"Typhoon No. 5" is due to emergence, it is more west than originally expected, is it much closer to Kanto at the end of the week What will the impact be

2025/07/12 11:54

As of 9am today, Saturday the 12th, the tropical cyclone, which is almost stagnant in the waters near Ogasawara, is expected to develop into a typhoon by tonight.


If a typhoon occurs next, it will be called "Typhoon No. 5."



As of 9am today, Saturday the 12th, the tropical cyclone is approximately 300km southwest of
Chichijima, and is almost stagnant.

The central pressure is 1002hPa, the maximum wind speed near the center is 15m/s, and the maximum instantaneous wind speed is 23m/s.


As soon as possible, a typhoon is expected to be on the southwest sea of Chichijima by tonight, and
A typhoon is expected to approach Chichijima and Hahajima as soon as it becomes a typhoon.

After that, the typhoon will move north as it progresses along the warm sea level, and by the morning of the 14th, the week is expected to approach the Izu Islands and Kanto region.


This has changed from forecasts to approach the Kanto region more than previously expected.



This is a prediction for rain tomorrow morning, Sunday the 13th.


The typhoon that changes from a tropical cyclone will likely be closest to the Ogasawara Islands (Chichijima and Hahajima) tomorrow, the morning of the 13th (Sunday).

/Beware and vigilance of increasing rain and wind.

The characteristic of this typhoon that changes from the tropical cyclone this time is that it has long, active rain clouds not only near the center of
, but also in the south, so rain is expected to last for a long time even after the typhoon passes.


Even in the Ogasawara Islands, heavy rain may occur from the morning of the 14th (Monday) to the morning of the 13th (Sunday) when typhoons approach.

In the Ogasawara Islands, the 24-hour rainfall from 6:00am on the 13th to 6:00am on the 14th is expected to be 100mm at high places.


Please be careful of landslides and be careful of strong winds and high waves.



By the time the date changes to Monday the 14th, a typhoon is expected to move north towards the southern seas of Kanto.

Also, another tropical cyclone is expected to move north in the East China Sea, and
It is expected that warm, humid air will continue to flow easily around Honshu.


To mid-next week, there will likely be many areas where heavy rain will occur, mainly on the Pacific side of the west and north Japan.


It is likely that there will be days when the wind will be strengthened due to the approaching typhoons and the weather will be rough.

Please continue to check the latest weather and typhoon information.

El Nino Surveillance News: La Nina phenomenon may occur around autumn

2025/07/11 19:55

The Japan Meteorological Agency announced the latest El Nino surveillance news on Thursday, the 10th.


The sea surface temperature in the monitored sea area continues to be normal, and neither the El Nino nor La Nina phenomenon has occurred, so the situation continues to be normal.
However, from around autumn, the sea surface temperature in the surveillance waters is predicted to drop, and there is a possibility that the La Nina phenomenon will occur.


The difference from the standard sea surface temperature in the El Nino monitoring waters in June was -0.2 C, which was close to the standard. Additionally, the five-month moving average used to determine the occurrence of El Nino and La Nina phenomena was +0.1 C in April, which was close to the standard value.
The sea surface temperature in the Pacific equator is higher than normal in the western part and lower than normal in the eastern part. Convection activity near the Date Line in the Pacific Equator has been comparable to normal years.
After the above process, El Nino. Both La Nina are in peacetime and have not occurred.



According to forecasts from the Japan Meteorological Agency's Atmospheric Ocean Coupling Model, it predicts that strong trade winds will continue in the Pacific equator in the future, and the sea surface temperature in the surveillance area may drop. However, this prediction is related to rising sea surface temperatures in the eastern part of the Indian Ocean tropical region, where prediction accuracy is low.


Therefore, there is a 40% chance that the La Nina phenomenon will occur around autumn, and a 60% chance that it will continue to remain in peacetime. Probability suggests that the peacetime situation will continue, but it is suggested that the La Nina phenomenon may occur in the future.


#What is the El Nino/La Nina phenomenon
The El Nino phenomenon is a phenomenon in which the sea surface temperature increases above normal from the Pacific equatorial region to the South American coast, and this condition continues for about a year.


On the other hand, the phenomenon in which the sea surface temperature continues to be lower than normal in the same sea area is called the La Nina phenomenon.


Once the El Nino or La Nina phenomenon occurs, it is thought that abnormal weather will occur around the world, including in Japan.

Latest month forecast: The harsh heat is expected to continue throughout the country.

2025/07/11 19:08

Yesterday, the 10th (Thursday), the Japan Meteorological Agency announced the latest monthly forecast, which will provide an estimate of the weather for the next month.



According to the forecast results of the numerical forecast, the average sea level pressure for the next month is higher than normal near Honshu, and is likely to be covered by the Pacific high pressure, mainly in eastern and western Japan. Meanwhile, the sea level pressure is expected to be lower than normal in the East China Sea, and is expected to be more susceptible to moist air, especially in Okinawa and Amami regions.
The temperature around 1500m above the sky is projected to be higher than normal, mainly in northern Japan.



Pressure will be on average, mainly on the Pacific side of North, East and Western Japan. However, the temperature is expected to continue for days with high temperatures, and high temperatures result in more water vapor contained in the air, making it easy to cause sudden rain or thunderstorms such as guerrilla thunderstorms. Even if it's sunny, you should be careful of sudden changes in the afternoon weather.
In Okinawa and Amami, it is susceptible to humid air and is expected to have more rainfall than normal. Be aware of the latest weather information as it is also a time when typhoons and tropical cyclones are easily approachable.



Average temperatures will be "higher than normal" in North, East and Western Japan throughout the period. It is predicted that in Okinawa and Amami, it is "presumably high or as expensive as normal."
On Thursday, the Japan Meteorological Agency announced early weather information regarding high temperatures. From around the 16th, the temperatures are expected to be quite high nationwide, with many areas likely to be extremely hot on the hottest days of 35 C or higher. There may be some areas where the temperature is nearing 40 C, so more measures will be needed to prevent heatstroke than usual. Make sure to drink plenty of hydration, salt and take moderate breaks to prevent heat stroke.

Typhoons are expected to occur in the waters near Ogasawara within 24 hours; it is expected to travel north over Japan's Tokai region in the future.

2025/07/11 17:50

Today, the 11th (Friday), a tropical cyclone broke out in the waters near Ogasawara. This tropical cyclone is expected to develop into a typhoon within the next 24 hours. If it were to become a typhoon, it would be called Typhoon No. 5.

#Tropical cyclone: Friday the 11th, 3pm
===
Center location: Ogasawara waters
Moving speed: West-northwest, slow
Center pressure: 1002hPa
Maximum wind speed: 15m/s (near the center)
Maximum instantaneous wind speed: 23m/s
===

/Based on today, the 11th, the tropical cyclone will become a typhoon in the waters near the Ogasawara Islands by tomorrow, Saturday the 12th, and will then move northward over Japan's Tokai region with a speed increase. It is expected to turn into a temperate cyclone in the waters near the Kuril Islands on Tuesday the 15th.


In Ogasawara, the rain and wind will gradually increase as Sunday the 13th, and waves will rise at sea with swells. Be careful of intensifying rain, strong winds and high waves.


In Kanto, Tohoku, and Hokkaido, rain and wind will increase, mainly in the coastal areas from the 14th to the 15th due to the effects of typhoons moving north. Additionally, as another low pressure system is expected to move eastward from the East China Sea around Japan, rain and wind will increase nationwide, and there is a possibility that heavy warning-level rain will occur, especially in the Pacific side of western Japan and eastern Japan.

Please be careful of the latest weather information that will be updated in the future.

Next week, the stormy weather in Kanto and Northern Japan will affect transportation, and there are fears of heavy rain on the alert

2025/07/11 13:05

#Scary weather in Kanto and Northern Japan next week Will transportation be affected There may be fears of heavy rain on the warning level



On Monday the 14th, a low pressure system will move around western Japan.
It is expected that there will be some areas in the East, Western Japan and the Nansei Islands.
Towards the 15th (Tuesday), warm, moist air, tropical air, will flow towards the low pressure system, causing heavy rain, localized, mainly on the Pacific side.
There is a risk of heavy rain at the warning level, especially in the southern Kanto region, where warm and humid air is prone to flowing into the air.



Also, towards the second half of the week, high pressure in the eastern part of Japan will increase and spread out near Japan.
The pressure slope will increase on the Pacific side of the north and eastern Japan, mainly from Tuesday the 15th to Wednesday the 16th, and the wind from the south will increase, causing rough weather and heavy damage.
Please be careful of the latest weather information as it may affect transportation.

Next week, the stormy weather in Kanto and Northern Japan will affect transportation, and there are fears of heavy rain on the alert

2025/07/11 12:49

#Scary weather in Kanto and Northern Japan next week Will transportation be affected There may be fears of heavy rain on the warning level



On Monday the 14th, a low pressure system will move around western Japan.
It is expected that there will be some areas in the East, Western Japan and the Nansei Islands.
Towards the 15th (Tuesday), warm, moist air, tropical air, will flow towards the low pressure system, causing heavy rain, localized, mainly on the Pacific side.
There is a risk of heavy rain at the warning level, especially in the southern Kanto region, where warm and humid air is prone to flowing into the air.



Also, towards the second half of the week, high pressure in the eastern part of Japan will increase and spread out near Japan.
The pressure slope will increase on the Pacific side of the north and eastern Japan, mainly from Tuesday the 15th to Wednesday the 16th, and the wind from the south will increase, causing rough weather and heavy damage.
Please be careful of the latest weather information as it may affect transportation.

The heat is alleviating in the Kanto region; Western Japan continues to heatstroke alert alert alert for Ishikawa, Wakayama and Fukuoka

2025/07/11 10:09

Today, the 11th, the cold eastward wind blowing from the high pressure of the Sea of Okhotsk, temperatures will be modest, especially in the Pacific side of northern Japan and the Kanto region.
The estimated maximum temperature in central Tokyo is 26c, 10c lower than yesterday (7th), when it was a hot day. In central Tokyo, the temperature has been in the 20 C for the first time in about two weeks since June 25th, so it will feel a little easier to spend than before.

Although clouds are likely to spread in Tokai to Western Japan, the heat is expected to continue. In addition, some places may be midsummer days on the Sea of Japan side of Tohoku and Hokuriku, where sunlight is reaching.
The forecast maximum temperatures are 33 C for Kanazawa, 34 C for Nagoya, 34 C for Osaka, 34 C for Kochi, 32 C for Fukuoka.



The Ministry of the Environment and the Japan Meteorological Agency have issued heatstroke warning alerts to Ishikawa, Wakayama, and Fukuoka prefectures.


In areas where a heatstroke warning alert has been issued, significantly higher temperatures can cause damage to human health due to heatstroke.
Please refrain from activities during the hot days as much as possible, and be careful to take frequent breaks, drink water and salt.
Also, make sure to stay in a cool environment, such as using air conditioners indoors, and take full advantage of heatstroke prevention indoors.

Weather today, Friday the 11th: The sky is dominant in the Kanto region; rain is mainly on the Pacific side in western Japan

2025/07/11 06:23

Today, the 11th (Friday), the rainy season front is expected to travel south to the Izu Islands, and the low-pressure area is expected to travel north through the East China Sea.



Hokkaido has a sky pattern where clouds are likely to spread out, but the sun will occasionally arrive.
Clouds tend to spread out on the Pacific Ocean side of Tohoku and Kanto, and the sky is unclear. There are areas where showers are present, so it's safe to have a folding umbrella when going out. On the other hand, the Sea of Japan side of Tohoku and Hokuriku are likely to have strong sunlight.


In Kanto, clouds are likely to spread easily, and the sky will continue to be unclear. It's safe to have a folding umbrella when going out.
Since cold air flows in, you need to be careful about the difference in temperature and yesterday.
Clouds will spread across Tokai, but there will be some time for the sun to reach it. In the afternoon, there are some showers, mainly inland areas and along the mountains, so be careful of changes in the sky.


In western Japan, west air flows through low-pressure areas, making it easy to rain, mainly on the Pacific side. Even if it's not raining when you're out, it's safe to bring a folding umbrella or something.
There is a risk of heavy rain and thunderstorms in southern Kyushu, Okinawa and Amami, so be careful of landslides, flooding of low lands, and rising rivers.

[Kanto Linear Precipitation Zone Predictions] Heavy rain peaks overlapping when you get home today; the risk of disasters increases rapidly; Protect yourself from torrential rain

2025/07/10 11:44

The Japan Meteorological Agency announced before 10am today (Thursday), 10th, "Linear precipitation zones will occur in Ibaraki Prefecture, Tochigi Prefecture, Gunma Prefecture, Saitama Prefecture, Chiba Prefecture, and Tokyo regions from the evening until the beginning of the evening today, Thursday, 10th, and the risk of heavy rain disasters may increase dramatically."

The rainy season front will revive today, Thursday the 10th, and the
front will travel south from the Tohoku region to the Kanto region tomorrow, Friday the 11th.

With the influence of warm, humid air towards the front, rising daytime temperatures and cold air above, the air condition of the
/b is expected to become extremely unstable over a wide area in the Kanto region, especially from the evening.



If you look at the forecast for the rain and wind starting today, the 10th (Thursday), we will see a prediction that
/active rain clouds will appear in red from southern Tohoku to northern Kanto.

Under these rain clouds, nearly 100mm of rain falls in three hours, and
Heavy rain falls all at once in a short period of time,
The risk of heavy rain disasters increases dramatically.



In addition, in the evening, active rain clouds also hit the southern Kanto region, and in central Tokyo, it seems that heavy rain will reach the peak of heavy rain when you get home.

There are places where extremely heavy rain of over 50mm per hour with lightning, and
There is a risk that roads will become like rivers, exceeding the drainage function of urban areas.

If the rain clouds move slowly or stagnate, a linear precipitation zone will occur, and torrential rain may occur.



At night, there will be fewer heavy rains in the north Kanto region, but in southern Kanto region, such as Tokyo and Yokohama, heavy rain is expected to continue, with some areas becoming rainy.



Check out the surrounding rain clouds frequently using the rain cloud radar today.

If heavy rain begins, please stay away from underpasses and underground facilities and on the second floor or above of a sturdy building.

/ Also, try to stay away from the mountains, cliffs and slopes even within your home.



The atmosphere is expected to continue to remain unstable tomorrow, the 11th (Friday), and
Rain is expected to continue to be prone to falling.

However, tomorrow will turn into a north wind, and the temperature will not rise
Tomorrow's highest expected temperature in Tokyo is 25c, which is likely to be quite cool.
Please be careful of changes in temperature.

Atmospheric unstable. From Tohoku to Kanto, from southern Kyushu to Okinawa, from Okinawa to heavy rain.

2025/07/10 08:44

The rainy season front extends from Japan's Tokai to the Tohoku region.
In addition, there are low pressure systems in the south of Japan and around the Sakishima Islands, moving north-northwest and north-east respectively.



The rainy season front is expected to travel south through the Tohoku and Kanto-Koshin regions from Thursday the 10th to tomorrow, Friday the 11th.
In the Tohoku region and eastern Japan, the air condition will likely be extremely unstable today, the 10th (Thursday), due to the influence of warm, humid air flowing towards the front, rising daytime temperatures, and cold air above.


In addition, in western Japan and the Nansei Islands, the air condition is expected to become extremely unstable today, the 10th (Thursday), due to the effects of warm, humid air flowing around the edge of high pressure and rising daytime temperatures.


In the Kanto-Koshin region, on the 10th, beware of low-lying flooding, river flooding and overflowing, and landslides, and beware of the Tohoku region, western Japan and the Nansei Islands.
Also, be careful of severe gusts of wind, such as lightning strikes and tornadoes, and hail fall.



[Rain commentary]
Precency from the start of falling (00:00 on the 8th) to 5:00 on the 10th (preliminary figures from Amedas)
Okinawa Main Island Region


























































































































































































































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[Rain forecast]
From the Tohoku region to the western Japan and the Nansei Islands, there are likely to be some areas where extremely heavy rain and heavy rain accompanied by thunder will fall on the 10th.


The expected 1 hour precipitation on the 10th is high,
: Tohoku Sea of Japan side: 40mm
: Tohoku Pacific side: 40mm
: Northern Kanto region: 60mm
: Southern Kanto region: 50mm
: Koshin region: 50mm
: Miyazaki prefecture: 40mm
: Kagoshima prefecture (excluding Amami region): 40mm
: Amami Beauty region: 40mm
Okinawa main island region: 40mm
Sakishima Islands: 40mm







/B: The expected 1 hour precipitation on the 11th is high,
: Koshin region: 30mm

/Miyazaki prefecture: 40mm
/Kagoshima prefecture (excluding Amami region): 40mm
/B: Amami region: 40mm

The 24-hour precipitation expected from 6:00 on the 10th to 6:00 on the 11th is a high place:
Tohoku region Sea of Japan side: 60 mm
Tohoku region Pacific side: 60 mm
Kanto region Northern region: 120 mm
Kanto region Southern region: 100 mm
Koshin region: 120 mm
Miyazaki prefecture: 150 mm
Kagoshima Prefecture (excluding Amami) 120mm
Amami region 120mm
Okinawa Main Island Region 100mm
Sakishima Islands 80mm

[Disaster Prevention Items]
In the Kanto-Koshin region, be careful of low-reaching land flooding, river flooding and flooding, and landslides on the 10th, and be careful and wary of the Tohoku region, western Japan and the Nansei Islands.
Also be careful of severe gusts of wind, such as lightning strikes and tornadoes.
If there are signs of developing cumulonimbus clouds approaching, try to ensure safety by moving inside the building.
There is a risk of hail falling, so please be careful when managing agricultural crops and agricultural facilities.