Temperatures are near normal in many places today, with unseasonably warm temperatures in the second half of the week

2025/12/16 06:42

Today, we will be covered in high pressure, so many places from eastern to western Japan will receive sunlight, and temperatures across the country will be typical of this time of year.

The predicted maximum temperature is Sapporo 3c, Sendai 9c, Tokyo 13c, Nagoya 12c, Kanazawa 12c, Osaka 13c, Kochi 15c, and Fukuoka 13c. In sunny areas, you can feel the warmth of the sunlight.



From now on, it will be easy to be covered by warm air from the south, and it is expected to be unseasonably warm nationwide.
Looking at the predicted maximum temperature, the temperature will gradually rise over the weekend in various places, and on the 20th (Saturday), Sapporo is expected to be 12 degrees Celsius, which is expected to be as warm as early November. What will fall is expected to fall as rain rather than snow in many places, and there is a risk that the snow will melt rapidly in areas with heavy snowfall. Please be careful of snow falling from the roof and deteriorating road conditions.

In many places from eastern Japan to western Japan, the temperature will be similar to November, so it will be unbelievably warm for December. The temperature will vary greatly throughout the day, so please be careful not to get sick.

Weather for today, the 16th (Tuesday): Rain in Tohoku and Hokuriku; sunny and calm from Kanto to the west

2025/12/16 06:21

Today, the 16th (Tuesday), the area around Japan is expected to be covered in high pressure, and the winter-like pressure pattern is expected to gradually loosen. The Pacific Ocean side receives sunshine, but the Sea of Japan side is cloudy and there will be some places where it will rain.



In Hokkaido, there are places with snow mainly on the Sea of Japan side, and strong winds will continue. Although there is no risk of the blizzard from yesterday, we still need to be careful about poor visibility due to the blizzard. It will be sunny and blue skies on the Pacific side.

The Sea of Japan side of Tohoku and the Hokuriku region are expected to experience rain from around noon, with localized thunderstorms expected. Be careful of lightning strikes and gusts of wind. When going out, please bring rain gear even if it is not raining.

On the other hand, it will be sunny from Kanto to the west, mainly on the Pacific side. The wind is weak, and it looks like it's going to be a calm and sunny day.
There are probably places on the Sea of Japan side of western Japan that receive sunlight during the day. However, there is a possibility of showers at night, so if you are returning late, it is a good idea to bring a foldable umbrella.

Sudden development of low pressure system Rapid increase in snowfall in Hokkaido Maximum instantaneous wind speed exceeds 40m/s Heavy blizzard and storm Warning of strong winds, blizzard, and high waves in northern Japan and Hokuriku tomorrow

2025/12/15 11:24

From the night of yesterday, the 14th (Sunday) to today, the 15th (Monday), a low pressure system accompanied by a front is rapidly developing near Hokkaido and moving north-northeast.
There are places around this low pressure system, mainly in northern Japan, where extremely strong winds are blowing and heavy snow is falling.



#Over 60cm of snowfall in just half a day in Hokkaido
As of 10am, the maximum daily snowfall in 12 hours was 67cm at Taiki in Taiki-cho, Hokkaido and Shirataki in Engaru-cho, Hokkaido, and 61cm at Kami-Satsunai in Nakasatsunai-mura, Hokkaido and Rubeshibe in Kitami-shi, Hokkaido, both of which updated the highest values for December until last winter.
The snowfall is rapidly increasing in just half a day, mainly in Hokkaido.

#Maximum instantaneous wind speed exceeds 40m/s in Hokkaido, ranking first in observation history
The maximum instantaneous wind speed of the day as of 10 a.m. was 40.5m/s at the upper marker in Nakashibetsu Town, Hokkaido, which is the highest in observation history.
There were places in Hokkaido where the maximum instantaneous wind speed exceeded 30m/s, at 35.6m/s in Nosappu and 33.7m/s in Nemuro, Hokkaido.
There are some places where there is a whiteout due to the blizzard.
There are also places where stormy winds are blowing and snowdrifts are forming.



#Warnings have been issued for northern Japan and Hokuriku
As of 10:45 a.m., there are places where storm warnings have been issued, storm warnings have been issued for northern Japan, blizzard warnings and heavy snow warnings have been issued for Hokkaido, wave warnings have been issued for northern Japan and Hokuriku, and storm surge warnings have been issued for the Nemuro region of Hokkaido.

#Northern Japan and Hokuriku: Warning of strong winds, blizzards, and high waves tomorrow.
The low pressure system is expected to move towards the waters near the Chishima Islands today, the 15th (Monday).
Due to the rapidly developing low pressure system, heavy rain is expected to occur in northern Japan and the Hokuriku region, mainly in the morning of today, the 15th (Monday). In northern Japan and Hokuriku, please be on guard against strong winds, blizzards and high waves until tomorrow the 16th (Tuesday).
In addition, in Hokkaido, today, the 15th (Monday), please be on guard against traffic disruptions due to heavy snow and be extremely cautious of high tides.



In northern and eastern Japan, extremely strong winds will blow today, the 15th (Monday), and there will be heavy snow in some places in northern Japan.
The maximum instantaneous wind speed expected today, the 15th (Monday), is 35 m/s in Hokkaido and Tohoku, and 30 m/s in Hokuriku.
In northern Japan and Hokuriku, there will be heavy waves in some places until tomorrow the 16th (Tuesday).
The expected wave height for today, the 15th (Monday) is 7m in Hokkaido and 6m in Tohoku and Hokuriku.
The expected wave height for tomorrow, the 16th (Tuesday), is 6m in Hokkaido.



The peak of the heavy snow will gradually pass over the mountain pass.
In eastern Hokkaido, new snowfall is expected starting today, the morning of the 15th (Monday).
Please be careful of the sudden increase in snowfall in a short period of time.

In northern Japan and Hokuriku, be careful of strong winds, blizzards, and high waves.
In Hokkaido, be careful of traffic disruptions caused by heavy snow, and be careful of avalanches and snow accumulation.
Also, in Hokkaido, be extremely careful of storm surges.