Photo/Illutration The predicted path of Typhoon No. 8 as of 9 a.m. on July 27 (Captured from the official website of the Japan Meteorological Agency)

Typhoon No. 8 is expected to approach northeastern Japan from late at night on July 27 through the early hours of July 28 where it could make landfall, according to the Japan Meteorological Agency.

Atmospheric conditions will likely become very unstable in the Tohoku, Kanto and Hokuriku regions and heavy rain of 30 milliliters or more per hour may fall in some areas through July 28, the agency said.

The typhoon has already forced Tokyo Olympic organizers to reschedule or delay some of the events.

The triathlon started at Odaiba Marine Park in Tokyo’s Odaiba waterfront district at 6:45 a.m. on July 27, 15 minutes behind schedule due to bad weather. But most of the other events have been held as scheduled.

Early in the morning that day, Hachijojima island south of Tokyo received 64.5 mm of rainfall an hour, a record high for July, according to the JMA. Choshi, Chiba Prefecture, registered a maximum wind velocity of 69.12 kph in the morning.

As of 9 a.m. on July 27, the typhoon remained mostly stationary over waters about 190 kilometers east-southeast of Choshi with a central barometric pressure of 990 hectopascals, maximum sustained winds of 72 kph and maximum instantaneous gusts of 108 kph.

The typhoon is expected to travel northward over the sea to approach east of Iwaki, Fukushima Prefecture, at 9 p.m. After making landfall, it will likely move over Tohoku and reach the Sea of Japan on July 28. The typhoon is forecast to weaken to an extratropical cyclone after that.

The expected rainfall for the 24-hour period through 6 a.m. on July 28 is 200 mm in the Pacific side of Tohoku, 150 mm in the Sea of Japan side of Tohoku and 100 mm in Niigata Prefecture and northern Kanto.

Rain is forecast in Kanto, mainly on July 27, but Tohoku and Hokuriku can expect 50-100 mm of rainfall over the following 24 hours as well.

High waves are also forecast due to strong winds from the typhoon. Waves as high as 6 meters will likely hit the Pacific side of Tohoku through July 28, while Kanto can expect 5-meter waves.

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