Due to the influence of moist air, the atmospheric conditions have become extremely unstable over a wide area in western and eastern Japan, and it is believed that heavy rains of over 100 mm per hour have fallen in Kumamoto and Shizuoka prefectures.
Heavy rains may occur in western Japan and the Tokai region on the 9th, so strict caution is required for sediment-related disasters, inundation of low land, and flooding of rivers.
According to the Japan Meteorological Agency, warm and moist air is flowing from the south into the low pressure system in the Sea of Japan, which makes the atmospheric condition extremely unstable over a wide area of western Japan and the eastern sea, and rain clouds are developing locally. increase.
According to radar analysis,
▽ around Ashikita Town in Kumamoto Prefecture, about 110 mm per hour until 1 am,
▽ near Omaezaki City, Shizuoka Prefecture, about 110 mm per hour until 10 pm on the 8th. It seems that it has rained.
The Japan Meteorological Agency is calling for safety by releasing "record short-time heavy rain information" because the danger of a disaster is imminent.
In addition, during the hour until 1:00 am,
we observed a very heavy rain of 78.5 mm in Kumamoto Village, Kumamoto Prefecture, and a
heavy rain of 52 mm in Omaezaki City, Shizuoka Prefecture.
Due to the rain so far, the risk of sediment-related disasters has become extremely high in Shizuoka, Hiroshima, Ehime, and Kagoshima prefectures, and there are areas where "earth and sand disaster warning information" has been announced.
Atmospheric instability is expected to continue in western Japan and the Tokai region on the 9th, and heavy rains may occur in various places with lightning, and locally, extremely heavy rains of 50 mm or more per hour may occur. ..
If the rain clouds develop more than expected, or if the developed rain clouds stagnate, there is a risk of heavy rainfall exceeding expectations.
The Japan Meteorological Agency is calling for strict caution against sediment-related disasters, inundation of low land, and flooding of rivers, as well as caution against gusts such as lightning strikes and tornadoes.