Pay attention to the trends of the south coast low pressure on the first day of the 3-day holiday Possibility of cold rain and snow in Kanto Koshin Severe cold (Weather forecaster Tomomi Yoshida January 03, 2023)-Japan Weather Association tenki.jp

The cyclone that advances over the sea south of Japan is called the “nangan cyclone” in the sense that it passes through the southern coastal area.

The influence of the weather on the Kanto region depends not only on whether the south coast cyclone develops, but also on its distance from the land. Depending on whether the south coast cyclone follows a course relatively close to the land or a course far away, it will be snow, rain, or nothing.

Specifically, if the south coast cyclone is heading north, it will bring precipitation areas and warm air to the Kanto region, so what will fall is likely to be rain. And cold air is pulled in from the north along with the precipitation area, so what falls in the Kanto area tends to be snow, and sometimes it snows heavily. On the other hand, if the south coast cyclone moves further south, there will be many clouds in the Kanto region, but the precipitation area itself will not cover it, and in many cases nothing will fall.
If a “southern cyclone” is expected, pay particular attention to its course, but whether it will snow in the Kanto region depends on the speed at which the cyclone advances, the temperature drop, and the influx of moist air. If it snows in the Kanto region, transportation may be affected, soWeather informationand traffic information.

In addition, this time there is a low pressure system not only on the south coast, but also in the Sea of ​​Japan, so there is a range of forecasts. Please check back frequently for the latest information.