Tomorrow, the 30th (Saturday): Be careful of strong winds and thunderstorms in northern Japan

2026/05/29 22:57

A developing low pressure system is moving northeast over the Sea of Okhotsk.
Today, the 29th (Friday), westerly winds are increasing mainly in Hokkaido and the Tohoku region.

The daily maximum instantaneous wind speed was a fierce wind of 30.3m/s at Onagawa, Onagawa-cho, Oshika-gun, Miyagi Prefecture, at 14:45, and an extremely strong wind of 27.1m/s at 17:56 at Rausu, Rausu-cho, Menashi-gun, Nemuro, Hokkaido.



In northern Japan, there is a large pressure gradient between the low pressure and the high pressure overhanging from the west, and strong winds are expected to continue into tomorrow, the 30th (Saturday).
When going out, be careful of flying objects and be aware of the impact on transportation.



Also, in northern Japan, the atmospheric conditions are expected to be very unstable, with temperatures below -21c expected to flow in at an altitude of approximately 5,500 meters. Cumulonimbus clouds will develop locally, and there will likely be some places where thunderstorms will occur.
Please be careful of thunderstorms, tornadoes, strong gusts of wind, and sudden heavy rain through the evening of tomorrow, the 30th (Saturday). Also, be careful of damage to crops and agricultural facilities due to hailstorms.

If you are participating in outdoor activities, please take every precaution to ensure your safety by moving inside a sturdy building if there are signs of a developed cumulonimbus cloud approaching.

Weather across the country on Saturday and Sunday: Many places are sunny, be careful of the heat

2026/05/29 18:59

On Saturdays and Sundays, it will be sunny in many places across the country, and the temperature will rise sharply, with some places becoming as hot as midsummer. Please be careful of heat stroke.



Saturday and Sunday will be covered by a mobile high pressure system, and most places across the country will be sunny. During the day on the 30th (Saturday), there will be a lot of clouds in Hokkaido and northern Tohoku, and there is a possibility of rain showers, but there is little chance of rain in other areas.

The temperature rises rapidly during the day, and in many places it will be a midsummer day with temperatures exceeding 30c. On the 31st (Sunday), temperatures are expected to reach 33c in Nagoya. It will be as hot as July, with temperatures reaching 29c in Sendai and 24c in Sapporo.


Unlike midsummer, the humidity is low and the heat is crisp, but the sun is strong during this time, so be sure to wear a parasol or hat to protect yourself from the heat and UV rays.
Also, be sure to take adequate precautions against heatstroke, such as drinking plenty of water before you get thirsty.

[Okinawa - Typhoon approaching with strong force] Prepare for typhoon over the weekend due to warning level heavy rain and strong winds (Commentary: Weather forecaster Atsuko Miyake)

2026/05/29 15:03

A strong typhoon is expected to approach the Okinawa region early next week.



Typhoon information as of 9 a.m. today, Friday, the 29th.

Typhoon No. 6 (Chammy) is located in the sea east of the Philippines and is heading north.
The central pressure is 998 hPa, which is not very strong at the moment, but
after this, it is expected to move northward as it passes through the warm sea surface.


In particular, it is expected to become a "strong force" and increase to 970hPa on the 31st (Sunday).
Then, it continues to develop and moves south of Okinawa, dropping the central pressure to 960hPa on
1st (Monday).

It is expected to maintain its strong strength and approach the Okinawa region over the 2nd.


In Okinawa, waves are expected to be high at sea even before the typhoon approaches.

From the 31st (Sunday), the waves will be high in the Okinawa region, so
Please stay away from the sea.



Rain and wind forecast.
In the afternoon of the 1st, rain clouds are expected to begin to form over the main island of Okinawa.

This prediction is a model prediction.
Please note that there is a possibility that the weather will deviate a little further west than this forecast.

In the afternoon of the 1st (Monday), the rain will become heavier and the wind will become stronger.

Rain clouds from the typhoon itself are expected to begin to accumulate by the 2nd (Tuesday).

The active rain clouds are expected to dissipate in the afternoon of the 2nd (Tuesday), but the windy conditions are likely to continue into the night.




Heavy rain warning may be announced. First on Monday the 1st, then on Tuesday the 2nd.



Additionally, there is a high probability that storm warnings will be announced in the Okinawa main island region from the 1st to the 2nd.
Also, there is a possibility that a storm warning will be issued in the Miyakojima region on the 1st (Monday).

The way this warning is communicated has changed from today.
As new disaster prevention weather information,
River flooding, heavy rain, landslides, and storm surges are now announced with levels assigned.

For example, if there is a heavy rain warning, we will notify you as a "Level 3 heavy rain warning."

Also, a new danger alert has been installed at level 4.
, so if there is a heavy rain danger warning, it will be announced as a "Level 4 heavy rain danger warning".
For more information, see our topics.




Also, I would like everyone in the Okinawa region to prepare for the typhoon this weekend.
It will be safe if you take precautions against storms, as well as power outages and water outages. Also, be sure to check your evacuation route now in case of an emergency.




is the weekly forecast for the Okinawa region.

Tomorrow, the 30th (Saturday), it will be sunny in many places.

However, the effects of the typhoon are expected to start from the 31st (Sunday), and rain is expected to begin in Minamidaito.

From the 1st (Monday) to the 2nd (Tuesday), the Okinawa region will experience heavy rain due to the
typhoon.

Please be careful of heavy rain, strong winds, and high waves.
Then, on the 5th (Friday), a low pressure system and front will approach again, causing widespread rain.

[Typhoon No. 6] Approaching Okinawa with "strong force", possibly approaching and making landfall on Honshu (commentary: weather forecaster Atsuko Miyake)

2026/05/29 14:10

Typhoon No. 6 is likely to be the first typhoon this year to come very close to Honshu.



Typhoon information as of 9 a.m. today, Friday, the 29th.

Typhoon No. 6 is currently in the sea east of the Philippines and heading north.
The central pressure is 998 hPa, so it is not very strong, but after this, it is expected to continue to grow as it moves northward over the warm sea surface.

On the 31st (Sunday), the central pressure will drop to 970hPa, and it is expected to become a "strong force."
Furthermore, it is likely to increase to 960 hPa south of Okinawa on the 1st (Monday).
There is a risk that they will remain strong and approach the Okinawa region.


Then, it will pass through the East China Sea on the 2nd (Tuesday) and may approach the Kyushu and Shikoku regions without weakening much.

If it passes along the north side of this predicted course, it may also make landfall in the Kyushu and Shikoku regions.

This time, there is a possibility that the rain will become heavier even before this typhoon approaches.



Rain and wind forecast.

Before the typhoon approaches, the winds will be strong in Okinawa from the 31st (Sunday).
The waves are expected to become high at sea from around the 31st.
Please stay away from the sea.

In the afternoon of the 1st (Monday), rain clouds will gather over Okinawa and Amami.
Furthermore, a front is expected to be on the north side of the typhoon, and rain is likely to start in places like Kyushu at night.

On the 2nd (Tuesday), rain clouds from the typhoon itself will begin to gather
In Okinawa and Amami, both the rain and wind are likely to become stronger.
It looks like the weather will be very stormy.

Please note that this rain and wind forecast is based on one model.
The center of the typhoon may be closer to the west or east than expected.



This model predicts that rain will become heavier in the Kyushu and Shikoku regions from
2nd (Tuesday) to 3rd (Wednesday).

There is a possibility that the rain will continue for a long time even before the rain clouds of the typhoon itself approach.
We need to be on guard against heavy rain.

On the 3rd (Wednesday), it is expected to start raining in eastern Japan.



As of today, the 29th (Friday), heavy rain warnings are likely to be announced around
Honshu around the 3rd (Wednesday).
There is a possibility that heavy rain warnings will be announced over a wide area from Kyushu to Kanto region.



Storm warnings may be announced from Okinawa to the Kyushu and Shikoku regions on the 2nd (Tuesday) and
on the 3rd (Wednesday) from Kyushu, Shikoku, and the Kinki region.




The method of announcing warnings has changed from today, Friday the 29th.

Heavy rain warnings can be assigned a level. For example, a heavy rain warning would be a level 3 heavy rain warning, and a
level 4 would be a heavy rain danger warning.
The name will change, so please be careful.



A typhoon will be approaching Okinawa and western Japan in the future, so please prepare early.
Let's prepare for the typhoon and take measures against the storm this Saturday and Sunday.

Let's check if there are any dangerous places around the house,
, and check evacuation routes.



, we will look at the weather in various places.
It will be sunny in many places on Saturdays and Sundays.
In western and eastern Japan, there are many places where the temperature exceeds 30 degrees and it is midsummer.
Let's take proper measures against the heat.

Okinawa will experience heavy rain from the 1st to the 2nd.
Also, there is a possibility of heavy rain and strong winds in western and eastern Japan from the 2nd to 3rd.
Please pay attention to the latest information.

[Latest Typhoon Track Forecast] Typhoon No. 6 will hit Okinawa and Amami directly with strong force. Warning-level heavy rain, strong winds, and high waves are also expected on the Pacific side of western and eastern Japan.

2026/05/29 13:55

Typhoon No. 6 is expected to hit Okinawa and Amami directly from around June 1st (Monday) to June 2nd (Tuesday), with strong winds and strong winds.
Okinawa and Amami will experience heavy rain and storm surge, depending on the path of the typhoon,
warning-level heavy rain and storm surge.
It is expected to approach western and eastern Japan after the 3rd (Wednesday), so please keep an eye out for the latest information.



#Typhoon No. 6 Today, May 29th (Friday) 9:00 a.m.
Center location East of the Philippines
Movement North-northwest 15 km/h
Central pressure 998 hPa
Maximum wind speed 18 m/s (near the center)
Maximum instantaneous wind speed 25 m/s
Strong wind area 440 km (Area)

As of 9:00 a.m. today, the 29th (Friday), Typhoon No. 6 is moving north-northwest in the east of the Philippines, accompanied by strong winds.
Typhoon No. 6 is moving north-northwest in the east of the Philippines as it continues to develop, and will become a strong force on the 31st (Sunday) tomorrow, when it will reach the south of Okinawa, accompanied by strong winds.
It is expected to approach Okinawa and Amami from around June 1st (Monday) to June 2nd (Tuesday).
It will change course to the northeast in the East China Sea, and will head off the coast of Shikoku on the 3rd (Wednesday).
Then, Typhoon No. 6 is expected to move from the south of Japan to the east of Japan until the 5th (Friday).



#Will it hit Okinawa/Amami directly
There is a risk of warning-level high waves in Okinawa from the afternoon of the 31st (Sunday) tomorrow to June 3rd (Wednesday).
Okinawa is likely to experience warning-level storms and high waves from June 1st (Monday) to June 2nd (Tuesday), as well as warning-level heavy rain and storm surge.
Amami is likely to experience warning-level high waves from June 1st (Monday) to June 3rd (Wednesday), and warning-level storms and high waves on June 2nd (Tuesday).
On the 2nd (Tuesday), there is a risk of warning-level heavy rain and high tides.







#Western Japan and East Japan Pacific side also likely to be rough
In southern Kyushu, there is a possibility of warning-level high waves from June 1st (Monday) to June 3rd (Wednesday), warning-level heavy rain and strong winds on June 2nd (Tuesday), and warning-level stormy winds and high waves on June 3rd (Wednesday).
From the 2nd (Tuesday) to the 3rd (Wednesday), there is a risk of warning-level heavy rain, strong winds, and high waves in other parts of western Japan, warning-level heavy rain and high waves in Mie Prefecture, and warning-level heavy rain and high waves in Aichi Prefecture, Shizuoka Prefecture, and the Kanto coast on the 3rd (Wednesday), and warning-level heavy rain in Yamanashi Prefecture, Saitama Prefecture, and northern Kanto.
It is likely that the typhoon will have a widespread impact, so it is a good idea to pay close attention to the latest information and prepare for the typhoon by the end of this week.

[Typhoon Information] Typhoon No. 6 continues to grow and move northward. There is a risk of stormy weather in Okinawa and Amami by the end of the week. What will be the impact on Honshu

2026/05/29 07:30

As of 6 a.m. today, Friday, the 29th, Typhoon No. 6 is moving north-northwest over the eastern seaboard of the Philippines.

#Typhoon No.6 29th (Friday) 6:00 a.m.
==================
Center location: East of the Philippines
Traveling speed: North-northwest 15km/h
Central pressure 998hPa
Maximum wind speed 18m/s (near the center)
Maximum instantaneous wind speed 25m/s
==================



Typhoon No. 6 is expected to continue moving northward while intensifying. It is expected to be accompanied by stormy winds around the 30th, and to reach strong winds with maximum wind speeds of 35 m/s near the center on the 31st.
Typhoon No. 6 is expected to move through the East China Sea from around the 1st (Monday) to the 2nd (Tuesday) of the new week, approaching Okinawa and Amami. In Okinawa and Amami, there is a risk of severe stormy weather around the first day of the week, and people should be on guard against heavy rain, strong winds, and high waves accompanied by swells.

In addition, Typhoon No. 6 is expected to gradually change its course to the east and move toward the coast of Shikoku, accompanied by strong winds, around the 3rd, and is expected to approach Honshu. In western and eastern Japan, the typhoon is expected to bring warning-level heavy rain, strong winds, and high waves, especially along the Pacific coast.

Please pay close attention to the latest typhoon information that will be updated in the future, and prepare as much as possible for heavy rain disasters, such as checking evacuation routes and hazard maps, securing emergency water and food, and cleaning gutters.

Latest 1-month forecast: The season is gradually turning into the rainy season. Prepare early for heavy rain disasters. Be careful of "considerable high temperatures" from the Tokai region to Kyushu.

2026/05/28 21:36

On the 28th (Thursday), the Japan Meteorological Agency announced the latest one-month forecast, which shows the weather outlook for the next month.



The monthly average sea level pressure is predicted to increase in strength in the southeast of Japan. As a result of this, it will be easier for moist air to flow around the edge of the high pressure system around western and eastern Japan. Additionally, the atmospheric pressure near the Sea of Okhotsk is expected to be lower than normal, making it easier for warm air to flow in.
Temperatures around 1500m above the sky will be higher than normal near Japan.



From now on, we will gradually move into the full-fledged rainy season. It is expected that humid air will easily enter western Japan and the Pacific side of eastern Japan, making it easier for the rainy season front to stagnate near Japan. Precipitation tends to be higher on the Pacific side of western and eastern Japan. It is predicted that during the rainy season there will be more rainfall than normal, so it is best to prepare for heavy rain disasters as early as possible.
In addition, at the beginning of June, Typhoon No. 6 will move northward near Japan, which may have a major impact on the weather near Japan. Please pay attention to future information.



From now on, it is likely that temperatures will continue to be higher than average nationwide. Especially in western Japan, be careful of ``considerable high temperatures'' around the beginning of June.
On the 28th (Thursday), the Japan Meteorological Agency announced "early weather information regarding high temperatures" for the Tokai region and southern Kyushu region. The announcement comes at a time when the probability of extremely high temperatures reaching once-in-a-decade levels is higher than usual, and regions west of the Tokai Sea are expected to experience ``considerable high temperatures'' starting around the 3rd. Also, the added influence of humid air is likely to make it humid and uncomfortable.

To avoid heatstroke, please take precautions against the heat, such as drinking plenty of water and salt, taking adequate breaks, using air conditioning, and adjusting your clothing.

[New Disaster Prevention Weather Information] Weather information will also be organized into "Weather Disaster Prevention News" and "Weather Explanation Information"

2026/05/28 18:38

New disaster prevention weather information will begin in the afternoon today, May 28th (Thursday). As a result, the warnings and advisories issued by the Japan Meteorological Agency will be significantly revised.

This topic introduces ``Weather Disaster Prevention News'' and ``Weather Explanation Information.''

In this new disaster prevention information,
In addition to warnings that are directly linked to alert levels, "weather information" that supplements the situation will also be organized.



Information that was previously conveyed as several types of "weather information" is now broadly classified into two types: "weather disaster prevention bulletin" and "weather commentary information." Having a uniform name makes it easier to understand the role of each piece of information.

Now, let's take a look at the information for each.

# [Weather Disaster Prevention News] = "Information that reports extreme phenomena in a breaking news manner"



"Weather Disaster Prevention Bulletin" is used to notify when a specific extreme phenomenon, such as a linear precipitation band, has occurred or is about to occur.

In other words, it is information that ``breaks the news when extreme phenomena such as intense rain or tornadoes have already occurred or are about to occur.''
If you see the word ``breaking news,'' you should think that ``the phenomenon is occurring somewhere, or there is a high possibility that it is imminent.''

Examples include ``Weather Disaster Prevention Bulletin (Heavy Rains in a Record Short Time)'' and ``Weather Disaster Prevention Bulletin (Linear Rain Band Occurrence)''.
Additionally, new information on "Last-minute forecast for linear precipitation belts" will be added.


# [Weather commentary information] = "Comprehensive explanation information"



"Weather commentary information" is information that comprehensively explains the current or future weather conditions and the outlook for disaster risk.
It has the role of supplementing information such as warnings and alerting people in advance.

If this information comes out, you should think that ``some kind of extreme phenomenon may occur in the near future.''

Examples include weather commentary information (linear precipitation zone forecast half a day in advance)/weather commentary information (typhoon No. #).


Ahead of the heavy rain season, it is a good idea to use this weather information in advance to prepare for disasters.

[New disaster prevention weather information] What is a "danger warning" that will start sequentially from this afternoon (Commentary: Weather forecaster Atsuko Miyake)

2026/05/28 14:35

New disaster prevention weather information will be rolled out from the afternoon of today, May 28th (Thursday).
Today we will talk about danger warnings.



Heavy rain disasters occur almost every year, but the challenge every time a disaster occurs is
``not knowing when to evacuate.''



In fact, the Japan Meteorological Agency also announced various information such as heavy rain warnings, landslide warning information,
information regarding significant heavy rain.
I think it was difficult for the general public to understand which information was dangerous
.
This time, the disaster prevention weather information will change drastically from this afternoon.



This change is not about providing information, but
is a review with an emphasis on leading to action.

The biggest change this time is
this level division.
For example, regarding heavy rain. Level 1 is early warning information,


information level is heavy rain advisory, level 3 heavy rain warning, level 4 radish danger warning, level 5 heavy rain special warning. That's what it means.


The level will be included in the name, creating a sense of unity and making it easier to understand the degree of danger.



This is a list showing the alert level and actions to be taken.
At the level 2 warning level, evacuation actions are confirmed,
at the level 3 warning level, elderly people and others are evacuated from dangerous areas.


A level 4 danger alert requires everyone to evacuate from dangerous areas.


And at alert level 5, lives are in danger.
Please ensure your safety immediately.



What I would like you to especially remember this time is this level 4 danger warning. This has been newly installed


This information has been unified with the existing landslide warning information, flood risk information, etc.


information regarding the stage at which evacuation is necessary.


Level 4 means that all people in dangerous areas must evacuate.
In recent years, the risk of heavy rain disasters can increase rapidly at night.
By evacuating at night, you may end up encountering a disaster.
, so I would like Level 4 to be the level for completing evacuation, not for the start of evacuation.



However, it is important to note that this Level 4 Danger Alert may suddenly upgrade from a Level 2 Alert to a Level 4 Danger Alert.

When the rain suddenly intensifies, such as in a linear precipitation zone, the
level 3 warning may be exceeded and level 4 is reached.



If you feel that the rain is falling differently than usual,
be sure to pay close attention to your surroundings and begin preparations for evacuation, even when a Level 2 advisory is issued.

Ahead of the heavy rain season, it is a good idea to discuss in advance with your family where you will evacuate and
when you will move.

Typhoon No. 6 (Changmi) will approach Okinawa with strong force early next month

2026/05/28 07:16

Typhoon No. 6, which occurred yesterday (27th), is in the east of the Philippines as of 6:00 am today, 28th, and is moving slowly north-northwest.

#Typhoon No.6 28th (Thursday) 6:00
===================/br Center position East of the Philippines
Move North-northwest Slowly
Central pressure 1000 hPa
Maximum wind speed 18 m/s (near the center)
Maximum instantaneous wind speed 25 m/s
==================



From now on, Typhoon No. 6 is expected to continue moving northward as it continues to intensify, and is expected to be accompanied by strong winds on the 30th (Saturday). It is expected to develop into a "strong" force on the 31st (Sunday), and as the month changes, it will move south of Okinawa on the 1st (Monday), and will be closest to Okinawa around the 2nd (Saturday).

There is a risk that Okinawa will be affected by typhoons, including rough weather from the beginning of next month. Please take early typhoon measures.
Also, due to the influence of moist air around the typhoon, the front may become more active, which may affect areas far away from the typhoon. Please pay attention to the latest typhoon information.