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.

[Fronts become more active on Saturdays and Sundays] The rainy season will soon end in Okinawa, with areas experiencing warning-level heavy rain (Commentary: Weather forecaster Atsuko Miyake)

2026/06/18 13:46

The rainy season front is finally moving north to Honshu.
This weekend, there are likely to be warning-level heavy rains in some parts of western Japan.
The rainy season is in full swing, so you need to be careful about how it rains.



First, let's take a look at the state of the rain clouds at this time.
Live broadcast at 11am.
Rain clouds associated with the rainy season front and low pressure are hanging over Kyushu, Shikoku, and the Kanto region.

Rain clouds have developed in some parts of Kyushu, and extremely heavy rain has been observed in Miyazaki Prefecture, at 60.5mm per hour.



This is the forecasted weather map for tonight.
After this, the low pressure system above the seasonal rain front will move away to the east of Kanto.

However, the rainy season front remains stationary in southern Kyushu.
Warm, moist air continues to flow toward this front from the south.
The unstable atmosphere in southern Kyushu is likely to continue.

Also, cold air flows into the skies over eastern and northern Japan where the low pressure system is moving away.

For this reason, even if the weather improves once in eastern Japan,
the atmospheric conditions will be unstable in the afternoon, and there will likely be rain and thunderstorms in some places, especially along the mountains.
Be careful of changes in the sky.




Now, let's take a look at the rain forecast.
It is expected that rain clouds will continue to accumulate in southern Kyushu.

The rain clouds will pass through the Kanto region for a while, but they will start to develop along the mountains in the afternoon.

There is a risk of heavy rain in the Hokuriku and Tohoku regions from the evening onwards.

At dawn tomorrow (Friday), the rain will stop in the Hokuriku and Tohoku regions, but
southern Kyushu will likely continue to experience active rain clouds.

Please be careful about how it rains in the Kyushu region through tomorrow (Friday).



The rainy season front is expected to move further north on the 20th (Saturday).

In the Kyushu region, which falls to the south of the front, there is a risk of heavy rain and thunderstorms over a wide area due to the warm, humid air.

On the 20th (Saturday), there is a risk of warning-level heavy rain mainly in the Kyushu region.

In Kyushu, please be careful of landslides caused by continuous rain, rising water levels, and flooding of rivers.


On the 21st (Sunday), active rain clouds will move into eastern Japan, and
the rain is likely to become heavier in eastern Japan as well.

The rainy season front is expected to stay near Honshu next week, and the rainy season sky is expected to continue.
Meanwhile, the front is moving away from the Okinawa region, and it looks like the rainy season will soon be over in the Okinawa region.



Forecast for tomorrow (Friday).

Tomorrow, the rainy season front will move north in western Japan, so the rain will spread from the west in the afternoon.

The Kinki and Tokai regions are expected to have sunny spells during the day, with temperatures expected to rise to around 32c.
Here you need to take measures against the heat.
Even in the Kanto region, temperatures will rise to 29c in Tokyo.

The rain mark in Niigata and Sendai will last until dawn, but please be careful of showers and thunderstorms in the afternoon as well.



Weekly forecast.

From now on, the weather around Honshu will continue to be cloudy and rainy.

Next week, the Sea of Okhotsk High Pressure will strengthen,
It will be easier for cold winds to blow from the north in areas north of the Kanto region.

From Kanto to Hokkaido. It looks like the temperature will be slow to rise next week, and there will be some days where it feels a little cool.

On the other hand, in areas west of the Tokai region, summer days with temperatures above 25c continue.
It looks like it's going to be hot and humid here. Please be careful of heat stroke.

Waves are rising due to fronts and low pressure; sea surface temperatures continue to be higher than normal in the central and western Japan Sea [Ocean summary (June 7th to 13th, 2026)]

2026/06/17 19:50

The front stalled from near the Nansei Islands to the south of Japan, and waves rose around the front and around the low pressure area above the front, and there were places from the Nansei Islands to the south of Japan. To the east of Hokkaido, the storm was affected by a low-pressure system moving near the Kuril Islands.
Sea surface temperatures in the Japanese waters continued to be significantly higher than normal on the continental side in the central and western regions, reaching up to 3c higher than normal.

Below is the ocean summary (June 7th to 13th, 2026).



#Pressure distribution and waves
On the 7th, there was a large pressure gradient between the low pressure far east of Japan and the high pressure over the Sea of Okhotsk, and waves rose on the Pacific side of northern and eastern Japan. A low pressure front moved eastward south of Kyushu and settled near the Nansei Islands.
On the 8th, a low pressure system moved eastward near the Izu Islands and settled in the south of Japan.
From the 9th to the 11th, a low pressure system moved from near Hokkaido to the east of the Kuril Islands. A front extended from the Nansei Islands to the east of Japan. Waves were increasing in the east of Hokkaido around the low pressure system and south of Okinawa and east of Japan near the front, and on the 10th, waves were strong in the east of Hokkaido and south of Japan.
On the 12th and 13th, a frontal low pressure system moved eastward east of Japan. In the east of Japan, waves increased around the low pressure area.



#Sea surface temperature
Sea surface temperatures in the northern part of the Japanese Sea remained at normal levels, but in the central and western continental areas, waters remained significantly higher than normal.
The East China Sea continued to be at normal levels, and the waters near the Nansei Islands continued to be below normal.
Off the coasts of Shikoku and the Tokai Sea, conditions were near normal.
Off the southeast coast of the Kanto region, sea areas continued to be slightly lower than normal.
The sea area from the east of Kanto to the coast of Sanriku continued to be lower than normal, with temperatures as low as 4c.
Off the southeastern coast of Hokkaido, sea conditions continued to be lower than normal, and the waters near the Chishima Islands and the Sea of Okhotsk were at normal levels.

Weather for the week: The rainy season front is gradually moving north, and the humid rainy days are likely to continue around Honshu.

2026/06/17 18:13

From now on, the rainy season front will gradually move north toward Honshu. It looks like the rainy season will end in Okinawa, and the rainy season will begin in Hokuriku and Tohoku.

Tomorrow, the 18th (Thursday), heavy rain with thunder is expected in some places in the southern Kyushu and Amami regions, where the rainy season front is stationary, starting in the morning. As the ground has become loose in some areas due to heavy rain, even a little rain can cause landslides, so please be careful. Also, please be careful of flooding in low-lying areas and rising water levels in rivers.



It will rain around Honshu, mainly on the Pacific side from western Japan to eastern Japan. The rain is expected to stop in many places around noon, but atmospheric conditions will become unstable in the afternoon due to cold air, a trough in the atmospheric pressure in the upper atmosphere, and moist air.
Thunder clouds are expected to develop from evening to early night, mainly in the inland areas and mountains of western and eastern Japan, so please be careful of sudden thunderstorms, lightning strikes, and strong gusts of wind such as tornadoes.



From Friday the 19th onward, high pressure is expected to extend south of Honshu, and the rainy season front is expected to extend east-west around Honshu on many days. Okinawa is expected to have more sunny days in the future, and the Japan Meteorological Agency may announce the end of the rainy season.

On the other hand, there are many cloudy and rainy days around Honshu, and it will be the rainy season. In the Hokuriku and Tohoku regions, where the rainy season has not yet been announced, the Japan Meteorological Agency may announce the start of the rainy season.
On the weekend around the 20th (Saturday), there is a possibility of heavy rain mainly in Kyushu due to the influence of a low pressure system moving from the west, so please pay attention to the latest weather information that will be updated in the future. In western Japan, there are places where the temperature rises to nearly 30 degrees Celsius even on rainy days, making it a humid experience. To avoid heatstroke, be sure to drink plenty of water and take adequate breaks.

Weather for tomorrow 18th (Thursday): Rainy on the Pacific side

2026/06/17 17:37

A low-pressure system on top of the seasonal rain front is expected to move northeast along the southern coast of Honshu.




Due to the influence of the rainy season front, it will be easier to rain on the Pacific side from Kyushu to Kanto. There is a risk of locally heavy rain, especially in southern Kyushu, which is close to the rainy season front. The rain in the Kanto region stops early in the morning, but clouds continue to spread and the weather becomes gloomy. In Hokuriku, there is a possibility of showers from evening to night as a pressure trough approaches. If you will be returning home late, it is a good idea to bring an umbrella just in case.
The temperature will rise to around 30c during the day in a wide area, making it humid and uncomfortable. It is a good idea to choose clothes that are breathable.

Heavy rain in southern Kyushu due to the influence of the seasonal rain front; strict warning for landslides; late tonight, the area of rain will spread to the east

2026/06/17 13:01

Today, the 17th (Wednesday), the rainy season front is stationary near southern Kyushu. Warm, humid air is flowing towards the rainy season front, and heavy rain of more than 30mm per hour is falling in some places, especially around Tanegashima and Yakushima in Kagoshima Prefecture.
As of noon, a level 3 landslide warning has been issued in Nishinoomote City, Kagoshima Prefecture, and a level 4 landslide warning has been issued in Toshima Village, Amami Region.

In southern Kyushu, the rainy season front will continue to remain stationary, and there will be heavy rain with thunder in some places, mainly in the Amami region, from the afternoon onwards. The rainy season front is expected to remain near the Tanegashima and Yakushima regions until the 18th, and heavy rain is likely to continue. The ground has become loose in some places due to heavy rain, so please be extremely careful about landslides.
Also, be careful and be wary of flooding in low-lying areas, rising water levels, and flooding of rivers.



The rainy season front is expected to gradually move north toward Honshu tonight. In the Shikoku region, the Kii Peninsula, and the Tokai region, it will start raining in the evening, accompanied by localized thunderstorms. Rain will start to fall in some places along the coast of the Kanto region late tonight, and the area of rain will spread into tomorrow, the 18th (Thursday).
Especially in the areas where strong shaking was observed in the Kanto region yesterday, the 16th (Tuesday), there is a high risk of landslides and falling rocks even with a little rain, so please be careful.