1-month forecast Winter-type pressure distribution around Christmas Is heavy snow due to cold winter air? (Daily Forecast December 10, 2020) – Japan Meteorological Association tenki.jp

12/10/2020 Japan

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1-month forecast Winter-type pressure distribution around Christmas Is it heavy snowfall due to cold mid-winter air?

From the 14th to the 16th, the strongest cold air is expected to flow this season. The Japanese archipelago is in full swing in winter. According to the month-long forecast released by the Meteorological Agency on the 10th, cold air is expected to easily enter around Christmas.

The Japanese archipelago is prone to cold air flow during winter on a large scale and around Christmas.

According to the month-long forecast released by the Meteorological Agency on the 10th, the west wind is expected to meander south near Japan around December 25. For this reason, cold air will easily enter. There is the possibility of heavy snowfall, especially on the Sea of Japan side of Hokkaido and Tohoku, and Hokuriku. It will continue to be cold throughout the country. It seems to be winter even from the end of the year to the beginning of the year, and the cold clouds that occur in the Sea of Japan are expected to flow easily towards Hokkaido and Honshu. There are many sunny days in the Pacific region and the air will be dry. Take care when handling the source of the fire. I think it’s good to consider room humidification as a measure against infectious diseases.

1st week (December 12 to December 18)

In the first week (December 12 to December 18), there will be a winter-type pressure distribution around Japan. From the 14th to the 16th, the strongest cold air is expected to flow this season. Due to the cold mid-winter air, the weather will be harsh mainly on the Sea of Japan side of Hokkaido and Tohoku, and Hokuriku, and there is the possibility of heavy snowfall. There will be places where it will snow in western Japan, such as Kinki, where the first snow has not yet been observed. In the shadow of the mountains, there is a chance that it will snow even on flat ground. Traffic may be affected by snow accumulation and freezing of the road surface, making it necessary to prepare for snow.

The temperature will be lower than normal in Hokkaido and Tohoku, and normal or lower in Hokuriku, Kanto and Tokai. Kinki to Kyushu is expected to be shorter than normal. Even in northern Kyushu, there will be days when the maximum temperature does not reach 10 ° C. Okinawa / Amami is expected to be near normal.
It is suddenly cold throughout the country. Be careful not to get sick.

2nd week (December 19-December 25)

In the second week (December 19 to December 25), the area around Japan has a winter-like pressure distribution and cold air continues to enter easily. On the Sea of Japan side of Hokkaido and Tohoku, and Hokuriku, there will be more cloudy, snowy or rainy days than in normal years. From Kinki to the side of the Sea of Japan in Kyushu, it is expected that there will be more cloudy, snowy or rainy days than in normal years. From Hokkaido to the Pacific side of Kyushu, there will be many sunny days as in normal years. In Okinawa / Amami, it is expected that there will be more cloudy and rainy days than in normal years.

The temperature will be lower than normal in Hokkaido and Tohoku, and normal or lower in Hokuriku and Kanto to Kyushu. Okinawa / Amami is expected to be near normal.

Week 3 to 4 (December 26 to January 8)

During the third and fourth weeks (December 26 to January 8), there may be a winter-like pressure distribution as in normal years. During the New Years and New Years holidays, there are expected to be many cloudy, snowy or rainy days from Hokkaido to the side of the Sea of Japan in Kyushu, as in normal years. There will be many sunny days on the Pacific side. Okinawa / Amami is expected to have many cloudy and rainy days.

The temperature is expected to be near normal across the country.

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