Super typhoon Hinnamnor expected to hit Busan on Tuesday: DONG-A ILBO


Super Typhoon Hinnamnor, the 11th cyclone of the year, is expected to hit Korea’s Busan and southern coastal areas of South Gyeongsang Province on Tuesday, changing its course from what was originally predicted. The typhoon’s course may shift westward, increasing the chances of penetration through the interior. In this situation, emergency preparations for the super-powerful typhoon are now more urgent than ever, as the storm could significantly impact Korea’s metropolitan areas, including Seoul, as well as its southern provinces.

During its emergency briefing held on Friday, the Korea Meteorological Administration (KMA) announced that Typhoon Hinnamnor is expected to make landfall in coastal areas of South Gyeongsang Province. According to the agency, the typhoon is most likely to arrive in coastal areas of Busan early Tuesday morning. The KMA had originally forecast until the day before the briefing that the typhoon would pass 50 kilometers off the city of Busan in the Korea Strait.

But the planned path was changed in a single day, from passing to landing. The KMA explained that the track changed because high atmospheric pressure in the North Pacific located in the eastern part of the typhoon expanded, possibly pushing the cyclone further west.

By the time Hinnamnor lands on the Korean Peninsula between Monday evening and Tuesday morning, its central pressure is expected to reach between 940 and 950 hPa. Typhoon Sarah in 1995 and Typhoon Maemi in 2003, which both devastated the country, recorded central pressures of 951.5 hPa and 954 hPa, respectively. The lower the central pressure, the stronger the typhoon becomes by sucking in the air around it. Wind speeds in Hinnamnor are expected to exceed 50 meters per second (180 kilometers per hour), meaning the typhoon would be powerful enough to send people flying and destroy buildings.

Hinnamnor’s track could shift further west, depending on wind speeds from the typhoon’s center and surrounding atmospheric pressure systems. The KMA analysis system (data model) predicted that the typhoon could land on the coastal areas of South Jeolla Province, brushing the western part of Jeju Island. In this case, the typhoon will sweep through larger areas of the country. And some of the southern regions of Gyeongsang and Jeju Island may even fall into the “dangerous semi-circle”, the side of a tropical cyclone to the right of the direction of motion whose winds are stronger because the speed of translation of the cyclone and the rotating wind field add up.

Mee-Jee Lee [email protected]

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