It is going to be an upcoming week of poor weather across Japan and southern areas of South Korea:

Typhoon Nanmadol, currently passing the waters east of Japan’s Okinawa, is expected to grow stronger Saturday before coming closer to South Korea in the next couple of days, the state weather agency said.
With a central atmospheric pressure of 920 hectopascals and a maximum wind speed of 53 meters per second, this year’s 14th typhoon was passing waters 520 kilometers east of Okinawa at 9 a.m., according to the Korea Meteorological Administration (KMA).
Nanmadol, currently a “very strong” typhoon, was forecast to develop into a “super strong” one later in the day.
Yonhap
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