The longest recorded history of the Kuroshio snake signs of an end - Summary of the oceans from June 8th to June 14th, 2025

2025/06/19 13:25

Summary of the Oceans from June 8th to June 14th, 2025

On June 11th, the Japan Meteorological Agency announced that there were signs of an end to the large meanders of the Kuroshio Current, the longest recorded history, and that there is no major meandering at this time. They are said to be increasing their monitoring to see if the event will eventually end.



#Atmospheric pressure arrangement and waves
On the 8th and 9th, the front passed through the continent to the East China Sea and stagnated south to the east of Japan. On the 10th, the front line extended to the west and south coast of East Japan.
As of the 10th, the waves in the waters near Japan became calm.
On the 11th, the front passed through the continent and the East China Sea and extended to the southern shore of Honshu.
The pressure slope became larger between the high pressure in the waters near Ogasawara, and the waves rose slightly higher from the offshore Shikoku to the east of Kanto.
From the 12th to the 13th, a tropical cyclone advanced to the south of Taiwan and the East China Sea.
The waves rose around the tropical cyclone, and on the 12th it was hit in the waters near the Sakishima Islands.
On the 14th, a low pressure system accompanied by a front line flew northeasterly through the Sea of Japan.
The pressure slope became larger between the high pressure in the south of Japan, and waves rose in the East China Sea.



#Sea surface temperature
Sea surface temperature in the Japanese Sea has expanded to normal waters on the northern and central continental side, and other seas have continued to trend from lower than normal to normal.
The East China Sea has expanded slightly higher than normal waters.
The huge meandering of the Kuroshio Current, which has been going on for over 7 years, has not been making a major meander, and it is a sign of its ending.
The Pacific side continues to be slightly higher than normal.
The off Sanriku area has fallen slightly below normal or as low as normal.
The seas around Hokkaido gradually became normal, and the coastal area on the Sea of Okhotsk side of Hokkaido continued to be slightly higher than normal.

The rainy season will return from the north on the weekend; the 22nd (Sun) will be heavy rain in northern Japan Next week will be rain and the heat will double [Weekly weather]

2025/06/19 12:26

Today, the 19th (Thursday) around Honshu is covered by the Pacific High Pressure from the south, and there are many sunny spots.

It is believed that the rainy season has ended in the Amami region today.
The rainy season ended 10 days earlier than usual and three days earlier than last year.

This year, the only places where the rainy season has ended by today are Okinawa and the Amami region, but
The weather and the heat around Honshu are continuing to be sunny and heated, as if the rainy season has ended.



The area around Honshu will be sunny and extremely hot throughout the day, the 20th, so please be careful of heat stroke.

However, from Saturday the 21st, the rainy season front begins to move south, and the rainy season sky is expected to gradually return.



Looking at the weekly weather map, the
front is expected to travel south through northern Japan from Saturday the 21st to Sunday the 22nd.


It will start to rain in Hokkaido from the evening of Saturday the 21st.



The atmosphere will be unstable near the front, and
It is expected that the rain will become locally stronger, and heavy rain will occur on the Sea of Japan side of northern Japan, especially on Sunday the 22nd.


As of today, Thursday the 19th, early warning information has already been announced, as there is a possibility of heavy rain on the Sea of Japan side of Hokkaido on Sunday the 22nd.


Please be careful of the latest information on rain in the future.

The front will likely stagnate on the Sea of Japan side from Monday the 23rd, and the cloudy and rainy rainy season sky is expected to continue around Honshu.



If you look at the weekly weather, you will see that the weather will likely continue to rain from Sunday, the 22nd onwards, and the Sea of Japan side of the Japan Sea of Japan.


The intense heat like this week has subsided, but even with cloudy or rain, the temperature rises to around 30 C during the day, and the heat continues to be muggy.


Because the humidity is high, you are even more likely to suffer from heat stroke.
Please continue to take great care in managing your health, such as heat stroke.

The heat continues today, the 19th, like midsummer, and Nagoya expects its third consecutive day to be extremely hot

2025/06/19 06:43

High pressure will continue to cover the Japanese archipelago, and strong sunlight is expected to shine over a wide area. As warm air continues to flow into the sky, temperatures will rise in various places today, the 19th, and it is likely that heatstroke prevention will be an essential day.

Today's highest expected maximum temperature is likely to be 37 C, which is higher than the body temperature in Nagoya and Gifu. Nagoya is expected to be extremely hot for the third day in a row, so it seems that measures against the heat will be essential.
Other forecasts include Sapporo 29c, Sendai 28c, Tokyo 33c, Nagoya 37c, Osaka 35c, and Fukuoka 32c.
Although temperatures in Tohoku and Eastern Japan have fallen slightly from the previous day, it is expected to continue to be hotter than normal in various places.



The Ministry of the Environment and the Japan Meteorological Agency have issued heatstroke warning alerts in Hyogo, Wakayama, Kagoshima (excluding Amami region), and Okinawa (the main island region of Okinawa), making this the first announcement this year in Hyogo Prefecture.


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 hot weather and try to take frequent breaks, drink water, and drink salt.
Also, use air conditioners indoors to make sure you live in a cool environment and take full advantage of heat stroke prevention indoors.

Weather today, Thursday the 19th: Wide sunlight and temperature rises. Beware of showers inland

2025/06/19 06:07

Today, the 19th (Thursday), the area around Japan will continue to be covered by high pressure, and the sunlight will reach a wide area. It looks like it will be a severe heat day. In the afternoon, you should be careful of showers inland areas.



There are many sunny spots across the country, and many summer days will be over 30 C in various places. It is likely that there will be some hot days with a maximum temperature of 35 C or higher, mainly in the inland areas of eastern and western Japan. Since some places can be dangerous, measures against heat stroke are necessary, such as hydrating and replenishing salt in good condition, and air conditioning indoors.


In the afternoon, rain clouds are expected to develop locally along the mountains and inland areas of Tohoku, eastern Japan, and Kyushu. Please be careful of changes in the sky as there is a risk of sudden heavy rain or thunderstorms.

How long will it last so much heat exceed your body temperature Beware of sudden changes in weather. The rainy season returns from the weekend, but it's getting hot and humid.

2025/06/18 13:55

Weekly Weather Forecast
#Rainy season break: How long will the extreme heat be exceeded Beware of sudden changes in weather
#Returns to the rainy season from the weekend The intense heat has subsided, but it's getting hot and humid



#Delivery during the rainy season How long will the heat exceed your body temperature Beware of sudden changes in weather
Today, the 18th (Wednesday), the Pacific High Pressure Power has increased, and the rainy season front is unclear.
In northern Kyushu, Chugoku, and Kinki to northern Tohoku, the strong sunlight shines like the rainy season has ended, and some places are already midsummer day in the morning.
In the afternoon, the maximum temperature is expected to be 37 C in Nagoya, Gifu, and Kofu, and is expected to be extremely hot and dangerously hot, exceeding your body temperature.
Please keep hydrated indoors and take measures against heat stroke, such as using an air conditioner.
Since the elderly and small children are sensitive to heat, please be proactive in encouraging them to stay hydrated.
From the evening onwards, the air condition will become unstable due to the cold air above you moving towards the Sea of Japan, the temperature rise during the day, and the humid air in the summer.
Even if it's sunny, you need to be careful of sudden heavy rain and thunderstorms, mainly inland areas and along mountains.


The rainy season will continue tomorrow, the 19th (Thursday), and there will be some places where it will be a very sunny and extremely hot day.



The highest temperature in Kyoto, Nagoya and Gifu is expected to be 36 C, and there are some areas where the temperature is dangerously high that exceeds the body temperature every day.
Also, as cold air above passes through northern Japan, the air condition will become unstable from the evening onwards, so be careful of sudden changes in the weather.

Tomorrow, the area around Japan will be covered by high pressure, and warm air will flow for this time of year.
The summer sun will shine brightly and it is expected to be a midsummer day over a wide area.
Tomorrow, the 20th (Friday) will reduce the number of dangerous hot spots that exceed body temperature, but there will be some extremely hot days.





#Returns to the rainy season from the weekend The intense heat is eased, but it is getting hot and humid
From around the weekend, the rainy season front is expected to move from the Sea of Japan to the area around northern Japan.
After that, the rainy season front will move south or north from the Sea of Japan around northern Japan until mid-week.
The weather is widely covered in clouds and unclear, and there are many areas where rain will fall, mainly in the west to the Sea of Japan side of the Japan Sea and north of Japan.
The rainy season has returned, and the number of hot days with a maximum temperature of over 35 C will decrease, but for this time of year with a maximum temperature of over 30 C, the temperature will continue to be high.
The humid and crunchy heat will continue, so please continue to be careful of heat stroke.

The rainy season begins from northern Kyushu to Tohoku, and in Okinawa the rainy season has ended more than 10 days earlier than usual. Summary of weather and temperatures (June 8th to June 14th, 2025)

2025/06/18 06:00

During this period (June 8th to June 14th), the rainy season has been announced from northern Kyushu to Tohoku, and by this period, the rainy season has been announced in all regions.
On the other hand, on June 8th, the end of the rainy season was announced in Okinawa more than 10 days earlier than usual, and, along with 2015, the earliest rainy season ended in statistical history.

This is a summary of the weather during this period (June 8th to June 14th).

#Summary of weather for this period (June 8th to June 14th)
The average temperatures were higher in Hokkaido and northern Tohoku, where there were many sunny days, and the Pacific side was much higher than normal. In Okinawa, the temperature was almost 3 degrees higher than normal in Naha because the Pacific High Pressure was often covered by the Pacific High Pressure. Many areas around northern Kyushu and Kanto, where the rainy season fronts were cloudy and rainy days were constantly cloudy.

Precency was high from Kyushu to Kanto, which was affected by the rainy season front, and in many places, the rainfall amounted to about 3 to 5 times more than normal from Kyushu to Tokai. In Kagoshima, where a linear precipitation zone occurred, the amount of rainfall recorded about three times that of the average year.

Sunday hours were high in Hokkaido, where there were many sunny days, the Pacific side of the northeastern Tohoku, and Okinawa, where the rainy season was announced, and Sakishima Islands. From Kyushu to Kanto, the days were cloudy and rainy due to the rainy season front, so sunlight hours remained much lower than normal.



#Characteristics of atmospheric pressure layout
On the 8th, the rainy season front ran from the east of Japan through Kyushu and into Hanachu. On the East Sea of the Philippines, the low-pressure area slowly moved westward. On the 9th, the rainy season front continued to stagnate in the east and west directions throughout Japan's East China. On the 10th, the rainy season front stagnated from western Japan to eastern Japan, and a low pressure system with strong cold air above it flew east through the Sea of Japan from the Korean Peninsula. On the 11th, the rainy season front continued to stagnate from western Japan to eastern Japan. Typhoon No. 1 appears in the South China Sea. Typhoon No. 1 was the fifth-latest occurrence ever since statistics began. On the 12th, a high pressure system advanced through the Sea of Japan, and the rainy season front moved a little further south than the previous day. A tropical cyclone emerged in the East Sea of the Philippines. On the 13th, the area around Honshu was covered by high pressure, and the rainy season front was directed far east from the East China Sea through Kyushu and south of Shikoku, leading to Japan's far east. On the morning of the 14th, kink on the rainy season front began to form a new low pressure system near the Korean Peninsula, causing the rainy season front to be obscure. The low pressure system proceeded northeasterly through the Sea of Japan with a front, and the Pacific high pressure system stagnated in the south of Japan.

#Precture
On the 8th, heavy rain in southern Kyushu near the front line. Rainfall of 49.0mm was observed for an hour on Yakushima. The rainy season began in northern Kyushu and Shikoku, and in Okinawa it was announced that the rainy season would end on the 13th, earlier than usual, and the 12th earlier than last year. On the 9th, a linear precipitation zone occurred in Kagoshima Prefecture. Record heavy rainfall in Ibusuki City, Kagoshima Prefecture is 345.5mm daily rainfall. The rainy season has begun in Chugoku, Kinki and Tokai. On the 10th, heavy rain began, mainly in western Japan due to the influence of the rainy season front. The rainy season begins in Hokuriku and Kanto. On the 11th, due to the rainy season front, extremely heavy rain was observed in the Shikoku region, including 62.0mm/h in Aki City, Kochi Prefecture and 57.5mm/h Hiwasa, Mihama Town, Tokushima Prefecture. In Ibusuki City, Kagoshima Prefecture, the precipitation amounted to 514.0mm for 72 hours. On the 12th, the rainy season front increased the rain, mainly in western Japan, with heavy rain in Nishikai City, Nagasaki Prefecture and Omuta City, Fukuoka Prefecture. On the 13th, rainfall increased in Kyushu, Chugoku, Shikoku, and other places near the rainy season front. In the Sakishima Islands, heavy rain was hit by Yonaguni Island due to the effects of tropical cyclones. On the 14th, heavy rain occurred in Shikoku due to the effects of low pressure and warm, humid air heading towards the front. The rainy season begins in the northern and southern parts of Tohoku.

#Temperature
On the 8th, clouds spread from Kanto to west due to the rainy season front, and in southern Kyushu, the temperatures dropped significantly from the previous day due to the increased rainfall. On the 9th, there were many places with temperatures lower than the previous day, from western Japan to eastern Japan's Pacific side. In northern Japan, the temperature was higher than normal, and in Sapporo, 29.4 C was observed. On the 10th, temperatures were low in western and eastern Japan due to the rainy season front, and temperatures were higher than normal in Hokkaido to northern Tohoku. On the 11th, temperatures in western and eastern Japan fell due to the rainy season front, with the highest temperature in central Tokyo at 23.1 C, similar to mid-May. Many of the Nansei Islands have midsummer days, and many of the temperatures have recorded the highest temperature this year. On the 12th, the temperature dropped on the Sea of Japan side from northern Japan to Hokuriku due to the effects of cold air from the sea. On the 13th, temperatures were high in southern Kyushu and Okinawa, on the south side of the front line, and Maeda, a liver genus in Kagoshima Prefecture, recorded a temperature of 34.3 C. On the 14th, temperatures in western and eastern Japan did not rise much due to rain. The sun was in northern Japan, with a summer day of 28.7 C in Asahikawa and 26.9 C in Sapporo.

Record of extreme heat at 65 locations dangerous heat continues tomorrow the 18th

2025/06/17 20:46

Today, the 17th (Tuesday), the area around Honshu was covered by high pressure, and warm air, which is above 21 C, flowed into the air about 1,500m above eastern Japan. Additionally, due to the strong sunlight approaching the summer solstice, temperatures rose early in the morning, causing record-breaking heat in Kanto, Koshin and Tokai.



In Kofu City, Yamanashi Prefecture, 38.2 C was observed, making it the hottest point in the country. In addition, the highest temperatures in the top 10 locations were above 37 C, with 37.7 C in Kamisatomi, Gunma Prefecture and 37.6 C in Shizuoka, making it dangerous heat.
In major cities, the temperature reached 34.7 C in Sendai, 34.8 C in central Tokyo, and 35.4 C in Nagoya, making it a very hot day.
Until 6pm today, the 17th, the number of observation points on midsummer days exceeding 30 C, and the number of observation points on extremely hot days exceeding 65.

#Maximum temperature in major cities
Sapporo: 28.1c (over the hottest season)
*Sendai: 34.7c (over the hottest season)
*Tokyo: 34.8c (over the hottest season)
*Nagoya: 35.4c (over the hottest season)
*Osaka: 33.4c (regular to late July)
*Fukuoka: 33.4c (regular to mid-July)
*Naha: 32.1c (regular to mid-July)
*: Highest temperatures this year




Tomorrow, the 18th (Wednesday), the Pacific high pressure forces around Honshu are still strong, and it is expected to be covered in warm air from the south. The highest temperature forecast for tomorrow is 37 C in Nagoya and Gifu, 36 C in Kyoto and Nara, and there are also some forecasts for extreme hot days in Tohoku, and 35 C in Fukushima and Yamagata. In Tokai, Kinki and Kyushu, heat stroke warning alerts have been issued, and heat indexes are high, especially in western and eastern Japan, and the heat index can be dangerous.



Please try to stay hydrated and salty. If you are spending time outdoors, take a reasonable break, and even if you are spending time indoors, use air conditioning to prevent heat stroke.

[The earliest hottest day in history] It will be over 37 degrees Celsius from 10am, and it will be even hotter tomorrow, so be careful of heat stroke!

2025/06/17 11:28

Today, Tuesday, June 17th, the area around Honshu is set to the south with a high pressure system and a low pressure system in the north with a low pressure system
South and North and Low.

The pressure arrangement of "South High North Low" is a pattern in which warm air flows from the south towards the low pressure in the north.



The highest temperature until 11am today is
: 37.7c
: Shizuoka City, Takasaki City, Gunma Prefecture: 36.4c
: Fuchu City, Tokyo: 35.8c
: Ushiku City, Chiba Prefecture: 35.7c
: Ebina City, Kanagawa Prefecture: 35.3c
: Kuwana City, Mie Prefecture: 35.3c
: Hachioji City, Tokyo: 35.2c
: Nerima Ward, Tokyo: 35.2c
: Maebashi City, Gunma Prefecture: 35.2c
: 35.2c
: Maebashi City, Gunma Prefecture: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2c
: 35.2


/B also, in Ushiku City, Chiba Prefecture, Ebina City, Kanagawa Prefecture, and Hachioji City, Tokyo
/B, it is the earliest hottest day in statistical history.




Pressure arrangement continues tomorrow, the 18th, with the north and north (low) continuing, and
Choice is expected to continue to remain high.

The expected maximum temperature for tomorrow will be 37c in Nagoya and Gifu, 36c in Kyoto and Nara, and 35c in Fukushima, Fukui, Takamatsu, etc.
The temperature will be even higher for tomorrow.

The temperature will be less likely to drop at night, and from tonight onwards there will likely be many tropical nights.

/be careful not only during the day but also during the night heat stroke.




In addition to hydrating frequently,
Use an air conditioner properly, and use a hat or parasol outdoors,
Please choose the shade and walk in so that it is not exposed to direct sunlight.


Four foods with a balanced nutrition and drink a glass of water at night before going to sleep is also effective in preventing heatstroke.


As elderly and infants are even more likely to suffer from heat stroke,
Please also ask people around you to talk to each other.

Temperatures rise in various places: inland Kanto, some areas approaching 40 degrees

2025/06/17 08:07

In Hokkaido and western Japan, rain will fall mainly in the morning due to the effects of fronts and humid air, but it is expected to gradually recover in the afternoon, with temperatures likely to rise in various places.

Today, the 17th (Tuesday), the Pacific High Pressure will strengthen its strength, and there are some areas where it will be extremely hot, with the Kanto and Tokai region exceeding 35 degrees.
Could temperatures near 40 degrees be near inland areas, especially in the Kanto region, and if it becomes a hot day in Tokyo too, it could potentially break the record (June 22, 2022).



Heat stroke alerts have also been issued in Chiba, Ibaraki, Wakayama, and Kagoshima prefectures.
Today, please stop exercising outdoors and take frequent breaks, drink water, and drink salt.
Also, please make sure to stay in a cool environment with an air conditioner or similar.



On the other hand, the atmosphere conditions in the Kanto region are unstable in the afternoon, with the probability of
lightning increasing, especially in the north. Be careful of sudden rain with lightning or severe gusts of winds such as tornadoes.






























































/

Former Typhoon No. 1 approaches Japan, even on extremely hot days this week, the temperature is quite high every day, and it's humid and humid.

2025/06/16 13:17

#Former Typhoon No. 1: Incorporated into the rainy season front and approaches Japan
#Not the end of the rainy season, it's not the end of the rainy season, but the rainy season is closed, beware of sudden changes
#Pacific high pressure forces are increasing Even on extremely hot days, even hotter and hot



#Former Typhoon No. 1: Incorporated into the rainy season front and approach Japan
Today, the 16th (Monday), the rainy season front extends from the continent to the East China Sea, and the low pressure from former Typhoon No. 1 was Incorporated into the rainy season front and is moving northeasterly through the East China Sea on the front.
Until tonight, the low pressure system of former Typhoon No. 1 is expected to change shape and move to western Japan.
In western Japan, warm and humid air will flow towards the front, making the atmosphere extremely unstable.
There is a risk of heavy rain, with local lightning, especially in Kyushu.
Please be careful and be careful of landslides, flooding of low land, flooding of rivers and flooding.





#The rainy season is closed rather than the end of the rainy season. Beware of sudden changes in weather
The Pacific high pressure forces will increase in the middle of the week, and activities on the rainy season front are expected to weaken.
The rainy season front will be unclear, and the strong sunlight will shine through Kyushu to Tohoku, just like the rainy season has ended.
However, due to the effects of warming during the day and humid summer air, the atmosphere becomes unstable, and even if it is sunny, you need to be careful of sudden heavy rain and thunderstorms.
From around the weekend, the front will move from the Sea of Japan to the area near northern Japan, and the weather will be covered in wide clouds, causing uneven weather.
It is expected that there will be some areas where rain will fall, mainly in the West to East Japan Sea of Japan side and north Japan.



#Pacific high pressure forces are increasing Even on extremely hot days, it's even more humid
This week, the Pacific high pressure forces that bring about the summer heat will increase, so the area around Japan will be covered in warm mid-summer air.
Temperatures are high nationwide, and it is expected that the days around Honshu will continue to last considerably higher than normal.
There may be some hot days with a maximum temperature of 35 C or higher.
The estimated maximum temperature for the 18th (Wednesday) in central Tokyo is 34 C, but if the temperature rises more than expected and it becomes a hot day, it is likely to be the earliest record of the hottest day ever recorded.
The extreme heat during the rainy season is extremely humid and humid, so it can be dangerous.
Please be sure to take full precautions against heatstroke.