[Double typhoon to occur] Will Typhoon No. 26 occur What will be the impact on Japan Pay attention to future trends Typhoon No. 25 becomes very strong

2025/11/05 11:34

#Typhoon No. 25 becomes extremely strong
As of 9 a.m. today, Wednesday, the 5th, strong Typhoon No. 25 (Karmaegi) is moving west-northwest in the South China Sea, accompanied by a stormy area.
It is expected to further strengthen its strength as it moves westwards, and will become a very strong force in the South China Sea by 9:00 a.m. on the 6th (Thursday) tomorrow.
There is a risk that it will approach and land in Laos from Vietnam on the 7th (Friday) tomorrow.
At 9am on Saturday the 8th, it will become a tropical cyclone in Thailand.



[Typhoon No. 25] November 5th (Wednesday) 9:00 am
Area of existence: South China Sea
Intensity class: Strong
Movement: West-northwest: 20 km/h
Central pressure: 970 hPa
Maximum wind speed: 35 m/s (near the center)
Maximum instantaneous wind speed: 50 m/s

Although there is no impact on Japan, those planning to travel to Vietnam, Laos, or Thailand should keep an eye on the latest information.

#Is Typhoon No. 26 occurring What will be the impact on Japan Pay attention to future trends
As of 9 a.m. today, Wednesday, the 5th, the Japan Meteorological Agency has announced that the tropical cyclone currently developing in the Caroline Islands is ``expected to develop into a typhoon within 24 hours.''
If it develops into a typhoon as predicted, it will be called "Typhoon No. 26."

[Tropical cyclone] November 5th (Wednesday) 9:00 am
Area of existence: Caroline Islands
Movement: West-southwest slowly
Central pressure: 1002 hPa
Maximum wind speed: 15 m/s (near the center)
Maximum instantaneous wind speed: 23 m/s

This tropical cyclone, which formed at 9:00 pm on the 3rd (Monday) yesterday, is likely to strengthen in the Caroline Islands and develop into a typhoon.
After that, it will reach the Mariana Islands at 9:00 a.m. on the 6th (Thursday), and from the 7th (Friday) to the 10th (Monday) the next day, it will move east of the Philippines to the west.
It is expected to develop into a very strong force from the 9th (Sunday) to the 10th (Monday).
The subsequent course is still uncertain, but there is a fear that it will move westward near Luzon Island in the Philippines and head toward the South China Sea, or that it will turn north after heading south of Okinawa and move eastward from south to east of Japan.
Depending on the typhoon's path, there are concerns that it may have an impact on Japan, so it is necessary to pay close attention to the future trends of the typhoon.

A rapidly developing low pressure system passes near Honshu; the highest instantaneous wind speed in the history of observation was observed at Cape Erimo, Hokkaido (weather summary October 26, 2025 - November 1, 2025)

2025/11/05 08:28

This is a summary of the weather for this period (October 26th to November 1st, 2025).

#Summary of the weather for this period (October 26th to November 1st)
The average temperature was in many places near normal due to periodic weather changes. In Hokkaido, as strong cold air moved south, average temperatures were below normal in Sapporo, Asahikawa, and other areas, and below normal in Matsue, where there were many cloudy and rainy days. Okinawa is susceptible to the effects of warm air, with average temperatures in Naha exceeding normal.

Precipitation tends to be higher in northern and eastern Japan due to the influence of low pressure systems and fronts. On the Sea of Okhotsk side and Pacific Ocean side of Hokkaido, and on the Pacific side of Tohoku. Heavy rain was caused by a rapidly developing low pressure system, and precipitation far exceeded normal levels. Nagano also recorded nearly six times the amount of precipitation compared to normal.

Sunshine hours tended to be below normal in all regions except Shikoku and Kyushu due to a series of cloudy and rainy days affected by low pressure and fronts. In Hokkaido, there was a tendency for the amount of sunshine to be much lower than normal due to the effects of winter-like pressure patterns and a rapidly developing low pressure system, and even in Okinawa, which had been susceptible to the effects of the autumn rain front, the amount of sunshine was below normal.



#Characteristics of pressure distribution
On the 26th, a low pressure system in the Sea of Japan moved northeast, and a low pressure system off the coast of Sanriku moved northeast accompanied by a front. In the south of Japan, a low pressure system above the autumn rain front is moving east-northeast. On the 27th, a low pressure system near Sakhalin and two low pressure systems accompanied by a front moved northward, and the pressure pattern around Honshu gradually formed with high pressure in the west and low pressure in the east. The low-pressure system near Sakhalin moved northeast over the Sea of Okhotsk and rapidly developed over the 28th, with strong cold air below -30 C moving south over Hokkaido at an altitude of approximately 5,500 meters. On the 29th, the area around Honshu was covered with a mobile anticyclone, and the high pressure system in the west and low pressure in the east gradually resolved. In the south of Japan, the autumn rain front has stalled. On the 30th, the mobile high pressure system gradually moved away from the sea east of Japan, and a front accompanying the low pressure system moving over the continent approached Hokkaido through the night. On the 31st, a cold front passed through Hokkaido. Two low-pressure systems formed on a front from the East China Sea to the south of Honshu, and in the evening they merged into one and moved northeast along the southern coast of Honshu. The low-pressure system rapidly developed over the course of the day as it passed over Honshu and reached the waters near the Chishima Islands.

#Precipitation
On the 26th, it rained over a wide area from Hokkaido to Kyushu on the Sea of Japan side due to the effects of a low pressure system and front. Due to the influence of the autumn rain front, extremely heavy rain of 66.0 mm/h occurred in Nakasuji, Tarama Village, Miyako District, Okinawa Prefecture. On the 27th, the atmospheric pressure gradually became winter-like, with rain falling from the Sea of Japan side of northern Japan to Hokuriku. On the 28th, it snowed in Hokkaido due to strong cold air in the sky, and 23 cm of snow was observed in Sounkyo, Kamikawa-cho into the night. The first snowfall was observed in Obihiro, Muroran, and Hakodate. On the 29th, as the cold air in the sky moved southward, the first snowfall was observed on high altitude mountains in northern and eastern Japan, including Mt. Zao, the Toho Mountain Range, and Mt. Hakusan. On Hahajima in the Ogasawara Islands, heavy rain of 31.5 mm/h was caused by the autumn rain front. On the 30th, heavy rain fell in the Ogasawara Islands due to the influence of the autumn rain front. In Hokkaido, it rained late at night as a cold front approached. On the 31st, rain fell across western Japan, eastern Japan, and Tohoku due to the influence of a low pressure system moving along the southern coast of Honshu. On the 1st, a low pressure system rapidly developed, and heavy rain of 86.5 mm/h was observed in Tomioka Town, Fukushima Prefecture in the early hours of the morning. Hokkaido experienced extremely stormy weather, with a maximum instantaneous wind speed of 49.1 m/s observed at Cape Erimo, the highest ever recorded.

#Temperature
On the 26th, the temperature did not rise much on the Japan Sea side from Hokkaido to northern Kyushu due to rain. The highest temperature in Sendai was 15.6c in early November, and in Tokyo it was 16.1c, about the same as mid-November. On the 27th, due to the influence of warm air in the upper atmosphere, many places in western and eastern Japan had temperatures over 20c, and it was a summer day in the Kanto and Tokai regions, such as Kumagaya (25.0c) and Shizuoka (26.1c). On the 28th, temperatures dropped mainly in northern Japan due to a winter-like atmospheric pressure pattern. In Hokkaido, winter days were observed at 43 locations, including Rubeshibe, Kitami City (-5.7c). On the 29th, temperatures rose in Hokkaido as the weather improved. The highest temperature in Sapporo was 10.5c, 3.8c higher than the previous day. On the 30th, it was extremely cold in the morning due to radiation cooling during the night, and in Rikubetsu Town, Hokkaido, the temperature was -7.5c, the lowest temperature in Japan this season. The morning minimum temperature in central Tokyo is 9.7c. On the 31st, it was a chilly day in western Japan due to rain. The highest temperature in Osaka was 17.1c, observed around 2am. On the 1st, temperatures rose in western and eastern Japan, where the weather had improved. The maximum temperature in Osaka was 20.9 degrees Celsius, and in central Tokyo it was 21.7 degrees Celsius, an increase of nearly 4 degrees Celsius from the previous day.

Tropical cyclone in the Caroline Islands expected to become a typhoon and develop into a very strong force

2025/11/05 08:03

As of 6 a.m. today, the 5th (Wednesday), the powerful Typhoon No. 25 is moving west-northwest in the South China Sea, accompanied by strong winds.

#Typhoon No. 25 5th (Wednesday) 6:00 a.m.
===================
Strength Strong
Center location South China Sea
Movement speed W-NW2 0km/h
Central pressure 970hPa
Maximum wind speed 35m/s (near the center)
Maximum instantaneous wind speed 50m/s
==================



Typhoon No. 25 is expected to continue moving westward and become a very strong force in the South China Sea by around 6 a.m. on the 6th. It will make landfall near Vietnam around the 7th, and will turn into a tropical cyclone over Thailand by the 8th. There is no direct impact on areas near Japan.


As of 6 a.m. today, the 5th, the tropical cyclone is almost stationary near the Caroline Islands. As of 7 a.m. today, the 5th, it has not yet become a typhoon, but it is expected to become a typhoon within the next 24 hours.

#Tropical cyclone 5th (Wed) As of 6:00 am
==================
Strength -
Center location Near the Caroline Islands
Moving speed Hoto Stagnant
Central pressure 1002 hPa
Maximum wind speed 15 m/s (near the center)
Maximum instantaneous wind speed 23 m/s
==================



Looking at the future course of the tropical cyclone, it is expected to advance west-northwest as it develops, and will be accompanied by a storm area by the 7th. It is expected to move east of the Philippines by the 10th, becoming an extremely strong typhoon with a central pressure of 940 hPa, maximum wind speed near the center of 45 m/s, and maximum instantaneous wind speed of 65 m/s.

There is currently a great deal of uncertainty regarding my future path. Some predict that it will continue its course westward, passing through the South China Sea, while others predict that it will continue northward, approaching Okinawa, and then turn eastward. If the typhoon moves northward and then turns eastward, there is a good chance that areas near Honshu will be affected.



Ferocious winds will blow in the Nansei Islands from the 10th onwards, depending on the path of the typhoon, and there is a risk that waves at sea may be over 9 meters high, resulting in severe flooding. Please pay attention to the latest typhoon information that will be updated in the future.

[Double typhoon to occur] Typhoon No. 25 becomes very strong, typhoon egg hits the Caroline Islands. Pay attention to future trends

2025/11/04 12:54

As of 9 a.m. today, the 4th (Tuesday), strong typhoon No. 25 (Karmaegi) is moving westward across the Philippines with strong winds.



#Typhoon No. 25 Becomes a very strong force
From now on, it is expected to further strengthen its strength as it moves westward and become a very strong force in the South China Sea by 9:00 a.m. on the 6th (Thursday) the next day.
There is a risk that it will approach and land in Vietnam at 9:00 a.m. on the 7th (Friday).
It will become a tropical cyclone over Laos at 9am on Saturday the 8th.

[Typhoon No. 25] November 4th (Tuesday) 9:00 am
Area of existence: Philippines
Strength class: Strong
Movement: West: 25 km/h
Central pressure: 970 hPa
Maximum wind speed: 35 m/s (near the center)
Maximum instantaneous wind speed: 50 m/s

There is no impact on Japan, but if you are planning to travel to the Philippines or Vietnam, please keep an eye on the latest information.

#Is a double typhoon occurring Pay attention to the latest information
As of 9 a.m. today, the 4th (Tuesday), the Japan Meteorological Agency has announced that the tropical cyclone that is developing in the Caroline Islands is ``expected to develop into a typhoon within 24 hours.''
If it develops into a typhoon as predicted, it will be called "Typhoon No. 26."

[Tropical cyclone] November 4th (Tuesday) 9:00 am
Area of existence: Caroline Islands
Movement: West: 15 km/h
Central pressure: 1004 hPa
Maximum wind speed: 15 m/s (near the center)
Maximum instantaneous wind speed: 23 m/s

This tropical cyclone, which formed at 9 p.m. yesterday, Monday, March 3, is likely to strengthen in the Caroline Islands and develop into a typhoon.
After that, it will reach the Mariana Islands at 9:00 a.m. on the 6th (Thursday) the next day, and move westward to the east of the Philippines from the 7th (Friday) to the 9th (Sunday).

The path it will take after that is still uncertain, but there is a possibility that it will move westward near Luzon Island in the Philippines and head toward the South China Sea, or northward to the south of Okinawa.
Please pay attention to future typhoon information.

Today's weather on the 4th (Tuesday): Widespread clear autumn skies. Rain gear comes in handy at night in Okinawa.

2025/11/04 06:18

Today, the 4th (Tuesday), the area around Japan will be covered by a migratory high pressure system, allowing sunlight to reach a wide area. On the other hand, a front is approaching from the west, and the weather in the Nansei Islands is likely to be heading downhill.



It will be sunny and sunny across the country from Hokkaido to northern Kyushu, making it a mild autumn day. The weather will be pleasant and sunny during the day, but it will get colder in the mornings and evenings, so please be aware of the temperature differences throughout the day.

There are some places in northern Hokkaido where it starts to rain at night, so if you are returning home late, it would be a good idea to bring rain gear.
Also, there are many clouds on the Pacific coast, such as the Tokai, Kinki, and southern Kyushu areas, where winds from the east around high pressure systems blow, and there is a possibility of localized showers, so it is a good idea to bring a foldable umbrella when going out.

The Nansei Islands will gradually experience rain as the front approaches. There are some places where it rains heavily at night, so please bring rain gear if you go out.

It will be colder tomorrow morning, so be careful of the temperature difference between daytime and daytime.

2025/11/03 19:09

Today, the atmospheric pressure is high in the west and low in the east, with cold air flowing into the upper atmosphere. North winds were blowing in the Tokyo and Kinki regions, with the announcement of the first Kogarashi, and the temperature did not rise much during the day, making it a chilly day for this time of year.

Tomorrow, the sun is expected to return widely, covered by a migratory high pressure system. In the morning, cold air remains in the upper atmosphere and radiative cooling increases, making it colder in many places.




The expected minimum temperature is 3c in Sapporo, 6c in Sendai, 9c in Tokyo, 7c in Kanazawa, 8c in Nagoya, 10c in Osaka, 8c in Kochi, and 11c in Fukuoka, which is expected to be the coldest in many places this season. When going out, please take proper measures to protect yourself from the cold. On the other hand, during the day, there are many places on the Sea of Japan side where the temperature will be higher than today, and the predicted maximum temperature is Sapporo: 12c, Sendai: 14c, Tokyo: 17c, Nagoya: 18c, Kanazawa: 18c, Osaka: 19c, Kochi: 21c, Fukuoka: 20c, and it looks like it will be a comfortable and sunny day with temperatures exceeding 20c mainly in western Japan. It will be a bit chilly in eastern and northern Japan. In addition, the temperature difference between morning and evening and daytime will be large in each region, so please take care of your health so as not to get sick.

Today, November 3rd, "Kogarashi No. 1" will be held in the Tokyo and Kinki regions.

2025/11/03 14:49

There is a low pressure system east of the Kuril Islands and the sea east of Japan, and it is moving northeast.
On the other hand, high pressure is extending eastward from the continent, and the area around Japan is temporarily experiencing a winter-like atmospheric pressure pattern of high in the west and low in the east.

As a result, the northerly winds became stronger,
Today (November 3rd), the Japan Meteorological Agency announced that ``Kogarashi No. 1'' was blowing in the Tokyo and Kinki regions.

This is Kogarashi No. 1, which is 4 days earlier than last year (November 7th) in 2024.

The maximum instantaneous wind speeds in various locations in the Kinki region until 11 a.m. on the 3rd today are as follows.

Osaka 10.8 m/s North wind (10:52)
Kobe 13.3 m/s North-northwest wind (9:43)
Kyoto 9.5 m/s West-northwest wind (9:11)
Maizuru 14.8 m/s North-northwest wind ( 9:34)
Hikone 16.4 m/s Northwest wind (8:50)
Nara 11.5 m/s North-northwest wind (10:47)
Wakayama 15.8 m/s North-northwest wind (10:26 a.m.)


The Tokyo region recorded a northwest wind of 17.7 m/s by 2 p.m.




Please note that "Kogarashi No. 1" is not announced at meteorological observatories nationwide.
It will be announced in two locations: Tokyo and the Kinki region.

By the way, the definition of "Kogarashi No. 1" in the Kinki region mentioned above is different in Tokyo and Kinki, and the Japan Meteorological Agency makes a comprehensive judgment and announces it based on the first day when the following guidelines are met.

In the case of Tokyo,
----------------------------------------------------
1.Period: Mid-October to the end of November
2.Pressure distribution: Winter type pressure distribution with high in the west and low in the east
3.Wind direction and speed: Wind from north to west-northwest, maximum wind speed of 8 m/s or more
4.Observation point: Tokyo
----------------------------------------------------

In the Kinki region,
----------------------------------------------------
1.Period From frost to winter solstice. (October 23rd to December 22nd in 2025)
2. Pressure distribution: Winter type pressure distribution with high in the west and low in the east
3. Wind direction/speed: Wind from the north, maximum wind speed of 8 m/s or more
4. Observation point: Osaka, Kobe, Kyoto, Hikone, Maizuru, Wakayama
--------------------------------------------------------

.

"Kogarashi No. 1" in the Kinki region

2025/11/03 14:11

There is a low pressure system east of the Kuril Islands and the sea east of Japan, and it is moving northeast.
On the other hand, an anticyclone is protruding eastward from the continent.

The area around Japan temporarily experienced a winter-like atmospheric pressure pattern of high in the west and low in the east, and northerly winds strengthened in the Kinki region.
Today (November 3), the Osaka Regional Meteorological Observatory announced that ``Kogarashi No. 1'' had blown.

This is Kogarashi No. 1, which is 4 days earlier than last year (November 7th) in 2024.

The maximum instantaneous wind speeds in various locations in the Kinki region until 11 a.m. on the 3rd today are as follows.


Osaka 10.8 m/s North wind (10:52)
Kobe 13.3 m/s North-northwest wind (9:43)
Kyoto 9.5 m/s West-northwest wind (9:11)
Maizuru 14.8 m/s North-northwest wind ( 9:34)
Hikone 16.4 m/s northwest wind (8:50)
Nara 11.5 m/s north-northwest wind (10:47)
Wakayama 15.8 m/s north-northwest wind (10:26)





The date of occurrence of "Kogarashi No. 1" in the Kinki region is determined and announced by the Japan Meteorological Agency, based on the first day when the following guidelines are met.
----------------------------------------------------
1. Period From frost to winter solstice. (October 23rd to December 22nd in 2025)
2. Pressure distribution Winter type pressure distribution with high in the west and low in the east
3. Wind direction and speed Wind from the north, maximum wind speed of 8 m/s or more
4. Observation point Osaka, Kobe, Kyoto, Hikone, Maizuru, Wakayama
----------------------------------------------------

Please note that "Kogarashi No. 1" will not be announced at meteorological observatories nationwide.
It will be announced in two locations: Tokyo and the Kinki region.

By the way, the above-mentioned definition of "Kogarashi No. 1" in the Kinki region is different between Tokyo and Kinki, and in the case of Tokyo,

-------------------------------------------------------
1. Period: Mid-October to the end of November
2. Pressure distribution: Winter type pressure distribution with high in the west and low in the east
3. Wind direction and speed: Wind from north to west-northwest, maximum wind speed of 8 m/s or more
4. Observation point Tokyo
----------------------------------------------------

.

Tohoku region, Hokuriku region: Be careful and be alert to disasters caused by heavy rain

2025/11/03 08:41

There is a low pressure system in the central Japan Sea and east of Japan, moving eastward and northeastward, respectively. Meanwhile, high pressure is protruding from the continent.
Currently, rain and thunderstorms are occurring mainly on the Sea of Japan side of Honshu.



On the 3rd, strong cold air for this time of year will flow at an altitude of approximately 5,500 meters, with temperatures below -30 degrees in northern and eastern Japan and below -24 degrees in western Japan. Additionally, a low pressure system is expected to move toward the Tohoku region, and a trough of pressure is expected to pass from western Japan to northern Japan. As a result, atmospheric conditions from northern to western Japan will be extremely unstable due to strong cold air and low pressure in the upper atmosphere.



#Rain Forecast#
There will be heavy rain or strong rain accompanied by thunder in some places on the 3rd in the Tohoku and Hokuriku regions. There are places where the ground has become loose due to heavy rains so far, and the risk of landslides may increase even with little rainfall.
The predicted 24-hour precipitation from 6:00 on the 3rd to 6:00 on the 4th is high in some places:
Tohoku Japan Sea side 40 mm
Niigata Prefecture 100 mm
br Toyama Prefecture 60 mm
Ishikawa Prefecture 60 mm
Fukui Prefecture 60 mm

#Wind forecast#
Maximum expected on the 3rd Wind speed (maximum instantaneous wind speed)
Tohoku Sea of Japan side Sea 18 meters (30 meters) Tohoku Sea of Japan side Land 13 meters (25 meters)

#Disaster prevention matters#
Please be careful of landslides, flooding of low-lying land, and rising river waters on the 3rd in the Tohoku and Hokuriku regions. From northern Japan to western Japan, please be careful of thunderstorms, tornadoes, strong gusts of wind, and short periods of heavy rain for the next 3 days. If there are signs that a cumulonimbus cloud is approaching, please take precautions such as moving inside a building. There is also a risk of hail, so please be careful when managing crops and agricultural facilities.

The Sea of ??Japan side from Tohoku to Hokuriku is experiencing rough weather. Be careful and be cautious of heavy rain and strong winds

2025/11/02 17:42

There are low pressure systems over Hokkaido and the western Sea of Japan, which are moving northeast and east, respectively.
The low pressure system in the Sea of Japan will approach the northeast Sea of Japan side towards the morning of the 3rd, and after that, the pressure will temporarily become high in the west and low in the east, and the gradient of the pressure will become larger.
Also, through the 3rd, strong cold air is expected to flow into the air at an altitude of approximately 5,500 meters, with temperatures below -30 degrees Celsius in northern and eastern Japan, and below -24 degrees Celsius in western Japan.
For this reason, atmospheric conditions from northern Japan to western Japan will be extremely unstable due to strong cold air and low pressure in the upper atmosphere.



If rain clouds develop more than expected in the Tohoku and Hokuriku regions, there is a possibility of warning-level heavy rain.
Also, if the pressure gradient in the sea off the Sea of Japan side of northeastern Japan becomes larger than expected, there is a possibility of warning-level winds from the north.



###Rain Forecast
In the Tohoku and Hokuriku regions, there will be heavy rain or strong rain accompanied by thunder in some places through the 3rd.
There are places where the ground has become loose due to the heavy rains so far, and the risk of landslides may increase even with little rainfall.

The predicted hourly precipitation from the 2nd to the 3rd is 20 mm in some places,
on the Sea of Japan side of Tohoku.

The predicted precipitation for the 24-hour period from 6pm on the 2nd to 6pm on the 3rd is expected to be 60mm in some places,
on the Sea of Japan side of Tohoku.
Hokuriku region 100mm.



###Wind forecast
Maximum wind speed (maximum instantaneous wind speed) expected on the 3rd
Tohoku Sea of Japan side, sea, 18 meters (30 meters).
Tohoku Japan Sea side land 13 meters (25 meters).

###Disaster Prevention Matters
In the Tohoku and Hokuriku regions, please be careful of landslides, flooding of low-lying areas, and rising river waters through the 3rd.
Be careful of thunderstorms, tornadoes, severe gusts of wind, and short periods of heavy rain from northern Japan to western Japan until the 3rd.
If there are signs that a cumulonimbus cloud is approaching, please take precautions such as moving inside a building.
There is also a risk of hail, so please be careful about managing crops and agricultural facilities.