Transitioning to Cooler Days: Snowfall in Hokkaido’s Mountains and Mountain Passes – Japan Weather Update

2023-10-01 09:03:21

The season is moving towards an exit from the harsh lingering heat, with chilly days in the mornings and evenings, and cold air moving south. Snow in the mountains and mountain passes of Hokkaido (weather forecaster Tomomi Yoshida October 1, 2023) – Japan Weather Association tenki.jp

The season is moving towards an exit from the harsh lingering heat, and the days are chilly in the mornings and evenings.The cold air is moving south, and snow is falling in the mountains and mountain passes of Hokkaido.

October 01, 2023 18:03

This year, the harsh summer heat has dragged on for a long time, but the season finally seems to be moving forward. From now on, the heat during the day will subside, and the mornings and evenings may become chilly. Cold air is moving in, and snow may fall in some places in Hokkaido’s mountains and mountain passes. It looks like we’ll receive news of the delayed first snowfall.

The severe summer heat will subside

The above figure shows the average temperature for 30 days from September 1st to September 30th compared to normal. It is widely displayed in red from Hokkaido to Kyushu, indicating that it was higher than normal. Compared to normal years, the temperature was 2.9℃ higher in Sapporo, 4.0℃ in Sendai, 3.4℃ in central Tokyo, 2.7℃ in Osaka, and 2.2℃ in Fukuoka.

It has been an unusually hot summer, but it looks like the heat is finally coming to an end. From now on, until around the 5th (Thursday), the maximum temperature will be higher than normal in some places, but there will be few places from Kanto to Kyushu where it will exceed 30℃. The minimum temperature will be below 20 degrees Celsius, and long sleeves will be just right in the mornings and evenings. From the 6th (Friday) onwards, cold air will enter Hokkaido, and the temperature will be around 15℃ during the day, making it quite cool. It looks like it’s going to be cold in the mornings and evenings. The minimum temperature will drop to around 15℃ in the Tohoku, Kanto and Kinki regions, and you will need a jacket in the morning and evening.

Cold air moving south, snow likely in Hokkaido’s mountains and mountain passes

A low pressure system will move north of Hokkaido from the 4th (Wednesday) to the 5th (Thursday), and a front extending from the low pressure system will pass through northern Japan. A low pressure system is expected to develop east of Hokkaido from the 6th (Friday) to the 7th (Saturday), and the atmospheric pressure is expected to be temporarily high in the west and low in the east.

Cold air will gradually flow into northern Japan from the night of the 5th (Thursday). Around the 7th (Saturday), cold air with temperatures below 0 degrees Celsius will enter Hokkaido at an altitude of around 1,500 meters, and it is likely to snow in some places in the mountains and mountain passes. When driving over a mountain pass, please be aware of changes in road conditions. News of the first snowfall may arrive from the mountains of Hokkaido.

This year, we have yet to receive any news of the first snowfall anywhere in the country. This is the first time in 19 years since 2004 that the first snow in the country has been delayed until October.

Okinawa’s Sakishima Islands are at risk of stormy weather due to Typhoon No. 14

On the other hand, summer still prevails over the southern seas. Typhoon No. 14 is in the east of the Philippines.

Typhoon No. 14 will continue to develop in the east of the Philippines and move northwest, becoming a very strong force and approaching the Sakishima Islands such as Ishigaki Island and Miyako Island in Okinawa from around the 3rd (Tuesday) to the 5th (Thursday). There is a risk that

The waters off the coast of the Sakishima Islands will be accompanied by swells, which will gradually become cloudy on the 2nd (Monday) and then become heavy on the 3rd (Tuesday). There will also be swells in the waters off the coasts of Okinawa’s main island and Daitojima regions, and it is expected to start on the 3rd (Tuesday). Please be careful of high waves accompanied by swells. In addition, the wind is gradually increasing in the Sakishima Islands, with extremely strong winds blowing on the 3rd (Tuesday), and depending on the typhoon’s path, there is a risk of strong winds on the 4th (Wednesday). There is a risk of a warning-level storm surge, so pay attention to the latest typhoon information.

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