If Kong-Rey continues moving as forecast, it's due to pass 104 miles west-southwest of Kadena at 2 a.m. Friday, still packing 92-mph sustained winds and 115-mph gusts - a Category 2-equivalent intensity.
A powerful typhoon is heading toward Okinawa Prefecture and may bring heavy rain to a wide area of Japan over the long weekend, the Meteorological Agency said Thursday.
NASA's Aqua satellite provided an infrared view of Super Typhoon Kong-Rey as it continued tracking through the Northwestern Pacific Ocean.
The entire nation will be affected by Typhoon Kong-rey into Saturday, Sunday is forecast to be dry and bright but expect cooler temperatures to set in.
The ex-typhoon has been travelling north-northwestward at a speed of 14mph over the past six hours.
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The Weather Channel noted that although the typhoon was expected to weaken when it approaches land, it could still be a formidable force, especially as Japan recovers from Typhoon Trami.
At least 15 people died and more than 600 were injured as Jebi became the strongest typhoon to hit Japan in 25 years.
In the 24 hours to noon on Friday, Okinawa could see downpours of up to 200 mm and be pounded by winds of up to 162 kph, with waves rising as high as 10 meters, the weather agency said.
Jeju and the southern regions will be hit by torrential rainfall until Saturday, up to 700 millimeters of rain will fall on the island.