A very powerful typhoon with winds gusting more than 200 kilometers per hour is moving toward Japan's southern island of Okinawa, while Taiwan may get a second dose of a typhoon that hit there Friday.

The Japan Meteorological Agency said Saturday that Typhoon Bolaven will sweep directly over Okinawa Sunday, bringing as much as 50 centimeters of rain and causing waves of up to 12 meters.

As the cleanup began on the island of Taiwan, which was hit by a typhoon Friday, forecasters warned that Typhoon Tembin could make a turn and dump more rain on the island's southern agricultural area. The typhoon has been downgraded to a tropical storm.

Tembin unleashed torrential rain on Taiwan's southern tip. The storm was described as the worst in more than a century. The rain flooded farmlands, disrupted transportation and turned the normally bustling capital, Taipei, into what was described as a ghost town.