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New Year’s Cold Waves Summary Record of heavy snowfall and instantaneous maximum wind speed of more than 30 meters
Due to the influence of the end of the year cold snap, the end of the year and the New Year turned into a winter storm. We look back at heavy snowfall and strong winds centered on the Sea of Japan side from the data.
Record heavy snowfall
A cold snap hit on December 30, 2020, causing heavy snowfall mainly on the Sea of Japan side. The 48-hour snowfall was 94 cm in Yokote City, Akita Prefecture (until 12:00 on January 1) and 89 cm in Yuzawa City (until 12:00 on January 1), which was the highest in the history of the observation. Also, Senya in Shinmi City, Okayama Prefecture was 63 cm (as of 6:00 p.m. on January 1), which was the highest value recorded in January in 2017.
The figure above shows the average snowfall at 2:00 pm on January 4, 2021. There are many places where the number is more than normal, especially on the Sea of Japan side, especially from Tohoku to Sanin, which is more twice normal. Snowfall at 2:00 pm was 267 cm in Hijiori, Okura Village, Yamagata Prefecture. Although it is an area of heavy snowfall, it has more than double the amount of snow in normal years. Yokote City in Akita Prefecture is 177 cm and Yuzawa City is 158 cm, which is about five times longer than normal.
Winter storm
The maximum instantaneous wind speed on December 30 was 32.5 meters in Tango, Kyotango city, Kyoto prefecture, and 32.3 meters in Uchinoura, Kagoshima prefecture, where the wind was blowing so much that it could not be on foot unless I grab onto something. Also, there was a place that broke the number one record in January, such as observing the instantaneous maximum wind speed of 29.3 meters in Okayama City.
Is it a cold snap again?
Even stronger cold air is expected to enter around January 7. There will be a lot of snow mainly on the Sea of Japan side, and it will also be very cold on the Pacific side. You need to pay attention to the latest weather and traffic information in the future.
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