Powerful Typhoon Mindulle is forecast to bring strong winds and heavy rain to the Pacific coast of the northern and eastern parts of Japan on Friday.
The Meteorological Agency says the typhoon was over the sea south of the country as of 3 a.m. Wednesday and moving at a speed of 10 kilometers per hour.
The central atmospheric pressure is 935 hectopascals.
Winds of up to 180 kilometers per hour are blowing near the center. The maximum instantaneous wind velocity is 252 kilometers per hour.
Winds of more than 90 kilometers per hour are blowing within a 185-kilometer radius from the center.
Seas off the remote island region of Daitojima in Okinawa Prefecture are extremely rough.
The typhoon is likely to remain very powerful and come close to the Izu Islands on Friday.
Up to 300 millimeters of rain may fall in the 24-hour period until Friday morning in the islands.
Weather officials are urging people to keep updated with the latest information.