Due to the influence of low pressure and fronts, rain clouds that have developed in Hokkaido and Kyushu are spilling over, and it is necessary to be cautious about sediment disasters, inundation of low land, and flooding of rivers over the 25th.
On the 25th, cold air will flow into the sky, and the atmospheric conditions are expected to become unstable over a wide area from Tohoku to western Japan, so be careful of sudden heavy rains, lightning strikes, and severe gusts such as tornadoes.
According to the Japan Meteorological Agency, Hokkaido, Tohoku, and Kyushu are covered with developed rain clouds due to the influence of fronts extending from low pressure systems in the Sea of Japan.
In Hokkaido, it rains 30 mm per hour mainly on the Pacific side late at night on the 24th, and in northern Kyushu where the front is stagnant, it is extremely heavy 50 mm per hour with local lightning until the morning of the 25th. It may rain.
Furthermore, on the 25th, cold air of -6 degrees Celsius or less will flow into the sky, and the atmospheric conditions are expected to become unstable over a wide area from Tohoku to western Japan, and there is a risk of sudden heavy rain due to the development of rain clouds.
The amount of rain in the 24 hours until the evening of the 25th
is expected to be
180 mm in northern
Kyushu, 150 mm in southern Kyushu
, 100 mm in Tohoku, and 80 mm in Hokkaido and the Chugoku region.
increase.
The Japan Meteorological Agency is wary of sediment-related disasters, inundation of low land, and flooding of rivers, and is also calling attention to severe gusts such as lightning strikes and tornadoes, and hail.