TOKYO -- The Japan Meteorological Agency (JMA) is warning of possible landslides, flooding in low-lying areas and swollen rivers mainly on Japan's Pacific Ocean side from the evening of Oct. 21 through Oct. 22 as Typhoon Neoguri sweeps toward the archipelago after being downgraded to an extra-tropical cyclone.
Meanwhile, another storm -- Typhoon Bualoi -- is also heading toward the country's east coast, the JMA said.
As of 4 p.m. on Oct. 21, Typhoon Neoguri, this year's 20th, was about 280 kilometers south of Cape Muroto in the western Japan prefecture of Kochi and was heading north-northeast at about 45 kilometers per hour. The typhoon has a central atmospheric pressure of 990 hectopascals, maximum sustained wind speeds near its center of 30 meters per second (108 kph), and maximum gusts of 40 m/s (144 kph).
The typhoon is expected to be downgraded to an extratropical cyclone by the night of Oct. 21 when it is south of the Kii Peninsula in the western Japan prefecture of Wakayama.
The mid-latitude cyclone is then forecast to move northeast along the Pacific Ocean side of Japan through late on Oct. 22, before heading off the Sanriku coast in northeastern Japan on Oct. 23.
Neoguri is expected to bring thunderstorms and heavy rain to wide areas of Japan. The maximum rainfall forecasted over the 24-hour period up to 6 p.m. on Oct. 22 is 300 millimeters in the Tokai region in central Japan, 200 millimeters in the Kinki region in western Japan as well as the Izu island chain south of Tokyo, 150 millimeters in the Kanto-Koshin region in central and eastern Japan region, and 80 millimeters in the Hokuriku region along the Sea of Japan coast as well as the Tohoku region in northeastern Japan.
The weather agency is calling on people in affected areas to be on their guard against landslides, flooding in low-lying areas, swollen rivers, tornadoes and lightning.
The typhoon and the extratropical storm are also projected to cause rough seas through Oct. 22. In the Okinawa region, waves of up to 6 meters are forecast, while the Shikoku, Kinki and Tokai regions are expected to see waves of up to 5 meters high.
Meanwhile, the agency said Typhoon Bualoi, this year's 21st, is also heading toward Japan. As of 3 p.m. on Oct. 21, the typhoon was located near Mariana Islands in the Pacific Ocean and was moving west-northwest at a speed of about 20 kph. It had a central atmospheric pressure of 955 hectopascals and was packing sustained core winds of 40 m/s (144 kph) and gusts of up to 60 m/s (216 kph).