Weather forecast for today, Wednesday 30th: The weather is improving and sunshine is returning in many areas. Okinawa is on alert for heavy rain, strong winds, and high waves.

2024/10/30 08:43

A low pressure system with a front is moving northeastward over the southern seas of Japan. As of 8:00 a.m. today, it is raining in the Kanto, Tohoku and Hokuriku regions, which are close to the low pressure system.



In the Kanto region, the rain will stop before noon, and many areas will see the sunshine return in the afternoon. In the Tohoku and Hokuriku regions, rain clouds will remain until the afternoon and some areas will see rain, but the weather will gradually improve. Please be careful not to forget your umbrella on the way home.

Although it rained from early morning to dawn in western Japan, it will be mostly sunny during the day, and the sunshine will reach the area and the temperature will rise. In Kochi, Shikoku and Kyushu, it is likely to be a summer day of over 25 C.

In Hokkaido, rain is likely to fall in the evening and at night due to the influence of a low pressure system moving through the Sea of Japan. It would be reassuring to have a folding umbrella.



In Okinawa and the Sakishima Islands, heavy rain accompanied by thunder will fall in some areas due to the influence of warm and humid air around Typhoon No. 21. Typhoon No. 21 is expected to approach the Sakishima Islands with very strong force, pass Taiwan on the 1st, and turn into a temperate cyclone in the East China Sea on the 2nd. In the Sakishima Islands and Okinawa Island, please be on guard for heavy rain, strong winds, and high waves accompanied by swells through the 1st.

Typhoon No. 21 approaches the Sakishima Islands with extremely strong force, causing severe winds at sea

2024/10/30 08:07

As of 6:00 a.m. today, Wednesday the 30th, Typhoon No. 21 is moving west-northwest over the sea east of the Philippines with very strong force.

#Typhoon No. 21 6:00 a.m., Wednesday the 30th
====================
Center location East of the Philippines
Size Large
Movement West-northwest 15 km/h
Central pressure 930 hPa
Maximum wind speed 50 m/s (near the center)
Maximum instantaneous wind speed 70 m/s
=====================

The coastal waters of the Sakishima Islands are already rough with swells, and there is a risk of violent swells over the course of the day. In addition, the main island of Okinawa is also experiencing high waves with swells.
Typhoon 21 is expected to develop and move northwestward, so please be on high alert for heavy rain, strong winds, and high waves from today, the 30th, to the 1st on the main island of Okinawa and the Sakishima Islands.

#Wave forecast
Expected wave height on the 30th
Okinawa main island area: 4 meters with swell
Miyakojima area: 6 meters with swell
Yaeyama area: 7 meters with swell

Expected wave height on the 31st
Okinawa main island area: 5 meters with swell
Miyakojima area: 8 meters with swell
Yaeyama area: 9 meters with swell

Expected wave height on November 1st
Okinawa main island area: 5 meters with swell
Tor with swells
Miyakojima region 6 meters with swells
Yaeyama region 7 meters with swells

#Wind forecast
Wind direction and maximum wind speed (maximum instantaneous wind speed) predicted on the 30th
Miyakojima region East wind 18 meters (30 meters)
Yaeyama region East wind 20 meters (30 meters)

Wind direction and maximum wind speed (maximum instantaneous wind speed) predicted on the 31st
Miyakojima region East wind 20 meters (30 meters)
Yaeyama region Direction: East, then southeasterly winds 25 meters (35 meters)

Wind direction and maximum wind speed (maximum instantaneous wind speed) expected on November 1st
Miyakojima region: southeasterly winds 17 meters (30 meters)
Yaeyama region: southeasterly winds 20 meters (30 meters)

#Rain forecast
The expected 1-hour precipitation on the 30th is heavy in some areas,
Yaeyama region: 30 mm

The expected 1-hour precipitation on the 31st is heavy in some areas,
Yaeyama region: 40 mm

30th The expected 24-hour rainfall from 6:00am on the 31st will be heavy in some areas,
Okinawa main island area: 80mm
Miyakojima area: 80mm
Yaeyama area: 100mm

Then, the expected 24-hour rainfall from 6:00am on the 31st to 6:00am on November 1st will be heavy in some areas,
Okinawa main island area: 50mm
Miyakojima area: 80mm
Yaeyama area: 120mm

#Tide level forecast
Highest tide level expected on the 31st
Yaeyama area: 1.4m above sea level

Weather improving from the west, temperatures rising under the sunshine. Weather forecast for tomorrow, Wednesday 30th.

2024/10/29 18:40

Tomorrow, the 30th (Wednesday), rain will remain in some areas until morning, but the sunshine is likely to return in the afternoon, mainly in the Tokai and Western Japan.

In the Nansei Islands, where Typhoon 21 is approaching, be careful of sudden heavy rain, lightning strikes, and strong winds.

In Hokkaido, rain will begin to fall in some areas, mainly in the northern part of the island, in the afternoon.
Please be aware of changes in the weather. It is a good idea to have a folding umbrella when going out.



Today, the 29th (Tue), the autumn rain front stretching south of Honshu is bringing rain to eastern and western Japan.

A low pressure system is expected to form near the Izu Islands on the front by the morning of tomorrow, the 30th (Wednesday).

Localized heavy rain and thunderstorms are likely to occur in the coastal areas of Kanto and the Izu Islands, which are close to the low pressure system.
Be careful of the rain during commuting hours.

The low pressure will move eastward at night, so the weather will improve from the west, and the afternoon will be sunny, mainly in Tokai and Western Japan.



The temperature will rise from today in many places, mainly in Western Japan, where the sun will reach from the morning.

Today in Tokyo, it felt chilly even during the day, but tomorrow will be comfortable.

It will rise to 25 C in Nagoya and 28 C in Kagoshima, and the last spurt of October is expected to be a summer day.

Even in places where it is hot during the day, the temperature will drop as the sun goes down.

It is a good idea to wear clothes that can adjust to the temperature difference between daytime and nighttime.

Heavy rain in Chiba Prefecture. Rain will remain in some areas during tomorrow's commute to work or school.

2024/10/29 17:18

Today, the 29th (Tue), the autumn rain front has moved slightly north to the south and east of Japan, and the area where rain is falling has expanded from west to east Japan.
Rain is falling widely, mainly on the Pacific side of Kyushu to Kanto.
Tonight, rain will also start falling in Hokuriku and southern Tohoku.

Tomorrow, the 30th (Wed), the autumn rain front will extend to the south and east of Japan, and a low pressure system on the front is expected to develop east of Japan and move northeast.
Tomorrow, the 30th (Wed), there is a risk of heavy rain accompanied by thunderstorms in some areas along the coast of Chiba Prefecture.



In the morning, the rain will stop in some areas of northern Kyushu and Chugoku, while it will rain in many areas of southern Kyushu, Shikoku, Kinki and Tohoku.
In eastern Japan, such as Kanto, rain is expected to remain during the morning commute to work and school. The rain will get heavier in some areas along the coast of Chiba Prefecture.
It is best to leave with plenty of time to spare.
The rain will stop in many areas in the afternoon, and sunshine will return to many areas during the day.
Rain is expected to remain in some areas along the coasts of Kanto, Hokuriku and Tohoku.

Typhoon No. 21 brings rough weather to Okinawa; localized heavy rains are expected in areas around Honshu due to increased frontal activity over the three-day holiday weekend

2024/10/29 16:58

Over the next week, there will be many cloudy and rainy days due to the autumn rain front and Typhoon No. 21.

#Typhoon No. 21 approaches the Sakishima Islands with very strong force
Typhoon No. 21 will be very strong east of the Philippines at 9:00 a.m. tomorrow, Wednesday the 30th.
The day after tomorrow, Thursday the 31st, it will be very strong with a central pressure of 925 hPa and is expected to move northwest south of Okinawa.
There is a possibility that it will approach the Sakishima Islands at the peak of its development.
After making landfall in Taiwan, the typhoon will lose strength rapidly and reach South China at 9:00 a.m. on Friday, November 1st with a central pressure of 990 hPa.
It is then expected to change course to the northeast and turn into a temperate cyclone in the East China Sea.




#Okinawa will experience rough weather, especially in the Sakishima Islands
With the approach of a typhoon, very strong winds will blow in the Sakishima Islands from tomorrow, the 30th (Wednesday), and some areas will experience strong winds on the 31st (Thursday). Be on guard against strong winds.
The sea will be very rough from tomorrow, the 30th (Wednesday) to around November 1st (Friday), and it is also necessary to be on guard against high waves with swells.
In addition, depending on the degree of development of rain clouds, there is a risk of heavy rain of warning level on the main island of Okinawa from tomorrow, the 30th (Wednesday), and in the Sakishima Islands from the day after tomorrow, the 31st (Thursday). Be careful of landslides, flooding of low-lying land, and rising rivers.





#Stimulating the front, there is a risk of heavy rain of warning level around Honshu
Tomorrow, the 30th (Wednesday), the autumn rain front is expected to extend to the south of Japan, and a low pressure system on the front is expected to move eastward to the east of Japan.
Many places from Kyushu to the Pacific side of Shikoku and Kinki to Tohoku will have rain in the morning, but more places will stop by the afternoon. The sunshine is expected to return to Kyushu. There will be some rain remaining in the coastal areas of Kanto, Hokuriku, and Tohoku.
On Halloween, the 31st (Thursday), Kyushu and Shikoku are likely to rain, and depending on the activity of the front, heavy rain will occur mainly in southern Kyushu. Other areas are expected to receive sunshine.
As November begins, the front will move north again near the archipelago.
Rain is expected in Western Japan and Tokai on January (Friday), Kyushu to Tohoku on the 2nd (Saturday), Shikoku, Kinki, Eastern Japan, and southern Tohoku on the 3rd (Sunday), and Hokuriku and the Sea of Japan side of northern Japan on the 4th (Monday).
From the day after tomorrow, the 31st (Thursday) to around November 2nd (Saturday), warm and humid air will flow toward the autumn rain front extending near Honshu, and the activity of the front will become more active. There is a risk of heavy rain of warning level in Western Japan and the Sea of Japan side of eastern Japan. Please pay attention to the latest information.

Typhoon No. 21: On October 31st, it was extremely strong and approached the Sakishima Islands of Okinawa at 925 hPa.

2024/10/29 12:35

Today, the 29th (Tuesday), the large and powerful Typhoon No. 21 is moving west-northwest east of the Philippines while rapidly developing.
As of 9:00 a.m., the central pressure is 965 hPa, a decrease of about 20 hPa in the past 24 hours.
The sea surface temperature in the ocean area along the typhoon's path is still high, and the typhoon may develop further and approach the Sakishima Islands with very strong force.



In the future, Typhoon No. 21 will move west-northwest east of the Philippines while maintaining its strong force.
Tomorrow, the 30th (Wednesday), at 9:00 a.m., it is expected to become very strong east of the Philippines, with a central pressure of 945 hPa.
It will further develop from here, and at 9 a.m. on the 31st (Thursday), it will be very strong with a central pressure of 925 hPa, and will move northwest south of Okinawa.
It may approach the Sakishima Islands at the peak of its development.

After making landfall in Taiwan, the typhoon will rapidly lose strength and is expected to reach southern China at 9 a.m. on November 1st (Friday) with a central pressure of 990 hPa.
It will then change course to the northeast and turn into a temperate cyclone in the East China Sea.



In the Sakishima Islands, be on alert for strong winds and high waves from tomorrow, the 30th (Wednesday) to around November 1st (Friday).
With the approach of the typhoon, very strong winds will blow from tomorrow, the 30th (Wednesday), and some areas are expected to experience storms on the 31st (Thursday).
The maximum instantaneous wind speed expected from tomorrow, the 30th (Wednesday), is 30 meters, and the day after tomorrow, the 31st (Thursday), is 35 meters. Be on guard against storms.
In addition, the coastal waters of the Sakishima Islands are rough with swells, and there is a risk of heavy seas from tomorrow, the 30th (Wednesday) to around November 1st (Friday).
The wave height is expected to be 7 meters tomorrow, the 30th (Wednesday), and 8 meters the day after tomorrow, the 31st (Thursday). Be on guard against high waves with swells.
The waves will be high with swells on the main island of Okinawa, and will gradually become rougher, with waves reaching 4 meters tomorrow, the 30th (Wednesday). The wave height is expected to be 5 meters on the 31st (Thursday). Depending on the course of the typhoon, there is a risk of heavy rains that could trigger a warning from the day after tomorrow, the 31st (Thursday) to around November 1st (Friday).



Depending on the degree of development of rain clouds, there is a risk of heavy rains that could trigger a warning on the main island of Okinawa until tomorrow, the 30th (Wednesday), and in the Sakishima Islands until the day after tomorrow, the 31st (Thursday). Please be careful of landslides, flooding of low-lying areas, and rising rivers.

Typhoons No. 20 and No. 21 occur in succession in late October. Linear precipitation band occurs in Miyazaki. Weather and temperature summary (October 20th to October 26th)

2024/10/29 08:31

#Summary of the weather for this period (October 20th to October 26th)
The average temperature continued to be higher than normal nationwide, with most areas being 2 C higher, as warm air easily flowed in. Some areas on the Pacific side of Hokkaido and west of Kanto were 3 C higher than normal.

The amount of precipitation was more than twice the normal amount, mainly on the Pacific side of Hokkaido and in Kyushu. In particular, areas on the southeastern side of Kyushu, such as Miyazaki, experienced linear precipitation bands and more than four times the normal amount of rain. In Okinawa, due to the influence of humid air around Typhoon 20, Naha received more than five times the normal amount of rain.

The amount of sunshine was higher than normal in northern Japan due to the high pressure system. On the other hand, there was little sunshine in eastern and western Japan and Okinawa, and most areas were below normal. In southern Kyushu, such as Miyazaki and Kagoshima, it did not reach 40% of the normal amount.



#Characteristics of pressure distribution
On the 20th, a cold front moved south to the Pacific Ocean, temporarily creating a pressure distribution of high pressure in the west and low pressure in the east. On the 21st, high pressure moved east over the sea east of Japan. A low pressure system formed near North China and moved east. On the 22nd, high pressure system moved northeast-northeast east of the Kuril Islands. A low pressure system moved from the East China Sea to the Tsushima Strait. Typhoon No. 20 formed at 3:00 a.m. east of the Philippines. On the 23rd, a low pressure system developed in the Sea of Japan and moved northeast. A cold front extending from the low pressure system passed through the Japanese archipelago. The large typhoon No. 20 developed and moved northwest over the sea east of the Philippines. On the 24th, a low pressure system with a front passed through the Mamiya Strait and Sakhalin and moved northeast to the Sea of Okhotsk. Typhoon 20 moved west near the Philippines. On the 25th, a high pressure system moved east across the Sea of Japan. A front stagnated over the ocean south of Japan. Typhoon 21 formed in the Mariana Islands. On the 26th, a front stagnated from the East China Sea to the ocean south of Honshu. The large typhoon 21 moved west over the ocean east of the Philippines. A cold front extending from a low pressure system in the Sea of Okhotsk passed near Hokkaido.

#Precipitation
The first snow was observed in Sapporo, Abashiri, and Obihiro by the morning of the 20th. Due to the influence of the front and humid air, heavy rain fell in Naze, Amami City, Kagoshima. On the 21st, rain clouds developed in southern Kyushu. Rain continued to fall in Kagoshima and Miyazaki from the morning, and the rain intensified mainly on the eastern to southeastern slopes, resulting in torrential rain. On the 22nd, a linear rain band appeared in Miyazaki Prefecture, and extremely heavy rain continued to fall. Record short-term heavy rain information was announced for Miyazaki Prefecture and Oita Prefecture. On the 23rd, rain clouds moved from western Japan to eastern Japan due to the eastward movement of a low pressure system and front. Rain also fell over a wide area in northern Japan, with localized heavy rain. In Hokkaido, the daily rainfall exceeded 200 mm in some places, making it a record heavy rainfall for October. On the 24th, very heavy rain fell in the Nansei Islands, and in Motobu Town, Okinawa Prefecture, the daily rainfall was 216.5 mm, resulting in heavy rain. On the 25th, rain fell in southern Kyushu and the Nansei Islands. Rain clouds developed near the front. Heavy rain was observed in Kagoshima Prefecture. On the 26th, the rain temporarily intensified in the Izu Islands, Tanegashima, and Yakushima near the front, and some places experienced heavy rain.

#Temperature
On the 20th, cold air flowed in by the morning. The Kanto region also remained at around 20 C during the day, and the highest temperature in central Tokyo was 22.7 C, observed just after the date changed. On the 21st, the morning was the coldest of the season over a wide area. More than 100 locations recorded their first winter days of the season. The coldest of the season was also in central Tokyo, at 11.5 C, the same as early November. On the 22nd, some areas on the Pacific side of eastern and western Japan experienced summer days, while clouds spread from the morning on the Sea of Japan side, and temperatures did not rise much compared to the Pacific side. On the 23rd, the highest maximum temperatures in the country were in Awaji City and Gunke in Hyogo Prefecture (the highest ever recorded in October) and Kitadaito Village in Okinawa Prefecture, where the temperature rose to 31.1 C. Sakai City in Osaka Prefecture recorded 30.6 C, and Komatsu City in Ishikawa Prefecture recorded 30.1 C, the latest midsummer days since statistics began. On the 24th, Tokyo recorded 26.3c, the 153rd summer day of the year, and Sendai recorded 25.2c, the first summer day in late October in 8 years. On the 25th, warm air flowed from Western Japan to the Tokai region, causing the temperature to rise. It became a summer day in sunny areas. On the 26th, only 79 locations experienced a summer day.

The autumn rain front moves north, expanding the rainy area. How long will the rain last

2024/10/29 06:21

The autumn rain front is stretching over the southern seas of Japan. Today, the 29th (Tue), the front will move northward, and it is expected that eastern and western Japan will be prone to rain in the afternoon. Okinawa will see intermittent rain, and some areas will experience heavy rain with thunder.

The maximum temperature will not reach 20 C in Kanto and Tokai, and will be similar to November. Temperatures from Kinki to Kyushu will also be around 20 C.



Tomorrow, the 30th (Wed), a low pressure system will form on the autumn rain front and move eastward to Japan. Rain will remain in Kanto around noon tomorrow, but the weather will improve from the west.



Tomorrow, summer days of over 25 C will return to areas west of the Tokai region, with temperatures of 25 C in Nagoya and Hiroshima, and 27 C in Kochi, and it looks like temperatures will return to a level where you can get a little sweaty.

Typhoon No. 21 will approach Okinawa and the Sakishima Islands between Thursday the 31st and Friday the 1st, with wind speeds exceeding 60 m/s

2024/10/28 22:14

Looking at the Himawari weather satellite, the clouds of the large typhoon No. 21 (Konrei) have become quite dense.



As of 9:00 p.m. today, Monday the 28th, it is moving slowly west-southwest over the sea east of the Philippines with a storm area. It is expected to enter an area of development after this, and develop into a "strong" storm tomorrow, Tuesday the 29th, and a "very strong" storm the day after tomorrow, Wednesday the 30th, and approach Taiwan and the Sakishima Islands of Okinawa on Thursday the 31st.



On the 30th (Wednesday), the central pressure is expected to be 935hPa, with a maximum instantaneous wind speed of 65m/s, and on the 31st (Thursday), the central pressure is expected to be 950hPa, with a maximum instantaneous wind speed of 60m/s. The storm zone is expected to be more than 200km from the center, and the Sakishima Islands in Okinawa may be in the storm zone. In the Sakishima Islands, caution is required for stronger rain and wind from the 31st (Thursday) to November 1st (Friday).

The typhoon itself is expected to make landfall in Taiwan, weakening rapidly, and then on the 1st (Friday), the central pressure will be 996hPa and weakening. It is expected to turn into a tropical depression in the East China Sea on the 2nd (Saturday).



The peak is expected to be on Thursday the 31st to Friday the 1st, but waves are expected to get high from an early stage. In the Sakishima Islands of Okinawa, waves are expected to reach 4m tomorrow, Tuesday the 29th, and 6m on Wednesday the 30th, with heavy swells. High waves are expected to gradually enter the waters on the Pacific side, including the Izu Islands. It seems that caution is needed not only for rain and wind, but also for high waves.

Typhoon No. 21 will approach Okinawa and the Sakishima Islands between Thursday the 31st and Friday the 1st, with wind speeds exceeding 60 m/s

2024/10/28 22:14

Looking at the Himawari weather satellite, the clouds of the large typhoon No. 21 (Konrei) have become quite dense.



As of 9:00 p.m. today, Monday the 28th, it is moving slowly west-southwest over the sea east of the Philippines with a storm area. It is expected to enter an area of development after this, and develop into a "strong" storm tomorrow, Tuesday the 29th, and a "very strong" storm the day after tomorrow, Wednesday the 30th, and approach Taiwan and the Sakishima Islands of Okinawa on Thursday the 31st.



On the 30th (Wednesday), the central pressure is expected to be 935hPa, with a maximum instantaneous wind speed of 65m/s, and on the 31st (Thursday), the central pressure is expected to be 950hPa, with a maximum instantaneous wind speed of 60m/s. The storm zone is expected to be more than 200km from the center, and the Sakishima Islands in Okinawa may be in the storm zone. In the Sakishima Islands, caution is required for stronger rain and wind from the 31st (Thursday) to November 1st (Friday).

The typhoon itself is expected to make landfall in Taiwan, weakening rapidly, and then on the 1st (Friday), the central pressure will be 996hPa and weakening. It is expected to turn into a tropical depression in the East China Sea on the 2nd (Saturday).



The peak is expected to be on Thursday the 31st to Friday the 1st, but waves are expected to get high from an early stage. In the Sakishima Islands of Okinawa, waves are expected to reach 4m tomorrow, Tuesday the 29th, and 6m on Wednesday the 30th, with heavy swells. High waves are expected to gradually enter the waters on the Pacific side, including the Izu Islands. It seems that caution is needed not only for rain and wind, but also for high waves.