Intermittent bouts of torrential rain continue to pound wide areas of Japan due to unstable atmospheric conditions.
Weather officials say 51 millimeters of rain was recorded between 2:30 and 3:30 a.m. in Daisen City in the northeastern prefecture of Akita.
The risk of landslides has increased in parts of some prefectures along the Japanese archipelago.
Rainfall of more than 50 millimeters per hour is possible before Tuesday evening in the Tohoku and the Hokuriku regions. More than 50 millimeters per hour may be seen in the northern parts Kyushu before noon on Tuesday.
In the 24 hours through Wednesday morning, up to 200 millimeters of rain is expected in the Tohoku and the Hokuriku regions. 150 millimeters is expected in the Tokai region and 100 millimeters is expected in the Kanto-Koshin region.
Weather officials warn of mudslides, swollen rivers, flooding in lowland areas, lightning, and freak winds.