Torrential rain may hit Japan's Shikoku, Kyushu

TOKYO, Aug. 19 (Xinhua) -- Japan's weather agency on Monday said rain clouds are developing across western and eastern Japan, with the Shikoku and Kyushu regions expected to see torrential thundershowers due to very unstable atmospheric conditions.

According to the Japan Meteorological Agency (JMA), a cold air mass is flowing into western and eastern Japan at high altitudes, while moist air from a tropical storm