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More torrential rain expected across Japan through Aug. 19

This image from the Japan Meteorological Agency website shows precipitation over Japan as of 1:10 p.m. on Aug. 16, 2021.

TOKYO -- More torrential rain accompanied by thunderstorms is expected to lash areas ranging from western to northern Japan through Aug. 19, the Japan Meteorological Agency (JMA) has warned.

    The agency is calling for people to be on their guard against landslides, flooding in low-lying areas, high river levels and river flooding.

    Over the 24-hour period up until 6 a.m. on Aug. 19, the agency said rainfall could reach up to 200 millimeters in the southern Kyushu region in southwestern Japan; up to 180 mm in the Shikoku region in western Japan; up to 150 mm in the Tokai region in central Japan; and up to 120 mm in the northern Kyushu region, western Japan's Kinki region, the Kanto-Koshin region including the greater Tokyo area, and in Japan's northernmost prefecture of Hokkaido. Heavy rain was also expected in the Chugoku region in western Japan, central Japan's Hokuriku region, and the Tohoku region in northeast Japan, the agency said, with maximum levels ranging between 80 and 100 mm.

    Rain was expected to continue in the Shikoku, Kinki, southern and northern Kyushu, Chugoku and Tokai regions the following day, with maximum levels ranging between 50 and 200 mm over a 24-hour period.

    The JMA said a weather front had extended from Central China to western Japan and the area off the Sanriku Coast in northeastern Japan, while a low-pressure system over waters off the Noto Peninsula in Ishikawa Prefecture on the Sea of Japan was moving northeast. The front was expected to reach the area near Hokkaido on the evening by Aug. 18. A combination of warm, moist air flowing from the south into the front and the low-pressure system, and cold air flowing in above them were creating extremely unstable atmospheric conditions, the agency said.


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