached its peak intensity on August 31, after striking the Northern Mariana Islands . Jebi initiated a slow weakening trend on September 2 and made landfall over Shikoku, and then the Kansai region of Japan, as a very strong typhoon on September 4 . </P> <P> A low - pressure area formed near the Marshall Islands early on August 25 . It remained devoid of a low - level circulation center (LLCC) next day; however, the system developed further on August 27 and both the Japan Meteorological Agency (JMA) and the Joint Typhoon Warning Center upgraded it to a tropical depression, based on persistent deep convection wrapping into a consolidating LLCC . Early on August 28, the system was upgraded to a tropical storm, with JMA assigning the storm the international name Jebi . On the August 29, the JMA upgraded the storm to a typhoon, after it developed an eye with a central dense overcast, and underwent rapid intensification . Jebi continued to intensify, becoming the third super typhoon of the season and also the second Category 5 - equivalent super typhoon of the season . </P>

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