Highest level heavy rain warning issued for Japan's Kumamoto Prefecture
It is extremely likely that serious flood-related disasters have already occurred in the area. The agency is urging people to take immediate action to protect themselves.
The agency says warm, moist air flowing into a rain front is bringing record rainfall to Kumamoto. Bands of heavy rain clouds over the prefecture triggered a warning of significant rainfall.
Extremely heavy rain could continue in the Kyushu region. The meteorological agency says the risk of disaster could rise rapidly.
The agency says bands of rain clouds could develop through Monday morning over Kumamoto Prefecture, as well as Fukuoka, Saga, Nagasaki and Oita prefectures.
The linear rain clouds could also develop through noon Monday over Kagoshima Prefecture, excluding the Amami region, and Miyazaki Prefecture.
A low pressure system is expected to move close to the Hokuriku region through Monday evening. A front will persist in areas from the Sea of Japan side of western Japan to the Tohoku region through Tuesday.
Rain is also expected to intensify in eastern and northern Japan.
In the 24 hours through early Tuesday, up to 250 millimeters of rain is expected in northern Kyushu, Shikoku and Tokai, and up to 200 millimeters in southern Kyushu and Kanto-Koshin. Up to 180 millimeters of rain is likely in the Kinki region, and up to 100 millimeters in the Chugoku and Hokuriku regions and Yamaguchi Prefecture.
Rain is expected to continue. In the 24 hours through early Wednesday, 150 millimeters of rain is forecast for northern Kyushu and Kanto-Koshin, 120 millimeters for Hokuriku, and 100 millimeters for Tokai.
People in Kyushu and Yamaguchi Prefecture are advised to be cautious against landslides, flooding in low-lying areas, rising river water levels and river flooding.
People in eastern and northern Japan are also urged to watch out for landslides, flooding in low-lying areas, high river water levels and overflowing rivers.
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