Due to the effects of low pressure and fronts, heavy rain with lightning may occur from the 29th to the 30th, mainly on the Pacific side from western Japan to northern Japan.
Careful attention should be paid to sediment-related disasters, inundation of low land, and severe gusts such as lightning strikes and tornadoes.
According to the Japan Meteorological Agency, a low pressure system will be generated on the front line extending from the continent to the vicinity of western Japan, and warm and moist air will flow in from the south, which is expected to cause unstable atmospheric conditions over a wide area from the 29th to the 30th. ..
It is expected that heavy rain of 30 mm or more per hour will occur with lightning, mainly from western Japan to the Pacific side of northern Japan, and there is a risk of extremely heavy rain of 50 mm or more per hour locally.
The amount of rain that falls in the 24 hours until the evening of the 29th is
expected to be
▽
200 mm in the Tokai
▽
150 mm in the Kanto Koshin
▽ 60 mm in the Tohoku
region
, and
then
24 hours until the evening of the 30th. It is
expected that it will rain 100
to 150 mm in the Tokai and Tohoku
regions and 50 to 100 mm in the Kanto Koshin region.
In addition, due to the development of low pressure, the wind is expected to gradually increase and the weather will be rough.
The Japan Meteorological Agency calls for careful attention to sediment-related disasters, low land inundation, and river flooding.
As cold air flows into the sky, pay close attention to severe gusts such as lightning strikes and tornadoes, as well as "hail" over a wide area including the Sea of Japan side of western Japan.
Cold air is expected to flow in after the 30th, and the unstable state of the atmosphere is expected to continue.
Although it will be a long holiday, please be careful about sudden changes in the weather when you are doing outdoor activities.