Due to the influence of fronts and low pressure, the atmospheric condition will become extremely unstable from now on the morning of the 22nd, mainly in the Kanto and Tokai regions, and there is a risk of heavy rain with local lightning.


Be careful of landslides, low land inundation, river flooding, and gusts such as lightning strikes and tornadoes.

According to the Japan Meteorological Agency, a cyclone with a front near Kyushu is expected to travel along the southern coasts of western and eastern Japan over the 22nd.



For this reason, it is expected that the atmospheric conditions in the Tokai region will become extremely unstable from now on until the dawn of the 22nd, and the atmospheric conditions in the Kanto and Izu Islands will become extremely unstable until the morning of the 22nd.



Rain clouds develop and the weather becomes rough mainly during the time when a low pressure approaches, and there is a risk of heavy rain of 30 mm or more per hour and gusts of wind, accompanied by local lightning.



The amount of rain in the 24 hours until the evening of the 22nd

is expected to be


120 mm in Shizuoka prefecture,


100 mm in the Izu Islands, and 80 mm in Kanagawa and Chiba prefectures.

The Japan Meteorological Agency calls for careful attention to sediment-related disasters, inundation of low land, flooding of rivers, severe gusts such as lightning strikes and tornadoes, and "hail".

If there are signs that a developed cumulonimbus cloud is approaching, such as a sudden cold wind, move inside the building to ensure safety.