Winter news continues. First snowfall on Mt. Taihei in Akita Prefecture. Observation 4 days later than normal. Cold air coming in towards the beginning of the week (Weather Forecaster, Chief of the Day Shift, November 11, 2023) – Japan Weather Association tenki.jp
Winter news continues: First snowfall on Mt. Taihei in Akita Prefecture Observation 4 days later than normal Cold air inflows towards the beginning of the week
November 11, 2023 16:36
Today, the 11th, we have a winter-like atmospheric pressure pattern, with snow falling in Hokkaido and Tohoku on the Sea of Japan side. This morning we received many reports of the first snow in places like Sapporo and Aomori, and in the afternoon we observed the first snow cap on Mt. Taihei in Akita Prefecture. Cold air will move in towards the end of the week, and snow will fall in places on the Sea of Japan side.
First snowfall on Mt. Taihei in Akita Prefecture
Today, the 11th, we have a winter-like atmospheric pressure pattern, with strong cold air flowing in for this time of year. It snows in Hokkaido, and there are places where even the flatlands have snow. It snowed in the Tohoku region, with snow accumulating mainly in mountainous areas.
This morning we received many reports of the first snow in places like Sapporo and Aomori, but in the afternoon, we observed the first snow cap in Mt. Ohira in Akita Prefecture. The observation was 4 days later than normal and 7 days later than last year.
The influx of cold air continues
The winter-like atmospheric pressure pattern will continue from tomorrow, the 12th (Sunday) onward, and cold air will flow into the area around the 14th (Tuesday).
Snow will continue to fall on the Sea of Japan side of Hokkaido, and further snow is expected to accumulate mainly in inland areas. Snow will fall on the Sea of Japan side of Tohoku, and snow will accumulate mainly along the mountains. In Hokuriku, it is expected that there will be snow in some mountainous areas from the night of the 12th (Sunday) to the 13th (Monday). It looks like winter news will continue to arrive one after another.
This is the first real snow of the season, so please drive in winter gear and be aware of changes in road conditions.
What is the first snowfall?
First snowfall refers to when the area near the summit appears white due to falling snow for the first time, as seen from the meteorological office at the foot of the mountain, from August 1st to July 31st of the following year.
The first snowfall differs from the first snowfall in that it requires that the area near the top of the mountain looks white from the weather observatory at the foot of the mountain. Even if you climb a mountain and find that it’s snowing, it doesn’t mean it’s the first snowfall.
Also, it must be visible from the foot of the mountain, and no matter how much snow there is on the mountain, if it is blocked by clouds and cannot be seen, it will not be the first snowfall. The first snowfall occurs when the snow accumulates so much that it can be seen from a distance, and then it clears up and can be seen from the foot of the mountain.
(Note that the first snow cap on Mt. Fuji occurs on the day when the average daily temperature is the highest of the year. Observations show that the area near the summit appears white due to snow from the meteorological observatory at the foot of the mountain.) This is a condition.)
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2023-11-11 07:36:03
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