As of 15:00 on the 28th (Monday), there are three typhoons, 9 (Saora), 10 (Damrei), and 11 (Haikui), in the vicinity of Japan. It is the first time since September 15 last year that three typhoons have existed at the same time.
The closest typhoon to Honshu is Typhoon No. 10, which is swiftly moving northward over the seas east of Tohoku. Some of the rain clouds outside the typhoon may cover the Pacific Ocean side of northern Japan, but the impact is expected to be limited as the typhoon gradually moves away.
No. 11, which occurred today, is near the Mariana Islands, and No. 9 is in the sea east of the Philippines, and is expected to move northwest after this. Okinawa, which is close to the course, may be affected by typhoons.
▼ Typhoon No. 11 August 28 (Monday) 15:00
Central location Mariana Islands
Size class //
Strength class //
Move Northwest West 10 km/h
Central pressure 996 hPa
Maximum wind speed 18 m/s (near the center)
Maximum instantaneous wind speed 25 m/s
Strong wind area radius 220 km
▼ Typhoon No. 9 August 28 (Monday) 15:00
Central location East of the Philippines
Size class //
Strength class Very strong
Move North 15 km/h
Central pressure 955 hPa
Maximum wind speed 45 m/s (near the center)
Maximum instantaneous wind speed 60 m/s
The radius of the storm domain is 75 km
Strong wind area radius 220 km
▼ Typhoon No. 10 August 28 (Monday) 15:00
Central location Approximately 290km east of Miyako City
Size class //
Strength class //
Movement Northeast 30 km/h
Central pressure 990 hPa
Maximum wind speed 23 m/s (near the center)
Maximum instantaneous wind speed 35 m/s
Strong wind area radius 305 km (390 km east, 220 km west)
» Latest typhoon information
Typhoon No. 11 may approach Okinawa while developing
In the sea area near the Mariana Islands where Typhoon No. 11 occurred today, the sea surface temperature is over 30 degrees Celsius, which is warm enough to supply water vapor. From the end of August to the beginning of September, the Pacific High is expected to intensify, and the typhoon will move northwest as it develops around the edge of the Pacific High.
According to the Japan Meteorological Agency, the center will be south of Okinawa at 3 p.m. on Friday, September 1, with a central pressure of 980hPa and a maximum wind speed of 30m/s near the center. . Typhoons can cause stormy weather in Okinawa, and rain clouds created by the moist and warm air brought by the typhoons can bring heavy rain to the Pacific side of western Japan.
Although there is still uncertainty about the course of the typhoon, we need to pay attention to its trends.
» Radar Wind Mode (Wind Flow)
Possible paths are still predictable
Each thin line in this figure represents the simulation result of the course calculated by meteorological agencies around the world. The results (members) obtained in the process of the ensemble forecast method are posted to give an image of the wide range of possible paths.
Since the Pacific High is strengthening from the east of Japan, most of the members tend to move northwest. After that, there is a wide range, from those heading for the East China Sea through the vicinity of Okinawa, to those heading south to Taiwan and other areas, and those heading north to the south of Honshu, indicating that there are still variations in the course predictions.
Not only the course, but also the timing and power predictions are in a situation where the error is quite large. The error is expected to shrink as the days go by, so please pay attention to future information.
Probability of entering the storm zone of a typhoon
The probability of entering the storm zone of Typhoon No. 11 within 5 days is as follows. (Japan Meteorological Agency)
Nagasaki Prefecture 1 %
Goto 1 %
Kagoshima Prefecture (excluding the Amami region) 1 %
Koshikishima 1%
Satsuma/Osumi region (excluding Koshikishima) 1%
Tanegashima/Yakushima area 1 %
Amami region 16 %
Okinawa main island region 26 %
Northern/Central/Southern Main Island
(excluding Kerama and Aguni Islands) 23 %
Kerama and Aguni Islands 25 %
Kumejima 26 %
Big East Island 4%
Miyakojima region 28 %
Yaeyama region 24 %
Ishigaki Island 24 %
Yonaguni Island 16 %
Typhoon No. 9 headed toward Taiwan with very strong force
Typhoon No. 9, Typhoon No. 10 Expected Course
Typhoon No. 9 is moving north at a slightly faster speed over the sea east of the Philippines. After this, it is expected to pass near Taiwan while maintaining a very strong force, and then move toward the continent with a little less force.In Okinawa, you will need to be careful of strong winds and high waves caused by Typhoon No.9.
Typhoon No. 10 will move away from Japan in the future
Typhoon No. 10 is moving north at a relatively fast speed and is located in the sea within 300 km from Tohoku. Currently, rain clouds outside the typhoon are covering part of northern Japan, but the typhoon is already changing its course to the east and is expected to move further away from the Japanese archipelago, so its impact is considered to be limited.
In coastal areas, be aware that even after the typhoon has left, the effects of high waves will remain.
» Radar Wind Mode (Wind Flow)
The fourth typhoon occurred in August this year
With Typhoon No. 9 and No. 10, there were four typhoons in August this year. (*Hurricane 8 is a hurricane coming from the western longitude.)
The average number of typhoons in August is 5.7, which is the time of the year with the most typhoons. The number of typhoons this year is slightly lower than usual, but Weathernews forecasts that there will be at least 10 more typhoons by the end of the year.
As autumn approaches, it is expected that the number of typhoons that affect the Honshu area will increase, so please prepare for typhoons and heavy rains in preparation for the coming season.
A new typhoon No. 11 occurs
Apart from Typhoon No. 9 and Typhoon No. 10, Typhoon No. 11 occurred in the Mariana Islands at 9:00 on the 28th (Monday).
It is expected to move westward and approach the vicinity of Okinawa. At 9:00 on September 1st (Friday), the center is in the south of Okinawa, the central pressure is 980hPa, and the maximum wind speed near the center is expected to be 30m/s.
Depending on its course after that, it may have an impact on Japan, but there is still an error in the forecast. The error is expected to shrink as the days go by, so please pay attention to future information.
» Radar Satellite Cloud Image Mode
typhoon name
Typhoon names are prepared in advance by member countries of the international organization “Typhoon Committee”, etc., and are given in order of occurrence.
The name of Typhoon No. 9, “Saola,” was proposed by Vietnam, referring to an animal called the Vietnamese antelope. Typhoon No. 10’s name “Damrey” was proposed by Cambodia and is derived from the Khmer word for “elephant”. Typhoon No. 11’s name, “Haikui,” was proposed by China and comes from the Chinese word for “sea anemone.”
» Radar Typhoon Mode
Reference materials, etc.
2023-08-28 07:56:00
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