Morning rain After rain, cold air intake Is cold air intake similar to mid-winter over Hokkaido on Sunday (Nov 1, 2020)? – Japan Meteorological Association tenki.jp

The cold front passes from Monday 2 to Tuesday 3 in the morning After passing the front, cold air intake

On the 2nd (Monday), humid air will flow into the vicinity of Honshu around the edge of the high pressure centered on the eastern tip of Japan. The cold front is expected to cross the Japanese archipelago until the morning of the 3rd (Tuesday).
It’s going to be cloudy and rainy from Kyushu to Hokkaido. When the front passes, the rain legs get stronger. You may hear a kaminari mainly on the Tohoku Sea of ​​Japan side.

After passing the front line, the cold air gradually flows out. On day 3 (Tuesday), there are many places where the rain stops once, but the west or north wind becomes stronger, and in the afternoon the rain clouds are expected to fall mainly on the Sea of Japan from Hokkaido and Tohoku, and Hokuriku. At high altitudes, it will snow. In Hokkaido, there are likely to be places where snow turns to snow even on flat terrain at night.

4th (Wednesday) To cold snow peak in Hokkaido and North Tohoku

The cold air intake peak is Wednesday the 4th. Cold air below -6 ° C will flow towards the northern part of Tohoku about 1500 meters above the sky. It is the cold air that is used as a guide for snow on flat ground. In Hokkaido and North Tohoku, there are many places where it snows and there will be places where it will accumulate. Even in areas where people are used to snow, snow at the beginning of the season is prone to accidents when driving a car. Be sure to put on your snowy road tires before it snows. Not only the snow, but also the west wind is expected to blow strongly.
Even in the Kanto Koshinetsu Mountains, there will be places where it will snow and accumulate from the night of Tuesday the 3rd to the morning of the 4th Wednesday. The cars that go over the pass are snow tires and require more careful driving than usual.

There are many sunny places on day 5 (Thursday) Cloudy or rainy rain clouds from day 6 (Friday) to 7 (Saturday)

On the 5th (Thursday), the area around Honshu will be covered with mobile high pressure and there will be many sunny spots. On Friday the 6th, the high pressure will move to eastern Japan, and warm and humid air is expected to flow from the south near Honshu. There will be more cloudy and rainy places, and there is a possibility that the developed rain clouds will fall from Kyushu to Kanto on Saturday 7. Please check the latest weather information. By the way, even after this rain, cold air will enter.

Snow cloud development in Hokkaido and North Tohoku again on 8 (Sunday)

On the 8th (Sunday), low pressure is expected to develop in the sea near Chishima. According to the current forecast, the cold air intake will be focused on northern Japan and will be as strong or as strong as the cold air expected for Wednesday 4th. In Hokkaido and northern Tohoku, the west wind is expected or north increase again and snow is expected. There will be places where it will accumulate. Additionally, cold air below minus 33 ° C can temporarily flow about 5,500 meters above Hokkaido. It is as cold as in the middle of winter. In such a case, snow clouds may form even on flat ground. It’s a good idea to check the latest weather information and be prepared for large-scale snow.