Due to the effects of low pressure systems and fronts, there is a risk of extremely heavy rainfall locally over the 25th in northern Japan and Kyushu, so caution is required against sediment disasters, inundation of low land, and flooding of rivers.


On the other hand, it is expected that there will be a hot day in western and eastern Japan, so be wary of heat stroke.

According to the Japan Meteorological Agency, due to the influence of the front extending from the low pressure system in the Sea of ​​Japan, developed rain clouds are shining on Hokkaido and Tohoku.



Warm and moist air flows from the south toward fronts and cyclones, which can lead to extremely heavy rainfall of 50 mm or more per hour with local lightning in northern Japan and northern Kyushu.

The amount of rain in the 24 hours until the morning of the 25th is expected to be 180 mm in Hokkaido, 120 mm in northern Kyushu, and 100 mm in the Chugoku region.



In addition, it is expected that it will rain 50 to 100 mm in many parts of northern Kyushu in the 24 hours until the morning of the 26th.



On the Sea of ​​Japan side of Hokkaido, the wind is getting stronger and the maximum instantaneous wind speed may reach 35 meters.



The Japan Meteorological Agency calls for caution against sediment disasters, low land inundation, and river flooding.



Also, in Hokkaido, caution is required against storms.

Be wary of heat stroke even when forecasting a hot day

On the other hand, it is expected that the heat will be severe in western and eastern Japan due to the increased overhang of high pressure.



The highest temperature during the day is expected to be 36 degrees in Toyama City, 35 degrees in Matsuyama City and Takamatsu City, 34 degrees in Oita City and Niigata City, and 31 degrees in central Tokyo. It is expected.

Furthermore, from the 25th to next week, it is expected that there will be a hot day of 35 degrees or more in the inland area of ​​Kanto Koshin.



You are not accustomed to the heat during this time, so be wary of heat stroke by hydrating frequently and using air conditioning properly.



In addition, cumulonimbus clouds develop mainly in the afternoon when the temperature rises, and there is a risk of heavy rain accompanied by lightning locally.



Be careful of sudden heavy rains, lightning strikes, and gusts such as tornadoes.