According to the analysis by the Japan Weather Association based on the rainfall forecast up to the 18th of this month, the rainfall in Sanin and Hokuriku, as well as in Nagano and Gifu prefectures, may greatly exceed the highest rainfall in each region. I understand.
The Japan Weather Association says, "A disaster may occur and cause great human damage, so strict caution is required."
The Japan Weather Association used its own rainfall forecast to calculate the maximum expected 72-hour rainfall in each region during the period until 9:00 am on the 18th of this month.
Then, as a result of comparing with the highest rainfall in each region, it was found that the rainfall in a wide range from western Japan to eastern Japan may be equal to or higher than the highest rainfall in the past.
Especially in Sanin and Hokuriku, as well as in Nagano and Gifu prefectures, there is a possibility of record rainfall of around 1.5 times the maximum rainfall in the past.
According to the Japan Weather Association, most of the victims of the heavy rains in western Japan three years ago in July 2018 occurred in areas where the rainfall exceeded the record high in that area, and the number of victims increased sharply, especially when it reached around 1.5 times. It means that it was increasing.
Motohiro Homma, the chief engineer who analyzed it, said, "The amount of rainfall that causes a disaster varies from region to region. In the analysis, the risk of a disaster is extremely high and there is a possibility of causing great human damage. I want you to be vigilant. "