Tropical Storm Mitag turned into a low pressure system over the Sea of Japan Thursday afternoon. But Japan's Meteorological Agency is still warning of localized heavy rains across parts of western Japan as well as the eastern and northern part of the country, where the system is headed.
The low pressure system is moving east over the sea, accompanied by a front. It is making the atmosphere in wide areas from western to northern Japan unstable and generating rainclouds in some areas.
In the hour to 7:30 p.m., 56 millimeters of rain fell in Hyogo Prefecture's Asago City and more than 30 millimeters was observed in Kozagawa Town, Wakayama Prefecture and Kumano City, Mie Prefecture.
For the 24 hours through Friday evening, weather officials forecast up to 150 millimeters of rainfall in the Kinki and Tokai regions, 120 millimeters in Hokkaido and 100 millimeters in the Tohoku region.
They also warn of large waves as well as strong winds with gusts of up to 126 kilometers an hour mainly in coastal areas facing the Sea of Japan in the Hokuriku and Tohoku regions.