In Aomori and Akita prefectures, which have experienced record-breaking rainfall due to fronts and other factors, rain clouds that have developed for 12 days have continued to increase rainfall in various places.
There is a risk of heavy rain due to extremely unstable atmospheric conditions through the 13th as well.
According to the Japan Meteorological Agency, rain clouds have developed for 12 days in northern Tohoku, such as Aomori and Akita prefectures, due to the effects of a front and a low pressure system near northern Japan, causing intermittent heavy rain. .
According to radar analysis by the Japan Meteorological Agency, around Oga City in Akita Prefecture, it is believed that about 30 mm of heavy rain fell in one hour until 6:00 pm.
The amount of rainfall from the start of rain on August 8 to 6:00 p.m. in
Aomori Prefecture was
▽Dake in Hirosaki City, ▽443mm,
▽Fukaura Town, 4323mm,
▽Ajigasawa Town, ▽344.5mm,
▽
Aomori City, 295mm.
Mutsu City has 289.5 mm, and
Akita Prefecture's
Happo Town has 311.5 mm
.
In Aomori, Akita, and Iwate prefectures, the risk of landslide disasters has increased significantly due to the rain so far, and there are areas where "landslide warning information" has been announced.
Even light rain can cause disasters
This is the outlook for the future.
As warm, moist air is flowing toward the front extending near northern Japan, the atmospheric conditions in the Tohoku region are extremely unstable. There is a risk.
The amount of rain that will fall in the 24 hours until the evening of the 13th in Tohoku is expected to be 100 mm in many places, and there is a risk that the total rainfall will increase further in the northern Tohoku region, which is experiencing record heavy rain.
In addition, although the activity of the front will weaken temporarily around the 14th, a new front will extend from the west to the vicinity of northern Japan from around the 15th of this month, and activity is expected to become active again.
The Japan Meteorological Agency continues to remain vigilant against landslides, low-lying land inundation, and river flooding, and calls for caution against severe gusts of wind such as lightning strikes and tornadoes, as well as "hail."
It's already raining heavily in various places, and even a little rain can cause disasters.
Please spend some time in a safe place.
Since it overlaps with the Obon season, please check the latest information.
Beware of “long-term rain accumulation type” disasters
A series of heavy rains in the northern part of the Tohoku region caused record heavy rains in the Tsugaru region of Aomori Prefecture, around Aomori City, and in Akita Prefecture, with many areas reaching 1.5 times the maximum amount of rainfall ever observed.
Since the front will continue to stagnate, it is necessary to be vigilant against the so-called "long rainfall accumulation type" disasters caused by long-lasting rainfall in various places.
Aomori Fukaura Town More than double the rainfall in August of a normal year
Due to the stagnant front, the Tsugaru region of Aomori Prefecture experienced record-breaking rainfall three days ago on the 9th of this month, and flood damage occurred one after another in the towns of Fukaura and Ajigasawa.
From the beginning of the rain on the 8th to 3:00 pm on the 12th, Fukaura Town received 432.5 mm, and Ajigasawa Town received 344.5 mm, which is more than double the amount of rainfall for the entire month of August in an average year.
In addition, heavy rains are falling in
Aomori
City
and Akita Prefecture, and the maximum rainfall in 72 hours is the highest in the history of observation at 3:00 pm
. Betsucho ,
▽
Wakinozawa, Mutsu City, ▽Ainai, Goshogawara City, ▽Sotogahama Town
,
▽Goshogawara City,
▽Aomori City,
▽Ajigasawa Town,
▽Aomori Airport,
▽Fukaura Town,
▽
Mt .
Sukayu,
▽Owani Town,
▽Nukawa in Hirakawa City,
▽16 points in Ikarigaseki, Hirakawa City.
Akita Prefecture consists of
▽ Odate City,
▽ Odate Noshiro Airport,
▽ Odate City Jinba, and
▽ Happo Town.
When the Japan Weather Association analyzed the amount of rainfall for 72 hours from 9:00 am on the 9th to 9:00 am on the 12th of this month, in addition to the area around Sotogahama Town and Goshogawara City in Aomori Prefecture, the area around Mutsu City and Akita Prefecture. Some places, such as around Noshiro City, have reached 1.5 times the maximum rainfall observed in the past.
"Long-term rain accumulation type" disasters that make it difficult to have a sense of crisis
In these areas, there is a possibility that the sudden intensification of the rain may not be felt due to intense rain, but even a little rain may cause a disaster due to the loosening of the ground.
Such disasters are also called "long rainfall accumulation type" disasters, which are caused by prolonged rain without sudden intensification of rain.
The debris flow that occurred in Atami City, Shizuoka Prefecture in July last year led to a major disaster due to the effects of not-so-strong rain that continued for a long time.
In this disaster, heavy rain of 30 mm or more per hour was not observed, and it continued to rain for several days. did.
In Kure City, Hiroshima Prefecture, where a series of landslides occurred due to the torrential rains in western Japan in 2018, it continued to rain around 10 mm, and sometimes extremely heavy rain of 50 mm or more fell, but most of it was rain that I usually experience. did.
Residents also say, "It was difficult to have a sense of crisis."
Even if the rains abate, be on your guard against 'long rain accumulation' hazards due to long rains.
Check the degree of danger in situations where disasters are likely to occur
In order to protect yourself from disasters, pay attention to evacuation information from local governments, and refer to ``Landslide warning information'' and ``Inundation risk information'' announced when the risk of a disaster increases.
In addition, you can check the risk of landslides, river floods, and inundation on the website of the Japan Meteorological Agency.
Please check the latest information and the situation around you, and try to evacuate early.