Typhoon 27 "Koto" occurs near the Philippines, the third typhoon this November

2025/11/26 00:14

At around 9:00 pm on the 25th (Tuesday), Typhoon No. 27 occurred in the Sulu Sea near the Philippines.

This is the third typhoon to occur in November this year, exceeding the 2.2 typhoons that occur in November in a normal year. Additionally, the number of typhoons that will occur this year in 2025 will exceed the average number of typhoons, which is 25.1.

#Typhoon No. 27 25th (Tuesday) 9:00 pm
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Center position Sulu Sea
Movement speed West-northwest 15km/h
Central pressure 998hPa
Maximum wind speed 18m/s (near the center)
Maximum instantaneous wind speed 25m/s
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Typhoon No. 27 is expected to advance westward in the South China Sea as it continues to intensify, and will be accompanied by a storm area by around 21:00 on the 27th.

This typhoon has no direct impact on areas near Japan.

3-month forecast: There will be many winter-like cold days, snow on the Sea of ??Japan side is expected to be on par with normal years, and the Pacific side will be sunny and dry

2025/11/25 21:05

On the 25th (Tuesday), the Japan Meteorological Agency announced the latest 3-month forecast, which shows the weather outlook for the next 3 months.



Since conditions will be close to La Nina during the first half of the period, sea surface temperatures will be higher than normal in the western equatorial Pacific Ocean, and convective activity will be active mainly near the Philippines. Near the international date line in the equatorial Pacific Ocean and in the tropical Indian Ocean, cumulonimbus clouds are expected to be rare and convective activity to be inactive.
For this reason, upper-level westerly winds tend to meander northward over the Eurasian continent and meander southward near Japan, similar to normal years. The continental Siberian High, which brings strong cold air, will have periods when its overhang to the southeast becomes somewhat stronger.

From the above, the northerly seasonal winds are strong as they head towards the Philippines, and eastern Japan, the Pacific side of western Japan, and Okinawa/Amami are unlikely to be affected by low pressure. The Sea of Japan side of northern Japan is likely to be more susceptible to the effects of low-pressure systems, and winter-like pressure patterns are not expected to last long. On the other hand, there is likely to be a period when winter-like pressure patterns become stronger mainly in western Japan and Okinawa/Amami.



The average temperature over the next three months is likely to be at or above normal in northern Japan. From eastern Japan to western Japan, as well as Okinawa and Amami, the weather is expected to remain close to normal, with many cold days typical of winter.



Northern Japan will be affected by low pressure at times, so precipitation is expected to be around normal. In the middle of the period, around January, the number of cases will tend to be higher than normal. As cold air from the upper atmosphere tends to flow into western Japan, snowfall amounts along the Sea of Japan are expected to remain at normal levels in various regions.

However, the areas closer to the Pacific Ocean tend to have clearer weather and less precipitation, and especially around December, from the Pacific side of eastern Japan to western Japan, and Okinawa/Amami, it will be less than normal. The air tends to be drier in areas closer to the Pacific Ocean. Please be careful about your physical condition and handling sources of fire.

Today, tomorrow, and 27th to 28th, yellow sand is flying in. A messenger of spring. Unseasonable yellow sand is coming from mainland China to Japan.

2025/11/25 16:43

Yellow dust blown up by strong winds from places such as the Gobi Desert is carried by winds in the sky from North China to Central China, and by 2 p.m., it has spread as far as South Korea.
Even in South Korea, there are many places where the visibility (the distance you can see in the horizontal direction) is 5 to 10 kilometers.



After the low pressure system passes near Japan today, the 25th (Tuesday), westerly winds will become stronger, and yellow sand will blow into Japan tomorrow, the 26th (Wednesday).
Yellow dust is expected over a wide area from the Nansei Islands to western Japan.
There is a possibility that it will fly to parts of Hokuriku in the early morning of tomorrow 26th (Wednesday), and to parts of the Tokai region from early morning to dawn of tomorrow 26th (Wednesday).



Visibility is expected to be less than 10 kilometers, mainly from the Nansei Islands to western Japan, and in some places visibility is expected to be less than 5 kilometers.
This may have an impact depending on the region, such as getting dirty cars and laundry.
Also, please be aware that if the visibility is less than 5 kilometers, there is a risk of traffic problems.
If you have hay fever or respiratory illnesses, your symptoms may worsen, so please take all possible precautions.

Also, from the 27th (Thursday) to the 28th (Friday), a low-pressure front accompanied by a front will develop in the Sea of Japan and move northeast toward the Sakhalin area.
After this low-pressure system passes near Japan, yellow dust is expected to spread widely from the Nansei Islands to Hokkaido from the afternoon of the 27th (Thursday) to the 28th (Friday).
Please be sure to check the information on Kosa frequently this week.



Kosa is most often observed in spring (March to May).
This is because there is nothing to cover the ground in spring, and dust tends to fly around.
The ground is covered with plants in the summer and fall, and with snow and ice in the winter, suppressing the occurrence of yellow dust. However, this year, there was little rain in the outbreak area and dry conditions continued, so strong winds caused by low pressure systems tend to blow up yellow dust, making it easy for yellow dust to fly even at this time of year.

[Typhoon No. 27 to occur] A new typhoon will occur near the Philippines by tonight

2025/11/25 11:52

As of 9 a.m. today, November 25th (Tuesday), there is a tropical cyclone developing near Panay Island in the Philippines,
moving west at 30 km/hr.

Sea surface temperatures near the Philippines continue to be higher than normal, and the
tropical cyclone is expected to develop into a typhoon by tonight.

The next typhoon will be called ``Typhoon No. 27,''
making it the third typhoon to occur this month. (Number of occurrences in November is 2.2)



It is expected to continue to develop and move toward the South China Sea, and the central pressure is expected to drop to 985 hPa at 9 a.m. on the 27th (Thursday),
with a storm area.

After that, it will continue westward and is expected to reach Vietnam around the 30th (Sunday).

Although there is no direct impact on Japan,
warm and humid air around the typhoon will flow into the Sakishima Islands of Okinawa,
Please note that there is a possibility of rain and thunderstorms around the 27th (Thursday).

Tohoku region: Atmospheric conditions are unstable; watch out for landslides into tomorrow evening

2025/11/25 07:35

There is a low pressure system in the western part of the Sea of Japan, and it is moving eastward. This low pressure system is accompanied by cold air in the upper atmosphere, and will continue to develop as it moves eastward across the Sea of Japan today, the 25th.
The low pressure system will move towards the Tohoku region and become unclear until tomorrow, the 26th (Wednesday), but cold air with temperatures below -27c is expected to flow into the Tohoku region at an altitude of around 5,500m.
Atmospheric conditions will be extremely unstable in the Tohoku region due to the effects of warm, humid air flowing toward the low pressure system and cold air in the upper atmosphere.

As a result, cumulonimbus clouds are expected to develop in the Tohoku region, causing thunderstorms in some places. In the northern part of Tohoku on the Sea of Japan side, there are places where the ground has become loose due to previous rains, increasing the risk of landslides even with light rain, and there is a possibility of warning-level heavy rain.

Please be careful of landslides caused by heavy rain from the afternoon of today, the 25th, to the evening of tomorrow, the 26th (Wednesday).
In addition, in the Tohoku region, it is necessary to be careful of severe gusts such as tornadoes, lightning strikes, damage to crops and agricultural facilities due to hail, and sudden heavy rain until the evening of tomorrow, the 26th.



#Forecasted amount of rain (in areas where there is a lot of it)
+1-hour precipitation expected from today 25th to tomorrow 26th (Wednesday)
Tohoku Sea of Japan side northern part 20mm
+24-hour precipitation expected by tomorrow 26th (Wednesday) dawn
Tohoku Japan Sea side northern part 60mm

The weather for today, the 25th (Tuesday): Bring rain gear and watch out for thunderstorms, especially on the Sea of ??Japan side.

2025/11/25 06:11

Today, the 25th (Tuesday), after the holidays, low pressure is expected to move through the Sea of Japan and the Pacific Ocean. Rain gear will be widely used, especially in western and eastern Japan. At this time of year, strong cold air flows in, so you need to be careful of thunderstorms, especially on the Sea of Japan side.



Although there are many places in Hokkaido that are sunny in the morning, the sky tends to become cloudy in the afternoon. On the Sea of Japan side, there are places where it starts to rain after the evening, so please prepare rain gear in time for your return.

The weather is downhill in Tohoku and Hokuriku. As a low-pressure system approaches, rain will begin in the evening, with heavy rain expected at night. Please bring a large umbrella when going out.

The Kanto and Tokai regions are likely to experience rainy weather around noon. The temperature will not rise, and daytime temperatures are likely to be similar to early to mid-December. Please be sure to protect yourself from the cold.

Western Japan has many places with rain since the morning, and there is a risk that the rain will locally become stronger and lead to thunderstorms. Be wary of lightning, tornadoes, strong wind gusts, hail, and sudden heavy rain. In addition, yellow dust is expected to fly from western Japan to the Nansei Islands, so please pay attention to traffic information.

From the 25th to the 26th, yellow dust is expected over a wide area from western Japan to the Nansei Islands!

2025/11/24 12:33

### Weather Overview
Yellow sand has been observed in mainland China.
On the 25th, the atmospheric pressure is expected to be high in the west and low in the east, and the northwest monsoon wind is expected to strengthen from western Japan to the Nansei Islands.
Riding this northwest wind,
yellow sand is expected over a wide area from western Japan to the Nansei Islands from around dawn on the 25th to around dawn on the 26th.
Visibility will be less than 10 kilometers, and in some places visibility may be less than 5 kilometers.





###Disaster prevention matters
Outdoors is expected to be affected by yellow sand in some places.
Also, please be aware that if the visibility is less than 5 kilometers, there is a risk of traffic disruption.


* Additional information
Visibility is the distance that can be seen in the horizontal direction.

Today, the 24th (Monday), it is cloudy and rainy on the Sea of ??Japan side. Tomorrow, the 25th (Tuesday), it will rain nationwide and the atmosphere will be unstable.

2025/11/24 06:58

There is a high pressure system over the sea east of Japan and the sea south of Shikoku that is moving eastward.
On the other hand, there is a low pressure system near the Korean Peninsula, which is moving east-southeast.




Today, under the influence of a pressure trough and humid air, clouds are expected to spread from northern Japan to western Japan on the
Sea of Japan side, with some showers expected, and thunderstorms in some places in Tohoku and Hokuriku.
Also, on the Pacific side, it will be sunny at first, but clouds are expected to gradually spread in the afternoon.



Tomorrow, the 25th (Tuesday), a low pressure system will develop near the Korean Peninsula and move east across the Sea of Japan. In addition, another low-pressure system is expected to form on the Pacific side of western Japan and develop into the night, accompanied by the
front, as it moves from the Pacific side of eastern Japan to the coast of Sanriku.
Furthermore, cold air, which is strong for this time of year, is expected to flow from the 25th to the 26th from northern Japan to western Japan.



Atmospheric conditions are expected to become extremely unstable in some places from the 25th to the 26th tomorrow, mainly from the Sea of Japan side of northern Japan to western Japan, due to the influence of warm, humid air heading toward low pressure and pressure troughs, and cold air in the upper atmosphere.

Please be careful of lightning strikes, tornadoes, strong gusts of wind, sudden heavy rain, hail, etc.

Tomorrow, the 24th (Sunday), the last day of the holidays, the weather will be downhill. On the 25th (Tuesday), the weather will deteriorate across the country.

2025/11/23 18:37

There is a high pressure system over the East Sea of Japan and the East China Sea that is moving eastward.
On the other hand, there is a low pressure system in northeastern China, and a trough of pressure near the Korean Peninsula.
Also, there is a trough of weak atmospheric pressure near the Kanto region.

Today, the second day of the three-day holiday, there were many clouds and rain in some areas from Kanto, western Hokkaido to northern Tohoku, but many other areas were sunny and perfect for sightseeing.





Tomorrow, the 24th (Monday), it will be sunny in many places on the Pacific coast from southern Tohoku to Okinawa during the day.
However, a pressure trough approaches from the west, and the weather is going downhill.
On the Sea of Japan side from Hokkaido to Kyushu, clouds will spread more easily and there will be some rain.

The highest temperature can reach around 20 degrees Celsius in some places in western and eastern Japan, and it is sunny from late October to early November.The daytime is comfortable, but there are many places where the temperature difference between morning and evening is large, so please wear clothes that can be adjusted.



On the 25th (Tuesday) after the holidays, a low pressure system is expected to move eastward through the Sea of Japan and the southern coast of Honshu, developing over the Sea of Japan and the southern coast of Honshu.
The weather is expected to deteriorate across a wide area of the country, with heavy rain accompanied by localized thunderstorms expected in areas near low-pressure systems.
Also, please be careful as the wind can be strong in some places.

Weather for the week: Widespread rain after the holidays - Beware of rough weather in northern Japan

2025/11/23 07:54

From the 25th (Tuesday) onwards, after the three-day holiday, low pressure and high pressure will alternate around Honshu, and the weather will change in short cycles. In northern Japan, there are likely to be days when the weather is stormy.



Tomorrow, the 24th (Monday), the last day of the three-day holiday, will be covered by high pressure mainly from the Pacific side of western to eastern Japan, and sunlight will reach the area. However, from Tohoku to northern Kyushu on the Sea of Japan side, clouds tend to spread due to the effect of a trough in the atmospheric pressure, and there are likely to be some areas with showers.



On the 25th (Tuesday), the end of the holidays, a low pressure system is expected to develop as it moves through the Sea of Japan. In addition, another low pressure system will form near the southern coast of Honshu and will continue to develop. As a result, it will rain over a wide area around Honshu on the 25th (Tuesday).
The two low pressure systems will merge into one over the sea east of Japan on the 26th (Wednesday), and the pressure around Honshu will be high in the west and low in the east. Northerly winds will become stronger in Hokuriku, on the Sea of Japan side of northern Japan, and northern Japan is likely to experience rough weather. In Hokkaido, there will be places where it snows, mainly in northern Hokkaido. On the other hand, in western Japan, where high pressure is overhanging, many areas are expected to be sunny.

A low pressure system will pass near the Sea of Japan from the 27th to the 28th. On the 27th (Thursday), there will be fewer places where it will rain, but on the 28th (Friday), the weather will deteriorate, mainly on the Sea of Japan side, and it will likely rain in many places.

From now on, daytime temperatures are expected to remain at or slightly higher than normal in many places, and the cold weather will ease for a while. However, the temperature difference between morning and afternoon tends to be large, so please take care of your health.