West-East Japan May be heavy rain again on the 10th Strict warning such as sediment disaster July 8th 18:31
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Due to the stagnation of the front, the rainfall in Kyushu has exceeded 1,000 mm since it began to fall, and has tripled for one month in July, which is a record high rainfall in western and eastern Japan. ..
The risk of sediment-related disasters and river flooding continues to be high.
There is a possibility of heavy rain again in 10 days in western Japan and eastern Japan, so stay alert.
According to the Japan Meteorological Agency, warm and moist air flows in from the south of Kyushu toward the front extending to the northeast, and the atmosphere is unstable.
On Hirashima, Toshima Village in Kagoshima Prefecture, heavy rainfall of 30.5 mm occurred in one hour until 5:30 pm.
In Kanoya City, Kagoshima Prefecture, the amount of rainfall from the beginning of the 2nd of this month to 5 pm on the 8th has reached 1060 mm, triple that for July 1st of normal year, and on the 8th temporarily, Even in Gifu and Nagano prefectures where special warnings were issued, the amount of rainfall from the beginning of the 3rd of this month to 5 pm on the 8th was 870.5 mm at Mt. Ontake in Nagano prefecture and 740 mm at Hagiwara in Gero city, Gifu prefecture. , It has been a record heavy rain that exceeds July 1st of a normal year.
The risk of sediment-related disasters continues to be extremely high, and in some areas in Kumamoto, Kagoshima, Nara, Gifu, Shizuoka and Nagano prefectures, "earth and sand disaster warning information" has been announced.
In Fukuoka Prefecture, there are rivers that exceed the "flood risk water level".
Future outlook
The front line is expected to stagnate around 10 days, and heavy rain is accompanied by lightning over a wide area of western and eastern Japan on the 9th, and locally, extremely heavy rain of 50 mm or more per hour. There is a risk.
Even in Kyushu, where the heavy rains caused a great deal of damage, it is expected that the rain will intensify again.
It is expected that the amount of rainfall in the 24 hours until the evening of the 9th will be heavy in
▽ Kyushu and Shikoku, Kinki 200 mm,
▽ Tokai 180 mm,
▽ Kanto Koshin 100 mm,
▽ Hokuriku and Tohoku 60 mm It has been.
Rain continued to fall after that, and the amount of rainfall during the 48 hours until the evening of the 10th was
▽ 300 to 400 mm in Kyushu and Shikoku
▽ 200 to 300 mm in Kinki and Tokai
▽ 150 to 250 mm in Kanto Koshin
▽ It
is expected to be 100 mm to 150 mm in Hokuriku and 50 mm to 100 mm in ▽Tohoku.
In areas where heavy rains have occurred, the ground has become loose and there are places where river dikes have been damaged, and the risk of disasters continues to be extremely high.The Meteorological Agency is strict about landslides, river floods, and inundation of low land. In addition to being vigilant, we are calling for sufficient caution against heavy gusts such as lightning strikes and tornadoes.
In this heavy rain, there are many cases where the situation suddenly worsens in a short time.
It is important to move to a safe place while it is bright, but if it is dangerous, such as when you can not see your feet due to flooding, or the water flows vigorously from the slope, the height of a sturdy building nearby is high. On the floor, move to a room on the opposite side of the cliff or slope to secure yourself.
“I don't remember” long-term stagnation
The rainy season front, which is bringing record heavy rain to various places.
It will be stagnant along the archipelago after 3rd of this month, and it is expected that the position will not change significantly in the future.
A person in charge of the Japan Meteorological Agency also said, "I don't remember how long it is." The cause of the stagnation is the location and power of the Pacific High.
According to the Japan Meteorological Agency, there are many cases where the front line becomes stagnant and heavy rains at this time of the end of the rainy season every year, but the Pacific highs gradually increase in power and overhang near Japan, so the rainy front moves north and the rainy season begins. Drill.
However, since the pressure of the high pressure does not increase and the position hardly changes, the front has continued to stagnate near the archipelago without going north, and this state is expected to continue for at least 10 days.
Caution is also required for gusts such as tornadoes
Under cumulonimbus clouds that develop on the south side of the Baiu front, the risk of gusts such as tornadoes increases in addition to heavy rain.
In the morning of the 8th, the developed cumulonimbus passed near Toyohashi City in Aichi Prefecture, causing damage such as the roof of a house being blown off by a severe wind gust. It was.
Heavy rain and heavy gusts caused by the rainy season front, which is expected to stagnate in the archipelago.
We need to be vigilant in the future.