[Typhoon information] Typhoon No. 15 moves west toward the Sea of Japan. Beware of heavy rain, strong winds, and high waves

2026/08/12 08:06

As of 6 a.m. today, the 12th (Wednesday), Typhoon No. 15 is located approximately 40 km east-northeast of Tsuruga City and is moving westward at a speed of approximately 35 km per hour.
After this, Typhoon No. 15 is expected to move further west and become a tropical cyclone off the coast of San'in by early afternoon today.

#Typhoon No. 15 12th (Wednesday) 6:00 a.m.
==================
Center location: Approximately 40km east-northeast of Tsuruga City
Direction of movement, speed: West 35km/ h
Central pressure 996hPa
Maximum wind speed 18m/s (near the center)
Maximum instantaneous wind speed 25m/s
==================



Typhoon No. 15 made landfall in southern Ibaraki Prefecture at around 8 pm yesterday, Tuesday, the 11th. The typhoon then passed through the Kanto-Koshin region, and as of 6 a.m. today, Wednesday, the 12th, the typhoon's center was moving west near Tsuruga City, Fukui Prefecture.

Rain fell across a wide area of northern and western Japan, and in Miura, Miura City, Kanagawa Prefecture, heavy rain of 40.5 mm was observed in the hour up to 3:20 a.m.

Typhoon No. 15 is expected to continue moving westward and become a tropical cyclone off the coast of San'in by early afternoon today, but people from Tohoku to western Japan should continue to be careful of strong winds, high waves, and heavy rain. In particular, rain is expected to continue in the Tohoku and Kanto regions even after the typhoon has left the region, as moist air flows in from easterly winds.

Strong winds will blow from eastern Japan to western Japan today, the 12th (Wednesday), causing heavy swells.
In addition, the atmospheric conditions will be unstable due to the effects of warm, humid air flowing into the typhoon and cold air in the upper atmosphere, so heavy or very heavy rain with thunder is expected to occur in a wide area from the Tohoku region to western Japan today, the 12th (Wednesday), resulting in heavy rain in some places.

In addition, as the effects of spring tides and typhoons overlap, the tide level will rise in eastern Japan today, the 12th (Wednesday), and in western Japan, tomorrow the 13th (Thursday), resulting in high tides and storm surges in some places.





[Rain Forecast]
Tohoku region 150 mm
Tohoku region 150mm
Kanto-Koshin region 120 mm
Tokai region 150 mm
Kinki region 150 mm
[Disaster prevention matters]
Today, the 12th (Wednesday), please be extremely cautious of landslides in the Tohoku region. In addition, in the Tohoku region and the Kanto-Koshin region, please be wary of flooding of low-lying land, rising water levels and flooding of rivers.
In western Japan, please be on high alert for high tides until tomorrow the 13th (Thursday).
From the Tohoku region to western Japan today, the 12th (Wednesday), please be careful of strong gusts of wind that could cause lightning and tornadoes. 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.

[Typhoon Information] Typhoon No. 15 makes landfall in southern Ibaraki Prefecture

2026/08/11 20:53

Typhoon No. 15 made landfall in the southern part of Ibaraki Prefecture around 8 pm today, Tuesday, the 11th.



Typhoon No. 15 is currently moving westward at a speed of 20km per hour, and is expected to pass through the Kanto-Koshin region and near Gifu City tomorrow morning.



Currently, it is raining over a wide area from Tohoku to eastern Japan.
In the future, there is a risk that strong rain clouds will form over a wide area of eastern Japan, including the Kanto-Koshin region, which is close to the path of the typhoon, and on the Pacific coast of Tohoku, where warm, humid air flows in from the sea.There is a risk that heavy or very heavy rain accompanied by thunder may result in heavy rain.
Tomorrow, the 12th (Wednesday), it will start raining in the morning on the Sea of Japan side of western Japan, and in the afternoon it will rain over a wide area of western Japan.

In addition, strong winds are widespread across Tohoku and eastern Japan, and as of 8:30 p.m. today, a storm warning has been issued for Fukushima, Ibaraki, and Chiba prefectures. Waves are high at sea, and a wave warning has been issued for coastal areas from Aomori to Chiba prefectures.

Please pay attention to upcoming weather information.

New typhoon forecast: Possibility of approaching the Japanese archipelago from the east of Japan again

2026/08/11 17:45

At 3:00 p.m. today, the 11th, the Japan Meteorological Agency announced that the tropical cyclone currently developing in southern Japan is "expected to develop into a typhoon within the next 24 hours." The next time it occurs, it will be called Typhoon No. 17, making it the third typhoon this month.

#Tropical cyclone 11th (Tuesday) 15:00
==================
Center location South of Japan
Moving East Slowly
Central pressure 998 hPa
Maximum wind speed 15 m/s (near the center)
Maximum instantaneous wind speed 25 m/s
==================



The tropical cyclone is expected to move eastward and develop into a typhoon tomorrow, Wednesday the 12th. It is then expected to change its course northward near Ogasawara around the 13th (Thursday), move northwest until around the 16th (Sunday), and head east toward Japan.
Although the forecast circle is still large and the course has not been determined, it is expected to follow a similar course to Typhoon No. 15, and may approach the Japanese archipelago from the east of Japan, so it is necessary to pay close attention to future typhoon information.

Typhoon No. 15 will make landfall in the Kanto region around the beginning of the night. Beware of heavy rain and strong winds.

2026/08/11 12:28

As of 12:00 noon today, Tuesday, the 11th, strong Typhoon No. 15 is located approximately 180 km east-southeast of Iwaki City and is moving westward at a speed of approximately 30 km per hour.

#Typhoon No.15 11th (Tue) 11:00
==================/br Center position Location: Approximately 180km
east-southeast of Iwaki City Travel: West 30km/h
Central pressure: 985 hPa
Maximum wind speed 23 m/s (near the center)
Maximum instantaneous wind speed 35 m/s
==================



The region from Tohoku to Kanto has entered the region of strong winds, and the winds are starting to strengthen mainly in the coastal areas. The maximum instantaneous wind speed was 21.0 m/s in Sendai City, Miyagi Prefecture, 20.6 m/s in Hachinohe City, Aomori Prefecture, and 19.3 m/s in Onahama, Iwaki City, Fukushima Prefecture. As of 11:30 a.m., storm warnings and wave warnings have been issued for a wide range of areas on the Pacific coast from Iwate Prefecture to Chiba Prefecture.

Typhoon No. 15 will continue to move westward, and there is a high possibility that it will make landfall in Ibaraki Prefecture around the beginning of the night on the 11th.
It will be the first time since statistics began in 1951 that it will land in Ibaraki Prefecture.
After making landfall, it is expected to move westwards until the 12th (Tuesday), and after reaching western Japan, it is expected to turn into a tropical cyclone by the morning of the 13th (Thursday) the next day.

In Tohoku and eastern Japan, rain and wind are expected to gradually increase from around evening today as the typhoon approaches. Winds can momentarily exceed 30 m/s, so please take precautions against typhoons, such as moving outdoor items that are easily blown away indoors, charging mobile batteries, and preparing flashlights in case of a power outage.

Also, rain is falling in the Tohoku region, far away from the typhoon, and is increasing in intensity. In the Tohoku region, heavy rain of over 30mm per hour is expected to occur, leading to heavy rain in some places. Please be extremely cautious of landslides caused by heavy rain.
Atmospheric conditions are expected to be extremely unstable from eastern Japan to western Japan until tomorrow, the 12th (Wednesday), due to the influence of warm, humid air flowing into the typhoon and cold air in the upper atmosphere. Heavy rain will fall over a wide area, and extremely heavy rain of 50 mm or more per hour will occur in some places, so vigilance is needed to avoid flooding of low-lying land and rising and flooding rivers.



#Expected amount of rain (in areas where there is a lot)
+Precipitation expected for 24 hours by 12:00 tomorrow 12th (Wednesday)
Tohoku region 180mm
Kanto Koshin region 180mm
Hokuriku region 80mm
Tokai region 120mm
+24-hour precipitation expected by 12:00 on Thursday the 13th
Tohoku region 120mm
Kanto-Koshin region 80mm
Hokuriku region 80mm
Tokai region 150mm
Kinki region 120mm

#Expected wind strength
+Maximum wind speed (maximum instantaneous wind speed) expected today, 11th
Tohoku region 25m/s (35m/s)
Kanto-Koshin region 25m/s (35m/s)
Hokuriku region 18m/s (30m/s)
Tokai region 17m/s (30m/s)
+Tomorrow 12 Maximum wind speed (maximum instantaneous wind speed) expected on Sunday (Wednesday)
Tohoku region 15m/s (25m/s)
Kanto-Koshin region 17m/s (30m/s)
Hokuriku Region: 18m/s (30m/s)
Tokai region: 15m/s (25m/s)

Expected wave height
Tohoku region 7m
Kanto region 7m
+Expected wave height for tomorrow 12th (Wednesday)
Tohoku region 5m
Kanto region 5m

Typhoon No. 15 approaches Kanto region; warning of heavy rain and strong winds over wide area

2026/08/11 07:02

Typhoon No. 15 was located east of Iwaki City, Fukushima Prefecture at 6am on the 11th, and was moving west-northwest at a speed of approximately 35km/hr.

The typhoon is developing and moving westward, approaching the Kanto region on the afternoon of the 11th, and there is a risk of it making landfall.



In eastern Japan, which is close to the path of the typhoon, warm and humid air is expected to flow in.
Currently, there is cold air above the Kanto region, and due to this, the atmospheric conditions will be extremely unstable.

On the 11th, heavy to very heavy rain is expected to fall over a wide area from the Tohoku region to eastern Japan, with some localized areas expected to experience heavy rain.
Please be extremely cautious of landslides through the 12th.



Very strong winds will blow in the Tohoku region and eastern Japan, and there will be places on the Pacific side where there will be swells and severe winds.

Typhoon No. 15 is expected to move westward through eastern Japan and turn into a tropical cyclone on the Sea of Japan side of western Japan on the 12th.

[Rain Forecast]
Expected 24-hour precipitation from 6:00 on the 11th to 6:00 on the 12th will be heavy in the Tohoku region. 180mm
Kanto-Koshin region 150mm
Izu Islands 100mm

Then on the 12th from 6:00 to 13 The predicted 24-hour precipitation by 6 o'clock on Sunday is high in some places:
Tohoku region 120mm
Kanto-Koshin region 120mm
br Tokai region 150 mm

[Wind forecast]
Maximum wind speed expected on the 11th (maximum instantaneous wind speed)
Tohoku region Direction: 25 meters (35 meters)
Kanto-Koshin region 25 meters (35 meters)
Hokuriku region 18 meters (30 meters)
Tokai region 17 meters (30 meters)

Maximum wind speed expected on the 12th (max. Instantaneous wind speed)
Tohoku region 15 meters (25 meters)
Kanto-Koshin region 17 meters (30 meters)
Hokuriku region 18 meters (30 meters)
Tokai region 15 meters (25 meters)



[Wave forecast]
Expected wave height on the 11th
Tohoku region 7 meters with swells
Kanto region 7 meters With swells

Wave height expected on the 12th
Tohoku region 5 meters with swells
Kanto region 5 meters with swells

Typhoon No. 15 likely to land tomorrow; heavy rain and strong winds in eastern Japan

2026/08/10 19:24

Typhoon No. 15 was in the east of Japan at 6pm on the 10th and was moving north-northwest at a speed of approximately 20 km per hour.



The typhoon will gradually change course to the west as it continues to develop, and will approach the Kanto-Koshin region on the afternoon of the 11th, with the risk of making landfall. In eastern Japan, which is close to the typhoon's path, warm, humid air will flow in, and the atmospheric conditions will be extremely unstable due to the influence of cold air in the upper atmosphere.

On the 11th, heavy to very heavy rain is expected to fall over a wide area from the Tohoku region to eastern Japan, with some localized areas expected to experience heavy rain. In the Tohoku region, please be on high alert for landslides on the 11th. In the Tohoku and Kanto-Koshin regions, be wary of inundation of low-lying land, rising water levels and flooding of rivers.



Atmospheric conditions will be unstable in eastern Japan on the 11th, so please be careful of strong gusts such as lightning and tornadoes. 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.

On the Pacific side, there will be strong winds and swells, leading to severe conditions in some places. Please be on guard for strong winds and high waves accompanied by swells on the 11th in the Pacific side of the Tohoku region and the Kanto region.



[Rain Forecast]
24-hour precipitation expected from 18:00 on the 10th to 18:00 on the 11th (where there is a lot)
Tohoku region 150mm

24-hour precipitation expected from 18:00 on the 11th to 18:00 on the 12th (where there is a lot)
Tohoku region 120mm
Kanto-Koshin region 150 mm
Tokai region 100 mm
[Wind forecast]
Maximum wind speed expected on the 11th ( Maximum instantaneous wind speed)
Tohoku region 25 meters (35 meters)
Kanto region 25 meters (35 meters)
Hokuriku region Maximum wind speed (maximum instantaneous wind speed) expected on the 12th
Kanto region 15 meters (30 meters)
Hokuriku region 18 meters (30 meters)

[Wave forecast]
Wave height expected on the 11th
Tohoku region 8 meters with swells
Kanto region 7 meters with swells
Wave height expected on the 12th
Kanto region 5 meters with swells

The typhoon is expected to move westward through eastern Japan and turn into a tropical cyclone on the Sea of Japan side of western Japan on the 12th.
Even after turning into a tropical cyclone, there is a risk of severe weather near the cyclone.
Please pay attention to the latest information.

[Typhoon information] Typhoon No. 15 expected to approach and land in Tohoku-Kanto; possibility of severe storms

2026/08/10 14:59

Today, the 10th (Monday), Typhoon No. 15 is located in the east of Japan and is moving northwest at a speed of approximately 25 kilometers per hour.
After this, Typhoon No. 15 will change course to the west and will approach the Tohoku-Kanto region tomorrow, the 11th (Tuesday), and there is a risk that it will make landfall.

#Typhoon No. 15 10th (Monday) 12:00 p.m.
==================
Center location East of Japan
Moving direction and speed Northwest 25km/h
Central pressure 990hPa
Maximum wind speed 20m/s (near the center)
Maximum instantaneous wind speed 30m/s
==================



Typhoon No. 15 will continue to intensify and move westward, and there is a risk that it will approach the southern Tohoku and Kanto-Koshin regions in the afternoon of tomorrow, the 11th (Tuesday), and may make landfall. After that, it will approach the Hokuriku region from the night of the 11th (Tuesday) to the 12th (Wednesday).

The Pacific coast of Tohoku and the Kanto-Koshin region will experience heavy rain on the 11th (Tuesday) as the typhoon approaches, leading to heavy storms and heavy storms mainly at sea. Atmospheric conditions are expected to be extremely unstable due to the effects of warm, humid air flowing toward the typhoon and cold air above.

In the Hokuriku region, heavy rain is expected to occur in some places from the afternoon of the 11th (Tuesday) to the morning of the 12th (Wednesday), and strong winds are expected to blow mainly at sea but also on land.

Please note that the path of the typhoon is still uncertain, so please pay close attention to future typhoon information. Also, many people are planning to travel long distances during the Obon period. Transportation may be affected, so please check the latest information.


[Disaster Prevention Matters]
#Tohoku Pacific Side
Be on high alert for landslides caused by heavy rain from early afternoon to late evening on the 11th (Tuesday), and be on guard for flooding of low-lying areas, rising water levels, and flooding of rivers from before noon to late evening on the 11th (Tuesday).
Also, please be on guard for damage to buildings and traffic disruption due to strong winds from the morning of the 11th (Tuesday) until late at night, and at sea, from noon to late at night on the 11th (Tuesday), please be on guard for damage to ships and coastal facilities due to high waves accompanied by swells.

#Kanto-Koshin Region
Please be wary of strong winds and high waves accompanied by swells on the afternoon of the 11th (Tuesday).
From the afternoon of the 11th (Tuesday) to the 12th (Wednesday), there will be heavy rain with thunder in some places. If the rain clouds develop more than expected, or if the rain clouds continue to grow, there is a possibility of heavy rain reaching warning level.
Be careful of flooding in low-lying areas, rising river levels, and landslides, and be careful of lightning strikes, tornadoes, and other violent gusts.
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.

#Hokuriku Region
Please be careful of flooding of low-lying areas, rising river waters, and landslides from the afternoon of the 11th (Tuesday) to the morning of the 12th (Wednesday), and strong winds from the evening of the 11th (Tuesday) to the morning of the 12th (Wednesday).

Weather for today, the 10th (Monday) Typhoon No. 13 is moving away, and Typhoon No. 15 is approaching

2026/08/10 06:30

Typhoon No. 13 is expected to head towards the continent, while Typhoon No. 15 is expected to move northward through the east of Japan and approach Honshu.



Due to the influence of the high pressure system extending from Primorye towards Sakhalin, many places on the Sea of Japan side will receive sunlight. On the other hand, on the Pacific side, there will be many hours of cloudy weather due to the influence of humid air. Winds will gradually become stronger on the Northeast Pacific side towards the end of the night. Please be careful of high waves in coastal areas. It will be safer if you prepare for a typhoon early.
There is a risk of sudden changes in the weather in eastern Japan from the afternoon. Please take a folding umbrella with you when you go out.
In eastern and western Japan, temperatures are expected to drop slightly, but it is expected to be extremely hot. Please be careful of heat stroke.
Typhoon No. 13 will move away from the mainland, but rain will remain in Okinawa. Be careful of the sideways rain. The waves will continue to be high, so please do not get close to the sea unnecessarily.

Weather for today, the 10th (Monday) Typhoon No. 13 is moving away, and Typhoon No. 15 is approaching

2026/08/10 06:29

Typhoon No. 13 is expected to head towards the continent, while Typhoon No. 15 is expected to move northward through the east of Japan and approach Honshu.



Due to the influence of the high pressure system extending from Primorye towards Sakhalin, many places on the Sea of Japan side will receive sunlight. On the other hand, on the Pacific side, there will be many hours of cloudy weather due to the influence of humid air. Winds will gradually become stronger on the Northeast Pacific side towards the end of the night. Please be careful of high waves in coastal areas. It will be safer if you prepare for a typhoon early.
There is a risk of sudden changes in the weather in eastern Japan from the afternoon. Please take a folding umbrella with you when you go out.
In eastern and western Japan, temperatures are expected to drop slightly, but it is expected to be extremely hot. Please be careful of heat stroke.
Typhoon No. 13 will move away from the mainland, but rain will remain in Okinawa. Be careful of the sideways rain. The waves will continue to be high, so please do not get close to the sea unnecessarily.

How many typhoons are approaching Japan

2026/08/09 22:34

We are currently in the middle of typhoon season! ! Three typhoons are occurring near Japan. When a typhoon makes landfall, the area is directly hit by strong winds and heavy rain, potentially causing significant damage. However, surprisingly few typhoons make landfall. First, let's talk about the typhoon's landfall.

Typhoon landfall, approach, and passage have different definitions.
"Landfall" refers to when the center (eye) of a typhoon reaches the coastline of Hokkaido, Honshu, Shikoku, and Kyushu.
"Approaching" refers to the state in which the center of the typhoon approaches within a 300 km radius of the location or area. "Approaching" is used not only when approaching mainland Japan, but also when approaching islands such as Okinawa and the Ogasawara Islands.
"Passage" is used when the center of a typhoon crosses a small island or peninsula and returns to the sea in a short period of time. For example, when passing through the main island of Okinawa, it is expressed as "passing through" rather than "landing."

Actually, 608 typhoons occurred from 2001 to 2025. On average, about 24 typhoons occur each year. Among them, 292 typhoons approached. Approximately half of the typhoons approached within a 300km radius of Japan. There were 75 typhoons that made landfall, making up only about 10% of the total.

When it comes to where typhoons land, the overwhelming majority are in Kagoshima Prefecture. Next are Kochi prefecture, Wakayama prefecture, Shizuoka prefecture, and Nagasaki prefecture. The only typhoon that made landfall in 2026 was Typhoon No. 6, which made landfall in Wakayama Prefecture.

As of 2026, 16 typhoons have occurred. This year, the El Nino phenomenon is expected to occur and there will be more typhoons. As the number of typhoons increases, the number of typhoons that make landfall will also increase. Let's take proper measures and prepare for the coming typhoon.