Due to the influence of the cold air in the sky, the atmospheric condition will become unstable over a wide area from Tohoku to western Japan over the 12th, and there is a risk of extremely heavy rain accompanied by local lightning.
It is necessary to pay sufficient attention to sediment-related disasters and inundation of low land.
According to the Japan Meteorological Agency, the atmospheric conditions have become unstable over a wide area from northern Japan to western Japan due to the influence of cold air flowing over the sky near Japan, and rain clouds have developed locally.
In the hour until 5 pm,
we observed heavy rain of 33 mm with a rain gauge installed in Nambu Town by Tottori Prefecture.
Atmospheric instability is expected to continue from Tohoku to western Japan on the 12th, causing heavy thunderstorms in various parts of the country, and there is a risk of extremely heavy rains of 50 mm or more per hour locally.
The amount of rain in the 24 hours until the evening of the 12th is
expected to be
100 mm in Kanto Koshin and Tokai, Hokuriku, and Niigata prefectures,
and 80 mm in Tohoku, Kinki, and Chugoku regions.
The Japan Meteorological Agency pays close attention to sediment-related disasters, inundation of low land, and sudden flooding of rivers, and calls attention to lightning strikes, gusts, and "hail".