Typhoon Hinnamnor Approaches Jeju Early Morning and Busan by Morning on the 6th... Nationwide Rainfall of 300mm Expected

Moving northeast 480km southwest by south of Seogwipo
Distance from typhoon center: Jeju 530km, Tongyeong 730km, Busan 800km
Central pressure at Busan landfall expected to be 955hPa, similar to Maemi and Sarah
Maximum instantaneous wind speeds of 40-60m/s expected on Jeju Island and southern coast on 5th-6th
Over 200mm of rain forecasted in Jeju from the 4th to the morning of the 5th

[Asia Economy Reporter Han Jinju] Typhoon Hinnamnor, boasting unprecedented power, is moving northeast past the Seogwipo coast and will be closest to Jeju at dawn tomorrow and the Gyeongnam coast in the morning. Until the 6th, very strong winds of 40-60 m/s and heavy rainfall of 50-100 mm per hour are expected in Jeju and the southern coast.

According to the Korea Meteorological Administration on the 5th, Typhoon Hinnamnor, the 11th typhoon of the season, is moving northeast at 21 km/h about 480 km south-southwest of Seogwipo. The central pressure is 935 hPa, and the maximum wind speed is 49 m/s. As of 7 a.m., the distances from the typhoon center to major locations are Jeju 500 km, Tongyeong 710 km, Busan 780 km, Pohang 870 km, and Ulleungdo 1080 km.

Hinnamnor is expected to move north to about 130 km south-southwest of Seogwipo by 9 p.m. on the 5th and make landfall about 80 km north-northeast of Busan at 9 a.m. on the 6th. At the time of landfall near Seogwipo, the central pressure is expected to be 940 hPa with a typhoon intensity classified as 'very strong,' and at Busan landfall, the central pressure is expected to be 955 hPa with an intensity classified as 'strong.' 'Very strong' refers to maximum wind speeds between 44 m/s and less than 54 m/s, while 'strong' refers to maximum wind speeds between 33 m/s and less than 43 m/s.

Currently, typhoon warnings are in effect for the southern offshore waters of Jeju Island, the southern offshore waters of the West Sea, and the eastern offshore waters of the South Sea. Heavy rain warnings are in effect for Jeju Island, parts of the southern coast of Jeollanam-do, northern Gyeonggi Province, and western Gangwon Province. Strong wind warnings are in effect for Jeju Island, the Gyeongnam coastal area, and the southern coast of Jeollanam-do.

The period of greatest typhoon impact is from the 5th to the 6th. Maximum instantaneous wind speeds of 40-60 m/s are expected in Jeju Island, the southern coast of Jeollanam-do, the Gyeongnam coastal area, Ulleungdo, and Dokdo. Wind speeds of around 30-40 m/s are expected in eastern Gangwon Province, the eastern coast of Gyeongsangbuk-do, and the western coast of Jeollanam-do. Other southern regions, Chungcheong Province, and southern western Gangwon Province will experience strong winds of 20-30 m/s. The Seoul metropolitan area and central to northern western Gangwon Province will have strong winds around 15-20 m/s.

Walking becomes difficult at wind speeds starting from 17 m/s, trees can be uprooted at 25 m/s, and at wind speeds above 44 m/s, people and large rocks can be blown away by the wind.

Until the morning of the 6th, very heavy and intense rainfall of 50-100 mm per hour is expected in Jeju Island, the southern coast, the eastern coast of Gyeongsang Province, eastern Gangwon Province, the Jirisan area, Ulleungdo, and Dokdo. Other regions will see rainfall around 50 mm per hour. The expected total rainfall on the 5th and 6th is over 600 mm in the mountainous areas of Jeju, and over 400 mm in the southern coast, eastern coast of Gyeongsang Province, Jeju Island, the Jirisan area, and Ulleungdo and Dokdo.

The Korea Meteorological Administration advised, "Indoors, keep doors and windows closed, refrain from going outside, and frequently check weather conditions and real-time radar images. Avoid dangerous areas such as frequently flooded zones, landslide-prone areas, and areas near retaining walls or embankments. In case of emergency, evacuate quickly to a safe place."

On the 4th, as Typhoon Hinnamnor moves northward toward the Korean Peninsula, waves are crashing along the coast of Seogwipo, Jeju Island. (Photo by Yonhap News)

From the 4th until 7 a.m. on the 5th, Jeju experienced heavy rainfall exceeding 200 mm. Witseoreum in Jeju recorded 254 mm, Samgakbong 242.5 mm, and Gosan 215 mm. Due to the influence of a pressure trough, heavy rain also fell in western Gangwon Province and northern Gyeonggi Province.

There is a risk of storm surges in coastal areas. From the 5th to the 6th, in the seas around Jeju, the South Sea, the southern offshore waters of the West Sea, and the East Sea, very strong winds of 14-50 m/s and very high waves of 3-12 meters or more are expected until the morning of the 6th and 7th.

As the typhoon approaches, sea levels will rise and high waves will increase, causing waves to overflow coastal areas, breakwaters, and coastal roads on the Jeju and southern coasts and the southern West Sea coast on the 5th and 6th, and on the East Coast on the 6th. During high tide, low-lying coastal areas may experience flooding due to rainwater not draining and rising sea levels, so special caution is required.

This content was produced with the assistance of AI translation services.