Atmospheric instability in west and eastern Japan Be wary of extremely heavy rain August 20, 11:51
Due to the influence of the front, the atmospheric conditions in West Japan and East Japan are very unstable. Over the 21st, it is expected that very heavy rain of 50 mm or more will occur locally in 1 hour, and sufficient attention is required for landslide disasters and inundation of low land.
According to the Japan Meteorological Agency, due to the warm and humid air flowing from the western Japan to the eastern Japan, the atmospheric conditions in the western and eastern Japan become unstable, and rain clouds develop in various places.
In Unazuki, Kurobe City, Toyama Prefecture, 47 mm of heavy rain was observed in one hour until 11:00 am.
Air instability is expected to continue over 21 days in a wide area in western Japan and eastern Japan, and there may be a very heavy rain of 50 mm or more per hour with local lightning.
The amount of rain in 24 hours until the morning of the 21st is 120 mm in the northern part of Kyushu, 100 mm in the southern part of Kyushu and Tokai, Hokuriku, 80 mm in the Chugoku region and Kinki, 60 mm in Shikoku and Kanto Koshin. Expected, and it is expected that rainfall will increase around Hokuriku.
The Japan Meteorological Agency has called for careful attention to landslides, low land inundation, river flooding, lightning strikes, and tornado gusts.
If there is a sign that the developed cumulonimbus is approaching, such as sudden cold winds, move it into the building to ensure safety.