Japanese weather officials are warning torrential rains may pound wide areas of western and eastern Japan over the weekend.
The Meteorological Agency says warm, damp air is flowing towards a seasonal rain front hovering over western and eastern parts of archipelago, destabilizing atmospheric conditions across wide areas.
The agency is urging people in those areas to stay vigilant against heavy rain and thunder through Sunday.
In the 24-hour period through Saturday evening, 300 millimeters of rainfall is forecast for the Shikoku region, 250 millimeters in Tokai, and 200 millimeters in southern Kyushu and Kinki. Kanto-Koshin can expect 150 millimeters, while 120 millimeters is forecast for Hokuriku, and 100 millimeters for Chugoku.
In the next 24 hours through Sunday evening, rainfall of up to 300 millimeters is expected in Tokai, 200 millimeters in Shikoku and Kanto-Koshin, 150 millimeters in Kinki and Hokuriku, and 100 millimeters in the Chugoku and southern Kyushu regions.
The officials are urging people to stay on the alert for landslides, rising rivers and flooding in low-lying areas.