A front will pass through tomorrow on the 7th, warning of heavy rain, especially in the Tokai region!

2024/05/06 16:52

There is a low pressure system in the western part of the Sea of Japan and it is moving eastward.
A warm front is extending from the center to Hokkaido, and a cold front is extending through Kyushu to the East China Sea.

Currently, clouds are spreading around Japan due to pressure troughs and fronts, and it is raining in Hokkaido and western Japan.
In southern Kyushu and the Pacific side of Shikoku, there are places where it is raining heavily with thunder.



Tomorrow 7th A front extending from this low pressure system is expected to pass near Honshu.
As warm, humid air flows toward the front from the south, rain clouds spread across eastern Japan.

Especially in the Tokai region, heavy rain accompanied by thunder will fall from late night on the 6th to early afternoon on the 7th, resulting in heavy rain in some places.
If the rain clouds develop more than expected and become stagnant, there is a possibility of warning-level heavy rain.
Please be careful of flooding of low-lying land, rising river water, and landslides.





[Rain forecast]
Forecast on the 6th The expected hourly precipitation on the 7th is the highest in all places,
Mie Prefecture 30 mm

Aichi Prefecture 40 mm
Gifu Prefecture 40 mm
Mie Prefecture 40 mm
Shizuoka Prefecture 40 mm


24-hour precipitation expected from 18:00 on the 6th to 18:00 on the 7th is high in all places,
Aichi Prefecture 130 mm
Gifu Prefecture: 130 mm
Mie Prefecture: 150 mm
Shizuoka Prefecture: 150 mm
[Disaster Prevention Matters]
Please be careful of flooding in low-lying areas, rising river levels, and landslides. Also, be careful of lightning, gusts of wind, and hail.

Ehime Prefecture: Heavy rain expected tomorrow; be careful of landslides

2024/05/06 07:04

A low pressure system accompanied by a front is near the Korean Peninsula and is moving east-northeast. By Monday night, the 6th, a new low pressure system will form in the Sea of Japan, and a front will extend into western Japan. Therefore, in Ehime Prefecture, winds from the south are expected to strengthen toward the low pressure system and front. In addition, warm and humid air will flow in, making the atmospheric conditions unstable and causing heavy rain in Nanyo.

In areas that were shaken strongly by the Bungo Channel earthquake on April 17, 2020, landslides are more likely to occur even with less rain compared to before the earthquake.



#Rain Forecast
In Nanyo, heavy rain with localized thunder is expected to fall from the afternoon to evening of the 6th (Monday). If the developed rain clouds become stagnant, there is a possibility of warning-level heavy rain.
The expected 1-hour precipitation on the 6th is high in some places,
Southern forecast 30mm

The 24-hour precipitation expected from 6 o'clock on the 6th to 6 o'clock on the 7th is high in all places. ,
Chuyo 80mm
Toyo 80mm
Southern forecast 100mm

#Wind forecast
In Toyo, strong winds will blow from the south into the early evening of the 6th (Monday).

Maximum wind speed (maximum instantaneous wind speed) expected on the 6th
Toyo land 12m/s (25m/s)
Toyo sea 15m/s (25m/s)

"Yamaji wind" The time period that requires caution and the predicted maximum instantaneous wind speed are
25 m/s or more until the beginning of the night of the 6th

#Wave forecast
Wave height expected on the 6th (Monday)
Toyo 1.5 m

Please be careful of landslides, especially in Ainan Town and Uwajima City, which were shaken severely by the Bungo Channel earthquake on April 17th. When at sea, please be careful of strong winds and high waves.

Last day of Golden Week, stormy weather in western Japan, extremely heavy rain in some places, rain clouds heading east

2024/05/06 06:36

Today, the 6th (Monday), the last day of Golden Week, rain clouds associated with a cold front are hanging over western Japan. Extremely heavy rain was observed in Arikawa, Goto Town, Nagasaki Prefecture, with an hourly rainfall of 57.5 mm, the highest amount of rainfall ever recorded in May.



Active after this Rain clouds are expected to pass over western Japan overnight. Localized areas such as Shikoku and Kyushu may experience extremely heavy rain of 50mm or more. Caution and vigilance are required to prevent landslides and flooding of low-lying areas due to heavy rain. If you are returning from a trip during Golden Week, please be careful as transportation and driving may be affected.



Eastern Japan and Northern Japan Rain will become more widespread into the afternoon. The weather is heading downhill, so bring an umbrella with you when you go out.

The predicted maximum temperature is expected to be lower in many places than yesterday on the 5th, with Tokyo at 26c, Osaka at 23c, and Fukuoka at 24c. The temperature in Sapporo is expected to be 18c, 5c lower than yesterday.

Storm warning for Nagasaki and Yamaguchi until tomorrow 6th (Monday)

2024/05/05 19:20

As of 7 p.m. today, the 5th (Sunday), storm warnings have been issued in some areas of Nagasaki and Yamaguchi prefectures.

There is a developing low-pressure system with a front in the Yellow Sea, and it is expected to move toward northeastern China tomorrow, the 6th (Monday). In the coastal waters of northern Kyushu, winds will blow very strongly from the south from late evening today, the 5th (Sunday) to tomorrow morning, the 6th (Monday).

#Wind forecast
Maximum wind speed (maximum instantaneous wind speed) expected from the 5th (Sunday) to the 6th (Monday)

Tsushima Strait 20 meters (30 meters)
Kyushu West Sea 20 meters (30 meters)


/ Active rain clouds associated with a cold front are expected to pass over western Japan tomorrow, the 6th (Monday), so in addition to stronger winds, it is necessary to be careful as locally heavy to very heavy rain will fall. .

On the last day of Golden Week, it rained from Kyushu to Tokai. Also affects U-turns!

2024/05/05 14:36

To the east of Japan, there is a high pressure system moving southeast, and it is spreading around Japan.
On the other hand, there is a low pressure system in northeastern China that is moving east, and there is a low pressure system with a front in the Yellow Sea that is moving northeast.

Towards tomorrow, the high pressure system will gradually move away to the east, and the low pressure system and front will approach from the west.
For this reason, it will gradually rain in many places in Kyushu today, and there will also be places in the Chugoku and Shikoku regions where it will rain at night.

On the 6th (Monday), the last day of tomorrow's Golden Week, rain will spread from the Kinki region to the Tokai region.



Moist from the south Because of this, there is a risk of extremely heavy rain accompanied by thunder in areas along the Pacific Ocean and on the southern slopes of mountains. be careful.



Depending on the region There is a possibility that transportation may be disrupted, so it is best to allow plenty of time.




Golden Week The center of the rain will shift from eastern Japan to northern Japan on the 7th (Tuesday).
The rain and wind are expected to become stronger, especially in the Tokai and Kanto regions, so please be careful.

5th (Sunday) Children's Day - Summer weather under the blue sky - Kyushu's weather is downhill

2024/05/05 06:30

Today, the 5th (Sunday), Children's Day, blue skies will spread across Hokkaido, Chugoku-Shikoku, Okinawa, and other areas, and it will be as sunny as summer.

Under the sunshine, temperatures will rise, and most areas of Honshu will experience summer days with maximum temperatures of 25c or higher.

Also, the temperature is 32c in Yamagata and Fukushima, 31c in Kumagaya and Nagano,
30c in Mito, Maebashi, and Saitama, mainly in Tohoku and Kanto-Koshin. There seems to be a place for it.

Please be careful of heatstroke when participating in outdoor activities.



On the other hand, in Kyushu, where a front and low pressure system are approaching from the west,
the weather will turn downhill into the night. Although it is not on the

mark, it is likely to rain locally at night in Shikoku and the Chugoku region.

If you will be returning home late, please bring an umbrella with you.

Weekly weather: After Golden Week, the weather will be rough in various places

2024/05/04 23:35

Golden Week is finally coming to an end, but on the final day of the holiday, the 6th (Monday, holiday), the weather is expected to turn downhill from the west, and it is expected to rain in the Kanto region on the 7th (Tuesday), the end of the holiday.

Next week, a slow-moving low pressure system will move through the Sea of Japan, so windy conditions will continue in many areas.

6th (Monday/holiday) It will start raining in Hokkaido and western Japan as the
front approaches.

Especially in Kyushu and Shikoku, which are close to the front,
be careful of heavy rain, thunderstorms, and gusts of wind.




It will rain widely from Hokkaido to Shikoku on the 7th (Tuesday) after the holidays.
A large umbrella will be essential during commuting hours.

In northern Japan, Hokuriku, and the Kanto region, the weather will be cloudy and strong winds will continue until around the 9th (Thursday).

Then, the weather will slowly improve from the west as fronts and low pressure systems move eastward.

Blue skies are expected to return nationwide next weekend.

The best time to see the Eta Aquarius meteor shower is before dawn tomorrow or the day after.

2024/05/04 19:30

The Eta Aquarius meteor shower will reach its maximum at around 6 a.m. on the 6th (Monday, holiday) the day after.

The EtaAquarii meteor shower is a meteor shower that is active in early May every year.
The parent object is Halley's Comet, the same as the Orionid meteor shower in October.

In the southern hemisphere, the radiant point is higher and
is known for seeing many meteors.

In Japan, night falls while the radiant point is low, so
you won't see as many meteors as you do in the southern hemisphere, but
it's one of the major meteor showers that can be seen every year.



The EtaAquarii meteor shower, which will reach its peak on the 6th (Monday/holiday), will be active for a relatively long period of time, so the
pre-dawn (predawn to early morning) period on the 5th and 6th will be It looks like it's the best time to see it.

The best time for observation is short, about an hour before dawn.

In Tokyo, the best time to see them is around 2:00 to 3:30.

The most visible meteors will be around 3 o'clock on the 5th and 6th.
It is expected that around 5 to 10 meteors can be observed per hour in dark areas of the sky.

This year, the moonlight will have less influence and the weather will be good, so the night sky will meet
conditions suitable for observation.



When viewing the meteor shower, it is important to be in a location with a wide view of the sky, and
to observe in a dark location with few street lights.

Also, it will be easier to observe it if you adjust your eyes to the darkness and look up in the direction of the
radiant point.

If you are going to observe for a long time, please be sure to wear appropriate clothing as it can get cold at dawn.



At dawn on the 5th (Sunday),
it will be sunny over a wide area
on the Sea of Japan side of Hokkaido and from Tohoku to Chugoku and Shikoku.

On the Pacific side of Hokkaido, on the Sea of Okhotsk side, and from Kyushu to the Nansei Islands, clouds tend to spread easily.
It seems a little difficult to observe meteor showers.

How about observing the meteor shower at the end of Golden Week

*Sunrise time in various places (5th)

Sapporo 4:23
Sendai 4:35
Tokyo 4:45
Niigata 4:43
Nagoya 4:57
Osaka 5:04
Hiroshima 5:16
Ko-chi 5:14
Fukuoka 5:26
Naha 5:49

It rained in western Japan on the last day of Golden Week.

2024/05/04 15:02

There is a high pressure system over the eastern seaboard of Japan, which is spreading around Honshu.
On the other hand, there is a low pressure system moving eastward in northeastern China, and a front is extending eastward and westward in central China.

Currently, there are many cloudy areas around Japan from southern Kyushu to Amami and Okinawa, and although it is raining in some areas, it is mostly sunny in other areas.

Tomorrow, there will be a high pressure area from Hokkaido to the Chugoku and Shikoku regions, and it will be sunny in many places. As the temperature rises, you need to be careful about your physical condition.



Kyushu and Amami+In the Okinawa region, clouds tend to spread due to the influence of low pressure systems and fronts approaching from the west, and the weather is going downhill.
It may start raining in some places in the evening.
Clouds will gradually spread in the Chugoku and Shikoku regions from the afternoon.



After that, the holidays On the final day, the day after tomorrow, the 6th (Monday), rain clouds are expected to spread over western Japan.
Please be aware that in Kyushu, Chugoku, and Shikoku, moist air will enter from the south and there is a risk of heavy rain accompanied by thunder.



Even in Hokkaido, It looks like there will be some places where it will rain, but from Tohoku to the Tokai region, the weather will remain stable during the day.
At night, rain clouds will spread to the Tokai and Hokuriku regions.

Today's weather: Good weather for sightseeing continues across a wide area; be careful of heatstroke

2024/05/04 06:21

Today, the 4th, will be a day of greenery, and high pressure will continue to cover the area, allowing sunlight to reach a wide area. The temperature rises in many places during the day, so you need to be careful about heatstroke.



Hokkaido is Okhotsk The weather is likely to be more cloudy towards the sea. However, there will be no major changes in the weather, and there will be time for sunshine to reach us.
The temperature is lower than yesterday in many places, and in Abashiri it is expected to be 7c, 9c lower than yesterday. Please be careful in choosing your clothes as the cold weather returns.

Pleasant blue skies will spread from Tohoku to western Japan.
There are places in southern Kyushu where there are showers, especially in the morning, so it's a good idea to bring a folding umbrella when you go out.
The temperature will rise during the day, and it will be a summer day with temperatures exceeding 25c in many places.
In inland areas, there are some places where the midsummer day can reach over 30 degrees Celsius, so please take precautions against heatstroke, such as staying hydrated frequently.

Okinawa will have a cloud-dominated sky. There is a possibility of rain showers, so it would be a good idea to have a folding umbrella when going out.