Khanun, meaning "jack fruit" in Thai, later triggered heavy downpours over neighboring parts of North Korea before the storm dissipated over the Sea of Japan.
The Korea Times reports that North Korea, to control water levels, discharged water from its Hwangang Dam, located near the border with the South, for several hours.
This prompted some South Korean campers to evacuate, but no damages from the water release were reported.
Residents of flood-ravaged southern Japan were spared further inundations when Khanun veered eastward, skirting Okinawa and remaining well to the south of Kyushu Island.
Tropical Storm Khanun Track
Satellite Loop Data: CIMSS