The cherry blossoms are heading north through the Tohoku region; on the 15th, somei Yoshino flowers have been announced in Akita.

2025/04/15 21:05

In western and eastern Japan, many places have passed their peak in bloom. The cherry blossom flowering front is currently slowly moving north through the Tohoku region, and today, the 15th, the flowering of Somei Yoshino was announced in Akita.
It bloomed two days earlier than usual and five days later than last year.



The cherry blossom front continues northward, and next week we will receive a news report on the blossoming of the cherry blossoms across the Tsugaru Strait and Hokkaido. The cherry blossoms blooming date in Sapporo is expected to be around April 23rd.

In Hokkaido, cherry blossoms will be in full bloom in many areas around Golden Week, and cherry blossom viewing will be available for enjoyment.

[A long impact on cold vortex] The atmosphere is extremely unstable tomorrow. The heat approaches midsummer day in Kanto on weekends. Rain again after the weekend.

2025/04/15 12:47

The effects of the cold vortex will continue, and the atmosphere will be extremely unstable by tomorrow, the 16th (Wednesday).
It is expected that there will be some areas where rain will fall again from the weekend to the end of the week due to the effects of low pressure and front lines.
There is also the warm air flowing towards the low pressure system, and in Kanto it will be hot on the midsummer day on weekends.

#The effects of the cold vortex continue. The atmosphere is extremely unstable tomorrow



Today, the 15th (Tuesday), a strong cold vortex is moving northeasterly through the Sea of Japan at around 5,500 meters above the sky, at a temperature below -30 C.
The low pressure system that corresponds to the cold vortex will develop and move northeasterly through the Sea of Japan.
And then, tomorrow, the 16th (Wednesday), it is expected to pass through Hokkaido and head towards the Sea of Okhotsk.
Due to the effects of warm, humid air towards the low pressure and strong cold air above, today the 15th (Tuesday) will be in west to eastern Japan, and tomorrow the 16th (Wednesday) will be in the atmosphere, mainly in eastern Japan.
Please be careful of sudden heavy rain, lightning, gusts of wind, and hail.


Also, due to the approaching low pressure system, the Hokuriku and the Sea of Japan side will be windy, mainly on the coastal areas, until the morning of Wednesday the 16th.
Even on track and field, a 30-meter wind is expected to blow instantly.
Beware and beware of strong winds.



The effects of the cold vortex are expected to finally end by the 17th (Thursday), but there will be some areas where rain will remain in Hokkaido.
On the Friday the 18th, clouds will likely spread due to the influence of the valley of atmospheric pressure.


#Weekend to the end of the week again
Due to the influence of the valley of atmospheric pressure on the 19th, there are some areas where rain will fall in Tohoku and Hokkaido in the evening.
Also, from the evening of Saturday the 19th to the beginning of the week, a low pressure system with a front will pass through the area around Japan, causing the weather to collapse from the west.
Rain will begin in Okinawa and Kyushu on the night of the 19th (Sat), and on the 20th (Sun), rain clouds will move east, and there will be times when rain will be temporarily falling between Okinawa and Hokkaido.
On the 21st of the week (Monday), there are some areas where rain will remain in Hokuriku and northern Japan.






#Weekend The weather is as good as early July in the Kanto region. Early heat stroke prevention measures
From Thursday the 17th onwards, the temperature will likely be higher than normal.
In particular, warm air will flow towards the low pressure system passing around Japan from the weekend to the beginning of the week, and the temperature is expected to be significantly higher than normal.
On Saturday, the 19th, the highest temperature is expected to be 29c in Kumagaya, and the weather will be as cheerful as early July.
There is a heat approaching midsummer day inland in the Kanto region, and as it is a time when the heat is unused, please take early measures to prevent heatstroke.

Even though it's sunny in western Japan today, the temperature is low, and the second half of the week is full of sweaty weather everywhere.

2025/04/15 06:37

Today, the 15th, rain will be over a wide area due to the effects of a low pressure system with strong cold air above.
In western Japan, there are some areas that rain until the morning, but the sunlight is expected to return in the afternoon. However, even when the sun reaches the temperature, the temperature will slow down, and in many cases it will be lower than the previous day. The temperature is low for this time of year, so it would be a good idea to wear something when you're out.


Even in eastern and northern Japan, there are many places with temperatures that are typical of this season. Please bring a large umbrella to prevent it from getting wet in the rain.



The effects of cold air are expected to be until tomorrow (16th), with warm air likely to flow from the south towards the second half of the week, and temperatures will rise nationwide.
In central Tokyo, the temperature is steadily rising from Saturday the 19th, and the highest temperature on the 19th is expected to be 27 C, making it likely to be a cheery early summer.
In addition, there will be 27 C in Nagoya and Osaka and 26 C in Fukuoka, with more summer days expected to occur in various places.
Please also take measures against heat stroke when exercising outdoors.
Even in northern Japan, such as Sapporo and Sendai, there are many days when the temperatures are high for this time of year, making it a comfortable experience.


Also, the daily experiences vary greatly across the country, so please be careful to take care of your health so that you don't get sick.

Weather today, Tuesday the 15th: Unstable atmosphere conditions in various places. Beware of sudden heavy rain and thunderstorms

2025/04/15 06:10

Today, the 15th, a low pressure system with strong cold air in the sky is expected to travel through the Sea of Japan. Atmospheric conditions may become unstable in various places, causing sudden thunderstorms, so caution is required.



Please be careful as it is likely to rain in western Japan, especially in the morning, and the falling area will increase locally, leading to thunderstorms. The weather will improve in the afternoon and there will be many places where the sun will return.
There hasn't been any disruption in the Nansei Islands, and it looks like it will be a nice day.


Rain is expected to increase in Kanto and Tokai, mainly in the morning. Please bring a large umbrella when commuting to work or school. It looks like there will be some areas where the sun will be exposed in the afternoon.


It looks like it will be a day where rain will likely fall in northern Japan and Hokuriku.
There is a risk of thunderstorms everywhere, so be careful of lightning strikes, gusts of wind, hail, etc. In Hokkaido, it seems that many places start to rain from the evening. When you go out, please bring rain gear even if it's not raining.

Yellow sand from mainland China: cold vortex attacks, extremely unstable air condition on Wednesday. Weekend - rain again at the end of the week

2025/04/14 12:51

Yellow sand will fly to the next day, the 15th (Tuesday).
Also, the air condition will become extremely unstable as of Wednesday the 16th due to the invasion of a cold vortex. You need to be careful of sudden changes in the weather.
There will be some places where it will rain again on the weekend until the end of the week.

#Large-scale yellow sand from mainland China will fly from tomorrow, the 15th (Tue)



Yellow sand is expected to be expected in a wide area of the Nansei Islands to western Japan today, the 14th (Mon).
On tomorrow, the 15th (Tuesday), yellow sand will fly mainly through the Nansei Islands.
Visibility (a distance visible in the horizontal direction) is expected to be less than 10 kilometers, and in some places, visibility is expected to be less than 5 kilometers.
There is a possibility that there will be an impact in some areas, such as dirt on cars and laundry.
Please also be careful as traffic disruptions may occur if your visibility is less than 5 kilometers.
If you have hay fever or respiratory diseases, your symptoms may worsen, so please take full precautions.

#Cold whirlwinds attack! ! Beware of sudden changes in weather - slow movement and long effects



Cold vortex (a low pressure system with cold air above) will head south today, the 14th (Monday), around the Korean Peninsula, and will proceed from tomorrow, the 15th (Tuesday) to the 16th (Wednesday), towards the Sea of Japan and north Japan.
There is a strong cold air that flows around 5,500 meters above the sky for this period below -30 C, and warm, humid air is expected to flow into the low pressure system.



Because cold vortices are slow, the air condition will be extremely unstable in Okinawa and western Japan tomorrow, the 15th (Tuesday), and in eastern and northern Japan tomorrow, the 16th (Wednesday), due to the effects of warm, humid air near the ground and the cold air above. You need to be careful of sudden changes in the weather.
Please be careful of sudden heavy rain, lightning, gusts of wind, and hail.
Also, the winds towards the low pressure system will increase, and tomorrow, the 16th (Wednesday) will be rough in the center of northern Japan, close to the low pressure system.

The effects of the cold vortex are expected to finally end by the 17th (Thursday), but on Friday the 18th (Friday), there will be some areas where clouds will spread due to the effects of the valley of atmospheric pressure.





#Weekend to the end of the week again
A low pressure system with a front is expected to pass around Japan.
On Saturday, the 19th, rain will begin to fall from the west, and on Sunday, the 20th, rain clouds will move east, and there will be times when rain will be temporarily falling between Okinawa and Hokkaido.
On the 21st of the week (Monday), there are some areas where rain will remain in Hokuriku and northern Japan.

#Unseasonably warm and heat
On tomorrow, the 15th (Tuesday), the temperature in western Japan will likely be lower than normal, with many places with a maximum temperature of around 16c.
After Thursday the 17th, the temperature is expected to continue to be higher than normal or significantly higher days.

Yellow sand flying from the continent, be careful of worsening outlook and worsening respiratory diseases.

2025/04/13 19:33

Looking at the weather satellite image (true color reproduction image) today, the 13th at 5pm, we can see a light brown, blurred haze hanging over the western Sea of Japan, the Korean Peninsula, and the East China Sea.
This is yellow sand that flew from mainland China, and is expected to fly widely, mainly in western Japan and the Nansei Islands from tonight to tomorrow, riding on the westerly winds above.



If you look at the predictions for yellow sand at 9am tomorrow, it is expected that high concentrations of yellow sand will fly in Honshu, mainly in Kyushu, Chugoku and Shikoku regions. In some places, the horizontal visibility (a distance that can be seen in the horizontal direction) may be less than 5km. If your visibility is less than 5km, traffic may be impaired, so be careful. Also, since sand will become more noticeable on the laundry, don't dry your laundry outside, just dry it indoors.
In western Japan, the atmosphere may become unstable before noon and cause rain or thunderstorms, so it is likely that the rain will be mixed with sand. Be careful of dirt adhering to cars and other items.


The yellow sand gradually flies to eastern Japan, and from tomorrow, the 14th to tomorrow, to the 15th, the sky may become fainter in the Kanto and Tokai regions as well.


In addition to pollen, yellow sand also comes flying, which can worsen symptoms for sensitive people. If you have hay fever or respiratory diseases, it is best to take proper measures such as masks on the 15th.

The atmosphere is extremely unstable, mainly in western Japan; fears of sudden thunderstorms, lightning strikes, gusts of wind, hail, etc.

2025/04/13 18:05

Tomorrow, the 14th, the atmosphere will be extremely unstable, especially in western Japan.
Extremely cold air flows below -30 C, around 5,500m above the air, which is below -30 C, and warm, humid air flows into the ground low pressure system, moving around the Korean Peninsula, making the atmosphere extremely unstable.



Looking at the probability of lightning fire at 3pm tomorrow, it is predicted that thunderclouds will be particularly likely to develop in western Japan. In Kyushu, there are areas with a dark purple color that shows a thunderbolt probability of over 90%, and the possibility of sudden rain or thunderstorms is expected to be very high.
This is expected to occur in Shikoku, the Sanin region, the inland Kanto region, and the coastal area on the Tohoku Pacific side, as well as during the time when the probability of thunderclouds developing due to the effects of cold air above will increase.

In western Japan, you need to be careful of changes in the sky pattern. Be careful of sudden rain, thunderstorms, lightning strikes, and tornadoes that can intensify in a short amount of time. If you notice any symptoms such as the sky getting dark or thunder roaring, try to ensure safety by evacuating to a sturdy building.
Also, hail and hail may fall, so please be careful when managing your crops and agricultural facilities.

Temperatures drop in various places from the previous day; Naha is in the midwinter temperature.

2025/04/13 06:30

Today, the 13th, rain is expected to fall over a wide area due to the effects of low pressure and front lines. There is little sunlight, and in many places the temperature is likely to be lower than yesterday.
Also, as cold air flows from the low pressure system and west side of the front line, temperatures do not rise during the day, and Naha's highest temperature is expected to be 18 C, the temperature is expected to be around the same level as late January.
We expect the central Tokyo area to be 15 C 6 C lower than the previous day. It seems like it's easier to spend time when going out with something to wear.

#Expected maximum temperature (relevant season)
+Sapporo 16c (as in early May)
+Sendai 11c (as in late March)
+Tokyo 15c (as in late March)
+Nagoya 17c (as in late March)
+Osaka 17c (as in late March)
+Kochi 20c (as in normal)
+Fukuoka 17c (as in late March)
+Naha 18c (as in late January)

Weather today, Sunday the 13th: Rain over a wide area; west Japan is also careful of yellow sand as weather recovers.

2025/04/13 06:17

Today, the 13th, a low pressure system accompanied by a front is expected to move eastward along the southern coast of Honshu.



Rain will likely fall in Western Japan and the Nansei Islands, mainly in the morning.
Caution is required as the falling area will be strengthened and there is a risk of heavy rain or thunderstorms on the Pacific side.
There are many places to stop in the afternoon, and the sunlight is about to return. However, please be careful when drying out laundry or other items outside after the rain, as yellow sand is expected to fly.


In Eastern Japan is likely to be a day when umbrellas will be useful from the morning. Please be careful as this will also increase locally and may cause thunderstorms. It is expected that many places in Kanto will start to rain from midnight. When you go out, don't forget to bring rain gear even if it's not raining.


Northern Japan is probably full of clouds and unclear sky.
In Tohoku, many places begin to rain from the night, and in early areas, it is expected that it will start to rain from the afternoon. The later you get home, the better it is to prepare rain gear.

[Okinawa Region] Beware of front-line passing, lightning strikes, gusts of wind, and sudden heavy rain

2025/04/12 13:25

The East China Sea has a low pressure system with a front that moves east.
In the Okinawa region, the front will approach and pass from today, the 12th to tomorrow, the 13th, and the atmosphere is expected to become extremely unstable.
Be careful of heavy gusts of wind such as lightning strikes and tornadoes, and sudden heavy rain.
Depending on the degree of rain cloud development, there is a risk of heavy rain at the level of warning.



[Rain forecast]
The forecast for one hour rainfall on the 12th is high,
Okinawa Mainland Region 40mm


Okinawa Mainland Region 40mm
Sakaishima Islands 30mm


The forecast for 24 hours from 6am on the 12th to 6am on the 13th is high,
Okinawa Mainland Region 120mm



[Disaster Prevention Issues]
In the Okinawa main island region, there are areas where heavy rain will fall from the 12th to the 13th.
Depending on the degree of rain cloud development, there is a risk of heavy rain at the level of warning.
Please be careful of landslides, flooding of low land, and flooding of rivers.


In the Okinawa main island region and the Sakishima Islands, be careful of severe gusts of winds such as lightning and tornadoes under the cumulonimbus clouds that developed from the 12th to the 13th, and sudden heavy rain.
If there are signs of developing cumulonimbus clouds approaching, try to ensure safety by moving inside the building.
Please note that the winds in the Okinawa main island region and the Sakishima Islands are expected to rapidly change from south to north as the front passes from the 12th to the 13th.