Due to the approach of a front and a low pressure system, the atmospheric conditions will become unstable in northern Japan and Niigata Prefecture, causing localized extremely heavy rainfall.
In areas such as northern Tohoku, where river flooding and landslides have occurred one after another, the danger of disasters is likely to rise again, and strict vigilance is required.
North Japan/Niigata Heavy rain threatens
According to the Japan Meteorological Agency, warm and moist air is flowing toward the front extending over the Sea of Japan, causing unstable atmospheric conditions on the Sea of Japan side of Hokkaido and Tohoku, and rain clouds are developing locally.
In the hour until 5:00 pm, a rain gauge installed by the Ministry of Land, Infrastructure, Transport and Tourism in Yurihonjo City, Akita Prefecture observed 33 mm of heavy rain.
Due to the rain so far, the risk of landslide disasters has increased significantly in Akita Prefecture, and there are areas where ``Sediment disaster warning information'' has been announced.
Record heavy rain fears again in northern Japan
A low-pressure system accompanied by a front is expected to pass through northern Japan on the 16th, and then the front is expected to move southward to the vicinity of western Japan on the 17th.
▽In Tohoku and Hokkaido from the 17th,
▽In Niigata Prefecture and the Sea of Japan side of western Japan from the 16th to the 17th, there will be heavy rain accompanied by thunder, and there is a risk of localized very heavy rain.
In particular, on the 16th, there is a risk of record-breaking rainfall of 80 mm or more per hour locally on the Sea of Japan side of the Tohoku region.
The amount of rain that will fall in the 24 hours until the evening of the 16th
is expected to be large in all of the areas,
▽ 250 mm on the Sea of Japan side of
Tohoku, ▽ 150 mm on the Pacific side of Hokkaido and Tohoku, and ▽ 80 mm in Niigata Prefecture.
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The amount of rain falling in the 24 hours until the evening of the 17th will be heavy in each of the following areas:
▽100 to 200 mm in Niigata Prefecture, Hokuriku, and the Chugoku region,
▽100 to 150 mm in northern Kyushu, and
▽50 to 100 mm in Tohoku. mm is expected.
The Japan Meteorological Agency is strictly vigilant against sediment-related disasters, as well as rising rivers, flooding, and flooding of low-lying land.
It has been raining since last week, and in the northern part of the Tohoku region, where the rainfall has already reached a record high, the ground has loosened due to the rain, and the risk of landslides and floods continues to be high.
If it rains again, the risk of a disaster occurring may suddenly increase, so please ensure your safety as soon as possible.
Life-threatening heat
On the other hand, on the 15th, it was sunny and warm mainly in western
Japan, and the maximum temperature during the day was
▽ 38 degrees in Toyooka City, Hyogo Prefecture
, 36.3 degrees in Osaka City,
▽ 35.2 degrees in Fukuoka City and Nagoya City.
It was a hot day in various places.
On the 16th, the temperature is expected to be even higher than on the 15th, mainly in eastern and western Japan.
The maximum temperature during the day on the 16th is
▽ 39 degrees in Maebashi City and Kumagaya City, Saitama Prefecture, and
▽ 38 degrees in Utsunomiya City and Saitama City, and
life-threatening dangerous heat is expected.
In addition,
▽ 37 degrees in Oita, Takamatsu and Toyama,
▽ 36 degrees in central Tokyo, Matsuyama and Miyazaki, and
▽
35 degrees in Fukuoka, Osaka and Fukushima.
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During the daytime on the 16th, avoid going out as much as possible, refrain from exercising except in special cases, and take extra measures against heatstroke, such as taking off your mask and taking a break when there is little conversation outdoors.
Rain on the 16th could trigger a disaster
In Tohoku and Hokkaido, the rain is expected to intensify again as the front approaches from the 16th.
In particular, the rain is expected to intensify during the daytime hours of the 16th, when the low pressure system is approaching, and there is a risk that this rain will trigger disasters in areas that are already experiencing heavy rain.
Record heavy rain already hits northern Tohoku
Due to the active front, it has been raining in northern Tohoku since last week, and some places have already experienced record heavy rainfall.
The amount of rainfall from the beginning of the fall on the 8th to noon on
the 15th in
Akita Prefecture was
▽ 384 mm in Kazuno City,
▽ 352 mm at Odate Noshiro Airport,
▽ 341 mm in Odate City, etc.
There are places where the amount of rainfall has exceeded twice that of
In Aomori Prefecture, the amount of rainfall in 72 hours from the 9th to the 12th of this month was
the highest in the history of observation at
▽
402 mm at Mt.
Risk of “trigger” due to approaching low pressure
In Tohoku, there are areas where the ground has become loose due to the heavy rains and the water level of rivers continues to be high.
The front is approaching again, and rain clouds have already developed in Tohoku and Hokuriku.
Heavy rain is expected in Tohoku and Hokkaido over the next 16 days, but the Japan Meteorological Agency is paying particular attention to the movement of the "low pressure" on the front.
This low pressure system is expected to pass through the vicinity of Hokkaido from west to east during the daytime on the 16th, and as the low pressure system approaches, the influx of moist air from the south concentrates, causing active rain cloud activity. The rain is expected to intensify.
For this reason, in areas where the danger is already high, new rains may "trigger" disasters such as landslides and river floods.
Regarding the forecast of rain in the Tohoku region over the 16th, the Japan Meteorological Agency is calling for caution, saying, ``There is a risk of record heavy rain mainly on the Sea of Japan side.''
"Kikikuru (Risk Distribution)" on the Japan Meteorological Agency's website is a useful reference for understanding the risk of landslides, river floods, and inundation in your area.
Please check the latest information, check the situation around you, and take measures such as trying to evacuate early while talking to each other in your community and at home.
From tomorrow onwards, the front will move southwards, and heavy rain will occur in western Japan as well.
The Japan Meteorological Agency is calling for continued vigilance even after the 16th.
After the low pressure system passes northern Japan, the front is expected to move south until the 17th.
As moist air flows toward the front along the edge of the Pacific anticyclone, rain is expected to intensify from the 16th onwards in Niigata Prefecture and Hokuriku, as well as on the Sea of Japan side of western Japan, such as northern Kinki, Sanin, and northern Kyushu. I'm here.
From the 16th to Thursday the 18th, there is a risk of heavy rain with intermittent heavy rain.
Stay alert for the latest information as rain is expected to pick up later in the week in areas that are currently dry or light.