西にし～北きた日本にっぽん 大気たいきの状態じょうたいが非常ひじょうに不安定ふあんてい 四国しこくで非常ひじょうに激はげしい雨あめ

Due to the influence of the autumn rain front and other factors, the atmosphere is extremely unstable over a wide area from western to northern Japan, and very heavy rain is falling in Shikoku.

The extremely unstable atmospheric conditions are expected to continue until late at night on the 11th, so caution is needed for landslides and other disasters.

According to the Japan Meteorological Agency, due to the influence of a stationary autumn rain front and other factors, the atmosphere has become extremely unstable over a wide area. On the 10th, record-breaking heavy rain occurred, including the formation of a linear rainband in Nagasaki and Kumamoto Prefectures in the early morning. In addition, it is believed that torrential rain fell in Gunma Prefecture in the evening, prompting a series of record-breaking short-term heavy rain information announcements.

Because extremely heavy rain of over 100 millimeters was observed in Gifu Prefecture in the early hours of the 11th, a record-breaking short-term heavy rain warning was issued, and at this time, developed rain clouds are covering areas such as Shikoku, Hokuriku, and Tohoku.

In the one hour leading up to 7 a.m., an extremely heavy rainfall of 53 millimeters was observed by a rain gauge installed by the Ministry of Land, Infrastructure, Transport and Tourism in Kami City, Kochi Prefecture.

Due to the recent rain, the risk of landslides is extremely high in Niigata Prefecture. Landslide warning information has been issued for certain areas, so strict caution is necessary.

The front is expected to remain almost stationary, so from Kyushu to Tohoku, the atmosphere will likely remain extremely unstable until late at night on the 11th, and there is a risk of very heavy localized rainfall in western and eastern Japan.

Also, due to the influence of cold air aloft and a trough of low pressure in Hokkaido, there are expected to be places with heavy rain through late at night on the 11th.

The amount of rainfall expected in the 24 hours until the morning of the 12th is forecast to be up to 180 millimeters in southern Kyushu, 120 millimeters in Kanto-Koshin, and 100 millimeters in Tokai, among other areas.

Be alert for landslides, flooding in low-lying areas, and rising or overflowing rivers, and also watch out for lightning, tornadoes, strong gusts of wind, and hail.