Tohoku to Hokuriku regions are on alert for heavy rain

2026/06/21 08:50

There is a low pressure system moving eastward in the Sea of Japan, with a warm front passing through the Kanto region and extending into the sea east of Japan, and a cold front passing through western Japan and extending into the East China Sea.
Atmospheric conditions are unstable as warm, humid air flows toward low pressure systems and fronts.



Currently, rain clouds are spreading from Tohoku to the Tokai and Hokuriku regions, and there are places where the ground has become loose due to the rain that has fallen so far.



Towards tomorrow, warm, humid air will flow toward low pressure systems and fronts,
and heavy rain will fall in the southern Pacific side of Tohoku and the Hokuriku region in some places.

Depending on the location and degree of development of the low pressure system and front, there is a possibility of warning-level heavy rain, so please be careful and be on guard.





#Rain forecast
The predicted hourly precipitation on the 21st is high in the following areas:
Southern Tohoku Sea of Japan side 30 mm
Southern Tohoku Pacific side 30 mm
Hokuriku region 30mm

24-hour precipitation expected from 6:00 on the 21st to 6:00 on the 22nd is expected to be high in the following areas:
Southern part of Tohoku on the Sea of Japan side 100mm
Southern part of Tohoku on the Pacific side 120mm
Hokuriku region 100mm

Then, the predicted 24-hour precipitation from 6:00 on the 22nd to 6:00 on the 23rd will be high,
Southern Tohoku Sea of Japan side 30mm
Southern Tohoku Pacific Coast 60mm

#Disaster Prevention Matters
In the southern Tohoku Pacific coast, please be careful of landslides, flooding of low-lying areas, and rising river waters due to heavy rain late into the night of the 22nd.
In the Hokuriku region, please be careful of flooding of low-lying areas, rising river waters, and landslides late into the night of the 21st.

Tohoku to Hokuriku regions are on alert for heavy rain

2026/06/21 08:50

There is a low pressure system moving eastward in the Sea of Japan, with a warm front passing through the Kanto region and extending into the sea east of Japan, and a cold front passing through western Japan and extending into the East China Sea.
Atmospheric conditions are unstable as warm, humid air flows toward low pressure systems and fronts.



Currently, rain clouds are spreading from Tohoku to the Tokai and Hokuriku regions, and there are places where the ground has become loose due to the rain that has fallen so far.



Towards tomorrow, warm, humid air will flow toward low pressure systems and fronts,
and heavy rain will fall in the southern Pacific side of Tohoku and the Hokuriku region in some places.

Depending on the location and degree of development of the low pressure system and front, there is a possibility of warning-level heavy rain, so please be careful and be on guard.





#Rain forecast
The predicted hourly precipitation on the 21st is high in the following areas:
Southern Tohoku Sea of Japan side 30 mm
Southern Tohoku Pacific side 30 mm
Hokuriku region 30mm

24-hour precipitation expected from 6:00 on the 21st to 6:00 on the 22nd is expected to be high in the following areas:
Southern part of Tohoku on the Sea of Japan side 100mm
Southern part of Tohoku on the Pacific side 120mm
Hokuriku region 100mm

Then, the predicted 24-hour precipitation from 6:00 on the 22nd to 6:00 on the 23rd will be high,
Southern Tohoku Sea of Japan side 30mm
Southern Tohoku Pacific Coast 60mm

#Disaster Prevention Matters
In the southern Tohoku Pacific coast, please be careful of landslides, flooding of low-lying areas, and rising river waters due to heavy rain late into the night of the 22nd.
In the Hokuriku region, please be careful of flooding of low-lying areas, rising river waters, and landslides late into the night of the 21st.

[Latest Typhoon Track Forecast] Typhoon No. 7 will move slowly south of Okinawa. What will be the impact on Okinawa and Honshu

2026/06/20 11:52

At 3 a.m. today, the 20th (Saturday), the tropical cyclone east of the Philippines became Typhoon No. 7 (Maker).

#Typhoon No. 7 will become a stronger force in the future
#Typhoon No. 7 will move slowly south of Okinawa
#Sea rain front stagnant near Honshu. Depending on the path of the typhoon, the front may become more active

[Typhoon No. 7 Today 20th (Saturday) 9:00 AM]
Center location East of the Philippines
Movement West-northwest 25 km/h
Central pressure 1000 hPa
Maximum wind speed 20 m/s (near the center)
Maximum instantaneous wind speed 30 m/s
Strong wind area 220 km (entire area)



#Typhoon No. 7 will become stronger in the future
As of 9 a.m. today, the 20th (Saturday), Typhoon No. 7 is moving west-northwest in the east of the Philippines with strong winds.
Typhoon No. 7 is expected to continue moving west-northwest in the east of the Philippines as it continues to intensify.
The next day, on the 22nd (Monday), it will become a strong force, accompanied by stormy winds, and will move west-northwest across the east of the Philippines until the 24th (Wednesday).
Then, it will slowly change its course northward, and is expected to reach the south of Okinawa on the 25th (Thursday), accompanied by strong winds.

#Typhoon No. 7 moves slowly south of Okinawa
Typhoon No. 7 is expected to move slowly south of Okinawa.
The future course is uncertain, but depending on the course it takes, it will have a direct impact on Okinawa.
Please keep an eye on the latest information as there is a risk of severe weather.

#The rainy season front is stagnant near Honshu. Depending on the path of the typhoon, the front may become more active
From now on, the rainy season front is expected to remain stationary near Honshu.
Depending on the path of the typhoon, the warm and humid air surrounding the typhoon may stimulate the seasonal rain front, causing the front to become more active.
Also near Honshu, it is necessary to pay attention to future typhoon trends.

Typhoon No. 7 occurs off the east coast of the Philippines. Possibility of approaching the Sakishima Islands in the middle of next week

2026/06/20 07:38

At around 3 a.m. today, Saturday, the 20th, a tropical cyclone moving over the sea east of the Philippines became Typhoon No. 7 (Mae Color).

#Typhoon No. 7 20th (Friday) 6:00 a.m.
==================
Center location East of the Philippines
Moving speed West 30km/h
Central pressure 1002hPa
Maximum wind speed 18m/s (near the center)
Maximum instantaneous wind speed 25m/s
==================



Typhoon No. 7 is expected to continue to grow and move west-northwest over the sea east of the Philippines. Around the 22nd, it is expected to be accompanied by stormy winds, and on the 23rd it will reach its peak with maximum wind speeds of 35m/s near the center. It is expected to change its course to the north-northwest around the 24th and approach the Sakishima Islands from the 25th onwards, accompanied by stormy winds.

There is a wide range of predictions for the typhoon's path, but please pay attention to the latest typhoon forecasts that will be updated in the future. Additionally, the seasonal rain front is stationary near Honshu, so if warm, humid air from the typhoon flows in, there is a risk of heavy rain in the area around the front. Even near Honshu, it is necessary to pay attention to future typhoon trends.

Weather forecast for today, the 20th (Saturday): The seasonal rain front is becoming more active. It will rain over a wide area of western and eastern Japan.

2026/06/20 07:00

Today, the 20th (Saturday), a low pressure system on top of the rainy season front will move near the Sea of Japan. As extremely warm and humid air flows towards the front, frontal activity increases, causing rain over a wide area from western to eastern Japan.
As of 6 a.m. today, rain clouds have developed and are spreading mainly over western Japan. The rain clouds accompanying the rainy season front will gradually spread eastward, and heavy rain will begin to fall over a wide area of eastern Japan in the afternoon. Rain is expected to spread to the Tohoku region by night.



There is a risk of locally heavy rain accompanied by thunder, and there is a risk of warning-level heavy rain. You need to be careful about landslides, flooding of low-lying areas, flooding of roads, and rising river waters. Also, the wind will be strong in coastal areas, so please be careful of strong winds and high waves.



During the day, the temperature will rise modestly due to the influence of rain, and will likely be around 26 to 27 degrees Celsius. In Kyushu, the temperature is expected to rise to nearly 30 degrees Celsius, making it a humid and humid day. In Okinawa, where the sunlight reaches, it will be a midsummer day with temperatures over 30 degrees Celsius.

Will a typhoon occur by tomorrow the 20th (Saturday) Characteristics of typhoons when El Nino occurs

2026/06/19 18:54

At 21:00 yesterday, Thursday the 18th, the low pressure area near the Mariana Islands became a tropical cyclone. Regarding this tropical cyclone, the Japan Meteorological Agency announced at 9 a.m. today, Friday, 19th, that it is ``expected to develop into a typhoon within 24 hours.''



#Tropical cyclone (as of 15:00 on June 19th)
Center location: Mariana Islands
Central pressure: 1004hPa
Direction and speed: West 25km/h
Maximum wind speed: 15m/s
Maximum instantaneous wind speed: 23m/s

After this, it is expected to continue moving over the warm sea surface and move westward as it develops.
It is expected to develop into a strong force on the 23rd (Tuesday), and will advance south of Okinawa on the 24th (Wednesday). The course after that has not yet been determined, but there is a possibility that it will change course to the north and approach Honshu, so please check the latest course.




The Japan Meteorological Agency announced around June 10th that ``El Nino phenomena are expected to occur from spring this year.'' The El Nino phenomenon is expected to continue into the fall.
It is generally said that when an El Nino phenomenon occurs, typhoons are more likely to approach Japan with strong force.

El Nino is a phenomenon in which sea surface temperatures in the equatorial Pacific Ocean from near the international date line to the coast of South America become higher than normal, and this condition continues for about six months to a year. When an El Nino phenomenon occurs, the location of the typhoon tends to shift southeasterly than usual, and when the typhoon approaches Japan, it has to travel a longer distance than usual through areas with high sea surface temperatures, making it more likely to approach with strong force.

This year's typhoon season has only just begun, so be prepared.

[Heavy rain in Kyushu until tomorrow (Saturday)] Be careful of new typhoon trends (commentary: weather forecaster Atsuko Miyake)

2026/06/19 14:57

Here are the weather points for the Kyushu region.

Rainy season front becomes more active - Beware of heavy rain disasters
The rainy season front is likely to become more active in the Kyushu region into tomorrow (Saturday).
Please be careful of heavy rain disasters.
Will a new typhoon occur
A new typhoon is expected to form in the southern seas by tomorrow (Saturday).
Please pay attention to future typhoon trends.



First, let's take a look at the heavy rains in the Kyushu region.

This is what the rain clouds look like.
The rainy season front is stationary in southern Kyushu, and active rain clouds are covering southern Kyushu.
At this time, heavy rain of over 30mm per hour is being observed mainly in Kagoshima and Oita prefectures.
The rainy season front is expected to move northward into tomorrow (Saturday).



Let's take a look at the forecast weather map.
The rainy season front is stationary in southern Kyushu tonight and is expected to move north into northern Kyushu by tomorrow (Saturday).

Very warm and humid air, similar to the end of the rainy season, is flowing towards this rainy season front.
It is the cause of heavy rain.

This extremely warm and humid air is expected to flow into the northern Kyushu region from today (Friday) to tomorrow (Saturday).



Now, let's take a look at the rain cloud forecast.
After this, I'll watch it from 3pm.

Active rain clouds are centered over southern Kyushu, but
are expected to move into northern Kyushu from the evening onwards.
Especially in northern Kyushu, there is a risk of extremely heavy rain into the evening, with more than 50mm of rain per hour
like waterfalls.

The way it rains, the roads suddenly turn into rivers.

It is expected that active rain clouds will continue to hang over northern Kyushu into the night.
The heavy rain is expected to reach its peak by the time the date changes, but even after the
date changes, the rain will continue intermittently.

It looks like there will be little break in the rain, mainly in the mountains, into the afternoon of tomorrow (Saturday).
It rains continuously in the same place, which is a dangerous way of rain.
It looks like there will be a lot of rain in the Kyushu region.

The Kyushu region will experience warning-level heavy rain into tomorrow.
Please be wary of landslides, flooding of low-lying areas, and river flooding.

Stay away from underpasses, especially when it's raining heavily.



And the second point. Will there be a typhoon by tomorrow (Sat)
A new typhoon is expected to form over the southern seas by tomorrow morning.

Let's take a look at tropical cyclone information.
A tropical storm formed in the Mariana Islands at 9 a.m. today.
After this, it is expected to continue moving above the warm sea surface, developing and moving westward.


It is expected to develop into a strong force on the 23rd (Tuesday) and advance to the south of Okinawa on the 24th (Wednesday).

In the Kyushu region, the rainy season front and typhoon may combine to cause heavy rain, so
please continue to pay close attention to the movement of the typhoon.



It will continue to rain into tomorrow (Saturday), with heavy rain.
From tonight until tomorrow morning, please sleep in a safe place on the second floor or higher of your home,
and away from cliffs.

There will be many periods of rain stopping on the 21st (Sunday) and 22nd (Monday), but on the 23rd (Tuesday), a low pressure system and front will approach again, and there is a risk of warning-level heavy rain in Kyushu.
It looks like the rainy weather will continue after that.

Originally, it is not the end of the rainy season yet, but
please be careful about how it rains into next week.

[Heavy rain at warning level on Saturday and Sunday] Typhoon forecast also predicts next week will be the "rainy and cold season" rarely seen in recent years (Commentary: Weather forecaster Atsuko Miyake)

2026/06/19 14:08

Here are some key points about the weather from now until next week.



First of all, the seasonal rain front will be active this Saturday and Sunday,
and it is likely to cause warning-level heavy rain in western and eastern Japan.

And the second one.
A new typhoon is expected to form in the southern seas by tomorrow (Saturday).
And third, the temperature is likely to be particularly low next week.
A rare rainy/cold season may occur in recent years, especially in eastern and northern Japan.

Let's start with the first point.
You need to be careful about how it rains on Saturdays and Sundays.



First, here is the forecast weather map from tonight to tomorrow.
The front is expected to remain in southern Kyushu into tonight.
The rainy season front is expected to move northward tomorrow (Saturday).
A frontal low pressure system is expected to move into the Sea of Japan.
Tonight, warm and humid air will flow into southern Kyushu.
Tomorrow (Saturday), extremely warm and humid air, similar to the end of the rainy season, will suddenly flow into western Japan.
It looks like it will bring heavy rain.



Let's take a look at how it rains.
I'll take a look at it this evening.
The Kyushu region is marked in red.
There is a risk of very heavy rain, like waterfalls, falling into the evening, especially in northern Kyushu.
It will rain more than 50mm per hour, so the
road will suddenly turn into a river.

As the date changes, the front moves northward and rain clouds spread across western Japan.
At dawn tomorrow (Saturday), a line of active rain clouds will be visible from the Kii Peninsula to the Chugoku region.
There is a risk of heavy rain and thunderstorms in places.
It looks like the rain will fall like an overturned bucket.



Tomorrow (Saturday) around noon, rain clouds will begin to cover the Tokai and Kanto regions.
Also, active clouds are expected to cover the Kanto, Tokai, and Hokuriku regions toward night.
There is a risk of heavy rain and thunderstorms.
Also, please be aware that there is a risk of strong gusts of wind such as tornadoes.

There is a risk of heavy rain on Saturday and Sunday.



Let's take a look at the risk level of warning-level heavy rain and landslides.
A warning is possible for tomorrow (Saturday) in Kyushu, the Chugoku region, the Kinki region, and the Hokuriku region.
Furthermore, on the 21st (Sunday), the area of rain will shift to the east and north.

There is a risk of warning-level heavy rain and landslides, mainly from the Kinki region to the Tokai and Hokuriku regions.

On Saturdays and Sundays, please be careful of landslides, flooding of low-lying areas, river flooding, and rising waters.
Please avoid entering these underpasses when it is raining heavily.



Next, the second point.
A typhoon is expected to form over the southern seas by tomorrow (Saturday).

A tropical cyclone formed in the Mariana Islands at 9 a.m. today (Friday).
It's a typhoon egg.
After this, it is expected to advance westward over the warm ocean surface.

It is expected to develop to 975 hectopascals on the 23rd (Tuesday) and become a "strong force."
Additionally, on the 24th (Wednesday), there is a risk that it will approach the Sakishima Islands in Okinawa with strong winds.
Please continue to pay close attention to the movement of the typhoon.



And the last point. Next week, the area around Honshu may experience an unusually cold and rainy season.
Let's take a look at the temperature forecast for the month that was announced yesterday.
It is likely to be lower than normal.

Especially in eastern and northern Japan, it is easy for cold air blowing from the Sea of Okhotsk to flow in.
The temperature is expected to continue to be low for this time of year.
In recent years, we may experience an unusual "rainy and cold" season.
Please be careful about changes in temperature.



, we will look at the weather in various places.
On Saturday and Sunday, there is a risk of warning-level heavy rain mainly in western and eastern Japan.
Please be careful of landslides, river surges, and flooding.
There will be some rain on Monday, but it will rain again on Tuesday.

Please be aware that there is a risk of warning-level heavy rain again mainly in western Japan on the 23rd (Tuesday).
And in Naha, there will be no rain mark after tomorrow.
It looks like the rainy season will be over soon here.

Weather today, the 19th (Friday): Weather is downhill in western Japan; watch out for changes in the sky in northern Japan

2026/06/19 06:20

Today, the 19th (Friday), the rainy season front is expected to gradually move northward from the west. The rain will spread from the west, and rain gear will be useful in the afternoon in western Japan. Additionally, a trough in atmospheric pressure will pass through northern Japan, so we need to be careful of sudden thunderstorms.



Due to the influence of a pressure trough, clouds tend to spread in northern Japan, and there will be showers and thunderstorms in the afternoon, mainly inland and along the mountains. Even if it's sunny when you go out, it's safe to carry a folding umbrella.

In many parts of eastern Japan, it will be sunny and the temperature will rise. Maximum temperatures will reach around 30 degrees Celsius in many places, and it is likely to be a hot day, especially in inland areas. Please be careful of heat stroke.
Please be aware of changes in the sky as there is a possibility of showers inland and along the mountains in the afternoon.

The area of rain is expected to gradually expand in western Japan as the seasonal rain front moves northward. It is expected to rain in many places in southern Kyushu from the morning, in northern Kyushu from the evening, and in the Chugoku, Shikoku, and Kinki regions at night.
There is a risk of heavy rain and thunderstorms in Kyushu, so please be careful of landslides, rising river waters, and flooding of low-lying areas.

The weather in Okinawa will be similar to the end of the rainy season. Please be careful of heatstroke as it will feel hot and humid.

Weather for tomorrow, the 19th (Friday): Southern Kyushu is on alert for heavy rain; Kinki and Kanto regions are on alert for severe heat during the sunny spell of the rainy season

2026/06/18 18:12

Tomorrow, the 19th (Friday), the rainy season front will slowly move northward, and it will start raining in the morning, mainly in the southern part of Kyushu. The rain will gradually spread to the north, and there is a risk of locally heavy rain.
Please be careful as there is a risk of flooding of roads and low-lying land.
It will start raining gradually in Shikoku and the Chugoku region, and there will be heavy rain in some places from the evening onwards.
Although the temperature won't be as high today as it was on the 18th (Thursday), it's likely to be humid and stuffy.






The Kinki region is expected to be mostly clear by midday, and the Tokai and Kanto regions are expected to be mostly clear by midafternoon. Temperatures will rise during the day, exceeding 30 C in many places. Temperatures can reach 35 C inland.
Due to the high humidity, the risk of heatstroke is expected to increase. Make sure to stay properly hydrated and rest when doing outdoor activities.