Typhoon Chanthu will bring torrential rain to South Korea's southern regions starting Thursday ahead of the Chuseok holiday.
As of Wednesday afternoon, the typhoon is some 3-hundred kilometers south of Seogwipo, Jeju Island.
By 9 PM it will have traveled further northeast, and it will get closer to the island by Thursday night.
It is expected to keep moving up in the same direction, making its way toward the south coast near Busan, by Friday.
Then, it is forecast to pass through the Korea Strait by Saturday morning, heading towards the Japanese city of Nagoya.
The 14th typhoon of the year, is forecast to bring some 1-thousand millimeters of torrential rain.
Large parts of the south of the country will be affected.
The hardest hit region will be Jeju, especially from Thursday afternoon to Friday afternoon, where from 1-hundred to 3-hundred millimeters of rain is expected along with strong gusts.
Jeolla-do and Gyeongsangnam-do provinces will get from 30 to 80 millimeters on Friday.
However, the rain won't reach Seoul, Gyeonggi-do and Gangwon-do provinces.
Typhoon Chanthu's wind speed could reach up to 29 meters per second, or about 105 kilometers an hour.
It's not categorized as "strong" typhoon, but it is still powerful enough to blow a roof off a building.
Much caution is required, especially for those traveling ahead of the country's major Chuseok holiday.
Lee Kyung-eun, Arirang News.