Tomorrow, the front moves northward; the rainy season may end in Kyushu and other areas; extreme heat and tropical nights return from the west

2024/07/16 12:43

Today, the 16th (Tuesday), the rainy season front is stretching from the continent through eastern Japan to the east of Japan.

Warm and humid air is flowing toward the front,
The atmospheric conditions are very unstable from Kyushu to Tohoku.



As of noon today, rain is falling mainly in Shikoku, Chugoku, Tokai, Kanto, and southern Tohoku, and the rain is getting heavier locally.

In Iwata City, Shizuoka Prefecture, very heavy rain of 77 mm per hour fell at dawn today, breaking the record for the highest rainfall in July.

Today, the front is expected to stagnate near eastern Japan, and the unstable atmosphere is expected to continue mainly in western and eastern Japan.

The rain will continue to come and go, and in some areas,
heavy or very heavy rain accompanied by thunderstorms may fall.

The ground has become loose in some areas due to the heavy rain so far,
so please be careful of future rain patterns.

Also, be careful of gusts of wind such as lightning and tornadoes.




Tomorrow, the 17th (Wednesday), the rainy season front will move north from eastern Japan to northern Japan.

In western Japan, which will be covered by high pressure, many places will have summer skies during the day.

If it's as early as tomorrow, the end of the rainy season may be announced in the Kyushu region.

The temperature will rise during the day, and in Fukuoka it is expected to be a scorching hot day with a temperature of 35 C.

In addition, "tropical nights" are likely to return from tonight, and the minimum temperature tomorrow morning is expected to not fall below 25 C, mainly in Western Japan.

From tonight, sleepless nights will return, so be careful of heatstroke both at night and during the day.




On the other hand, many areas in the Kanto to Tohoku regions where the front is moving north are likely to experience rain tomorrow.

In Kanto, heavy rain and thunderstorms are expected from this evening until tomorrow morning,
in the Hokuriku region from tomorrow morning until early afternoon,
in the Tohoku region, mainly tomorrow afternoon.

Although the rain is expected to last for a short period of time, if heavy rain falls all at once in a short period of time,
even in urban areas, drainage may not be able to keep up, and roads may turn into rivers,
underground shopping malls may be flooded, and underpasses may be flooded.

When heavy rain falls, please avoid underground shopping malls and seek safety by evacuating to the second floor or higher of a sturdy building.

Northern Kyushu: Extremely heavy rain expected this evening; caution against landslides required

2024/07/16 07:14

The rainy season front is stretching from central China to the Tsushima Strait, and is expected to move north to the Korean Peninsula by tonight, the 16th. As warm and humid air flows toward the front, the atmospheric conditions in northern Kyushu are very unstable.
As a result, in northern Kyushu, there is a risk of very heavy rain or heavy rain accompanied by thunderstorms in some areas by the evening of the 16th.
In addition, there is a risk of lightning strikes and strong gusts of wind such as tornadoes late tonight, the 16th.

#Actual rainfall situation
Rainfall from the start of the rain (3am on the 10th) to 5am today, the 16th (preliminary figures from AMeDAS)
Yamaguchi Prefecture
Takezaki, Shimonoseki City: 292.5mm
Hirose, Iwakuni City: 279.0mm
Wada, Shunan City: 279.0mm
Fukuoka Prefecture
Minamiyama, Kurume City: 249.5mm
Tsufukuhonmachi, Kurume City: 244.0mm
Asakura: 243.0mm
Oita Prefecture
Tsubakigahana, Hita City: 235.5mm
Hita City Sanbonmatsu 193.5mm
Kusu 158.5mm
Saga Prefecture
Ureshino 271.0mm
Tosu 239.5mm
Kitayama, Saga city 225.0mm
Kumamoto Prefecture
Minamata 414.5mm
Hitoyoshi 387.5mm
Itsuki 359.5mm
Nagasaki Prefecture
Kibacho, Goto city 418.5mm
Fukue Airport 406.5mm
Mount Unzen 366.0mm



#Expected amount of rain (heavy areas)
+Expected 1-hour precipitation today, the 16th
Yamaguchi Prefecture: 30 mm
Fukuoka Prefecture: 30 mm
Saga Prefecture: 30 mm
Nagasaki Prefecture: 50 mm
Oita Prefecture: 30 mm
Kumamoto Prefecture: 20 mm

+Expected 24-hour precipitation from 6:00 today, the 16th, to 6:00 tomorrow, the 17th
Yamaguchi Prefecture: 80 mm
Fukuoka Prefecture: 80 mm
Saga Prefecture: 60 mm
Nagasaki Prefecture: 180 mm
Oita Prefecture: 80 mm
Kumamoto Prefecture: 40 mm

#Disaster prevention matters
Be on guard against landslides, flooding in low-lying areas, and rising and overflowing rivers. Beware of strong gusts of wind such as lightning strikes and tornadoes.
If there are signs of a developed cumulonimbus cloud approaching, please take steps to ensure your safety, such as moving inside a building.

Tokai region: risk of heavy rains of warning level; be on high alert for landslides

2024/07/16 06:55

The rainy season front is stretching from North China through eastern Japan to the east of Japan. The rainy season front is expected to move north from eastern Japan to northern Japan by tomorrow, the 17th. As warm and humid air flows toward the front, the atmospheric conditions in the Tokai region will be very unstable. In the Tokai region, heavy rain accompanied by thunder and very heavy rain is expected to fall in some areas by tomorrow, the 17th.

In Gifu Prefecture and Shizuoka Prefecture, heavy rain of warning level has already been reported, and in Shizuoka Prefecture, some areas have been issued a landslide warning. In Aichi Prefecture and Mie Prefecture, if the rain clouds develop more than expected or stagnate, heavy rain of warning level may also occur.



# Expected amount of rain (heavy areas)
+ Expected 1-hour precipitation today, the 16th
Aichi Prefecture: 40 mm
Gifu Prefecture: 50 mm
Mie Prefecture: 50 mm
Shizuoka Prefecture: 50 mm

+ Expected 1-hour precipitation tomorrow, the 17th
Aichi Prefecture: 30 mm
Gifu Prefecture: 40 mm
Mie Prefecture: 30 mm
Shizuoka Prefecture: 30 mm

+ Expected 24-hour precipitation from 6:00 today, the 16th, to 6:00 tomorrow, the 17th
Aichi Prefecture: 80 mm
Gifu Prefecture: 100 mm
Mie Prefecture: 80 mm
Shizuoka Prefecture: 150 mm

# Disaster prevention matters
In the Tokai region, please be on high alert for landslides, and be on guard against flooding in low-lying areas, and rising and overflowing rivers. In addition, beware of tornadoes and other strong gusts of wind, lightning, and hail. If there are signs of a developed cumulonimbus cloud approaching, take steps to ensure your safety, such as by moving inside a building.

Western and eastern Japan to be on alert for landslides through tomorrow, the 16th

2024/07/15 18:30

The rainy season front is stretching from the Tsushima Strait through eastern Japan to the east of Japan, and is expected to gradually move north from the west by tomorrow, the 16th. As warm and humid air flows toward the front, there will continue to be areas in western and eastern Japan where the atmospheric conditions will be very unstable.



[Rain forecast]
From western to eastern Japan, heavy rain accompanied by thunder will fall from tomorrow, the 16th, and some areas will experience heavy rain.

#Expected amount of rain (heavy areas)
+Expected 24-hour rainfall from 6:00 p.m. today, the 15th, to 6:00 p.m. tomorrow, the 16th
Northern Kyushu, Southern Kyushu 100 mm
Kansai, Tokai 80 mm
Kanto-Koshin 60 mm
Chugoku, Hokuriku 50 mm
In Western and Eastern Japan, the ground has become loose from the heavy rain so far, so even a small amount of rain may increase the risk of landslides.

[Disaster Prevention]
In Western and Eastern Japan, be on guard against landslides, flooding of low-lying land, and rising and overflowing rivers. Also, be careful of strong gusts of wind such as lightning and tornadoes. If there are signs of a developed cumulonimbus cloud approaching, please take measures to ensure your safety, such as moving inside a building.
In addition, there is a risk of hail, so be careful when managing agricultural crops and agricultural facilities.

Is the end of the rainy season near for western and eastern Japan Rain is moving north as scorching heat and tropical nights return

2024/07/15 16:43

The rainy season front is stretching from the Tsushima Strait through eastern Japan to the east of Japan.

Today, due to the influence of warm and humid air heading towards the front,
the activity of the front is active mainly in western Japan, including Kyushu,
some areas in Kyushu experienced heavy rain.



Tomorrow (Tuesday), the activity of the rainy season front will weaken slightly,
but in western to eastern Japan,
the unstable atmosphere will continue tomorrow due to the influence of humid air.

Even if it does not rain as heavily as today,
itometropolitan areas may experience rain or thunderstorms.

Even if it is sunny, it is a good idea to bring rain gear when going out in preparation for sudden changes in the weather.



However, from the day after tomorrow (Wednesday), the rainy season front is expected to move north and become more likely to stagnate near northern Japan.

As a result, from the middle of this week, it will be cloudy and rainy mainly in northern Japan and Hokuriku,
There will likely be many sunny days in areas from Kanto to the west.

The end of the rainy season is likely to be announced soon,
However, from the middle of this week, scorching heat and tropical nights are likely to return.



From the middle of this week, Kyushu to Kanto will have many tropical nights with temperatures over 35 C during the day and not dropping below 25 C at night.

Please be careful of heatstroke both day and night.

First time in 108 years Naha experiences scorching hot weather for the third consecutive day; heatstroke alert issued

2024/07/15 13:11

Today (15th, Marine Day), Okinawa Prefecture is covered by the Pacific high pressure system, and strong sunlight has been shining down since morning. The highest temperature in Naha City was recorded at 35.3 C by 1:00 p.m. today, making it the third consecutive day of extremely hot weather. This is the first time in 108 years, since 1916, that there have been three consecutive days of extremely hot weather. As Okinawa Prefecture is close to the sea, it is rare for the temperature to reach 35 C or higher, as in Honshu, even in midsummer, and it is very rare for Okinawa to experience three consecutive days of extremely hot weather.



In Naha, there has not been any significant rain since the end of the rainy season in late June, and the intense heat has continued day after day.

Looking at the weekly forecast for the coming weeks, it is expected that the weather will be sunny every day and the intense heat will continue.

When a heatstroke alert is issued, like today,
do not go outside during the daytime when the sun is strong, but spend time in a cool place such as an air-conditioned room.

In addition to staying hydrated,
if you sweat a lot, you should also replenish salt.

Please continue to be vigilant against heatstroke.

Kanto: Be on alert for heavy rain disasters late tonight

2024/07/15 06:30

The Kanto region will be rainy season today, the 15th (Monday, holiday).

The temperature will be higher in the southern coastal areas, and it will feel humid.

Don't forget to take an umbrella when you go out on the last day of the three-day weekend.

In addition, there will be some areas with heavy rain accompanied by thunder in the afternoon.

Please be careful of sudden changes in the weather and the way the rain falls.



The front is stretching from near the Tsushima Strait through eastern Japan to the far east of Japan.

Today, the 15th (Monday, holiday), the front is expected to stagnate near the northern part of the Kanto-Koshin region.

As warm and humid air flows toward the front, the atmospheric conditions will become unstable in the Kanto-Koshin region late tonight on the 15th (Mon., holiday).

In addition, the ground has become loose in some areas due to the rain that has fallen so far.

*Rain forecast (heavy areas)

In the Kanto region, heavy rain accompanied by thunder will fall in some areas late tonight on the 15th (Mon., holiday).

If the rain clouds develop more than expected or if they continue to cover the area, it may become heavy rain that warrants an alert.

Today's predicted 1-hour precipitation
Gunma Prefecture, Kanagawa Prefecture, northwestern and northeastern Chiba: 30 mm

Predicted 24-hour precipitation until dawn tomorrow
Gunma Prefecture, Kanagawa Prefecture: 60 mm

In the Kanto region, please be aware of and be on alert for landslides, flooding of low-lying areas, and rising rivers late tonight on the 15th (Monday, national holiday).

Also, be aware of lightning and gusts of wind. There is a risk of hail, so please be careful when managing agricultural crops and agricultural facilities.

Possibility of "linear precipitation band" occurring in northern Kyushu - Be on high alert for heavy rain disasters through this evening

2024/07/15 06:10

In the northern Kyushu region, please be on high alert for landslides, flooding of low-lying areas, and rising and overflowing rivers through the evening of today, the 15th (Monday, holiday).

In Yamaguchi Prefecture, Fukuoka Prefecture, Saga Prefecture, Nagasaki Prefecture, Kumamoto Prefecture, and Oita Prefecture, a linear rain band may continue to occur through the morning of today, the 15th (Monday, holiday), and the risk of heavy rain disasters may increase sharply.



Warm and humid air is flowing toward the rainy season front stagnating near the Tsushima Strait, making the atmospheric conditions very unstable and the front is becoming more active.

As a result, in the northern Kyushu region, there is a risk of very heavy rain or heavy rain with thunderstorms in some areas around noon today, the 15th (Monday, holiday).

The heavy rain so far has loosened the ground in some places, so even a small amount of rain could cause landslides.

In addition, there is a risk of lightning strikes and strong gusts of wind such as tornadoes late at night today, the 15th (Monday, holiday).

*Actual rainfall (fast report from AMeDAS)

Rain begins at 3am on the 10th (Wednesday) - 5am today, the 15th (Monday, holiday)
Yamaguchi Prefecture
Takezaki, Shimonoseki City: 275.5mm
Hirose, Iwakuni City: 258.0mm
Maemachi, Yamaguchi City: 244.0mm
Fukuoka Prefecture
Omuta: 207.5mm
Yanagawa: 206.5mm
Soeda Town Noda 183.0mm
Oita Prefecture
Tsubakigahana, Hita city 208.5mm
Sanbonmatsu, Hita city 150.5mm
Kuju 139.0mm
Saga Prefecture
Ureshino 254.5mm
Saga Airport 188.0mm
Shiroishi 182.0mm
Kumamoto Prefecture
Minamata 384.5mm
Hitoyoshi 341. 5mm
Itsuki 331.5mm
Nagasaki Prefecture
Kiba-cho, Goto City 371.0mm
Fukue Airport 361.0mm
Mt. Unzen 334.5mm

* Rain forecast (heavy areas)

Today's expected 1-hour precipitation
Yamaguchi Prefecture 40mm
Fukuoka Prefecture 50mm
Saga Prefecture 50mm
Nagasaki Prefecture 5 0mm
Oita Prefecture 50mm
Kumamoto Prefecture 70mm

24-hour precipitation until dawn tomorrow
Yamaguchi Prefecture 80mm
Fukuoka Prefecture 120mm
Saga Prefecture 150mm
Nagasaki Prefecture 150mm
Oita Prefecture 120mm
Kumamoto Prefecture 180mm
If a linear rain band occurs, there is a risk of further rainfall in some areas.

[Disaster Prevention Matters]
Be on high alert for landslides, flooding of low-lying areas, and rising and overflowing rivers.
Beware of strong gusts of wind such as lightning and tornadoes.
If there are signs of a developed cumulonimbus cloud approaching, please take measures to ensure your safety, such as moving inside a building.

Kinki: Be careful of heavy rain this afternoon

2024/07/15 05:50

Today, the 15th (Monday, holiday), the rainy season front is expected to stagnate far east of Japan, passing through the Tsushima Strait, off the coast of San'in, and eastern Japan.

As warm and humid air flows toward the front, the atmospheric conditions in the Kinki region will remain very unstable until late tonight on the 15th (Monday, holiday), and thunderclouds will develop locally.

In addition, while the rain in the Kinki region is currently at a lull, the front is expected to become more active in the afternoon of the 15th (Monday, holiday).

In the Kinki region, if rainclouds develop or stagnate more than expected from late afternoon to late night on the 15th (Monday, holiday), there is a possibility of heavy rain of warning level.

*Rain forecast (heavy areas)

In the Kinki region, heavy rain accompanied by thunder is expected to fall locally from late afternoon to early night on the 15th (Monday, holiday).

Today's predicted 1-hour precipitation
Northern Kinki: 30 mm
Central Kinki: 30 mm

Predicted 24-hour precipitation until dawn tomorrow
Northern Kinki: 70 mm
Central Kinki: 80 mm
Southern Kinki: 80 mm


Please be careful of flooding in low-lying areas, rising rivers, and landslides.

Please be careful of strong gusts of wind such as tornadoes and lightning strikes.

If there are signs of a developed cumulonimbus cloud approaching, please take measures to ensure your safety, such as moving inside a building.

Hokuriku: Rainy season front stagnates, risk of heavy rain warning level tomorrow night

2024/07/15 05:35

The rainy season front is stretching from the Tsushima Strait through the San'in coast and eastern Japan to the far east of Japan.

The front is expected to remain stationary near eastern Japan until tomorrow, the 16th (Tuesday).

Warm, humid air will flow toward the front, causing unstable atmospheric conditions, resulting in heavy rain with thunderstorms in the Hokuriku region, and some areas experiencing heavy rain.

Due to the rain so far and the effects of the Noto Peninsula Earthquake of 2024, the ground has loosened in some areas, and if rain clouds develop or stagnate more than expected, it may result in heavy rain of warning level.

*Rain forecast (heavy areas)

Today's predicted 1-hour precipitation
Niigata Prefecture: 30mm
Toyama Prefecture: 20mm
Ishikawa Prefecture: 20mm
Fukui Prefecture: 20mm

Tomorrow's predicted 1-hour precipitation
Niigata Prefecture: 20mm
Toyama Prefecture: 20mm
Ishikawa Prefecture: 20mm
Fukui Prefecture: 20mm

Predicted 24-hour precipitation until dawn tomorrow
Niigata Prefecture: 60mm
Toyama Prefecture: 60mm
Ishikawa Prefecture: 60mm
Fukui Prefecture: 50mm

In the Hokuriku region, please be on alert for landslides, flooding in low-lying areas, and rising rivers from early tomorrow night, Tuesday the 16th.