Typhoon No. 17 is moving northwest of Chichijima. Typhoon No. 18 is affecting Sakishima, Okinawa Prefecture – Weather News

2024-09-30 07:50:00

2024/09/30 16:50 Weather News

There are two typhoons near the Japanese archipelago, among which Typhoon No. 17 (Chevrolet) is moving towards the northwest of the Ogasawara Islands and Chichijima Island. It will continue to move northward and is expected to move in the sea east of the Kanto region tomorrow, October 1 (Tuesday).

Another typhoon, Typhoon 18 (Krathong), has become a huge and extremely powerful force and continues to develop, and is expected to reach its peak tomorrow. The intensity will weaken after that, but it is likely to approach Okinawa and the Sakishima Islands in the second half of the week.
» Latest typhoon information

Typhoon No. 17 leaves the Ogasawara Islands and will move to eastern Kanto tomorrow

▼Typhoon No. 17 at 15:00 on September 30 (Monday)
Central location: about 130 kilometers west-northwest of Chichijima Island
Size class//
Strength level//
Moving North 25 km/h
Central air pressure 998 hPa
Maximum wind speed 20 m/s (near the center)
Maximum instantaneous wind speed 30 m/s

This afternoon, Typhoon No. 17 approaches the Ogasawara Islands. The maximum instantaneous wind speed observed in Chichijima was 26.0m/s at 12:31. The intensity of the rain was temporary and did not turn into heavy rain. The waves are high and Ogasawara Village has issued a wave warning.

The typhoon will continue to move northward and move away from the Ogasawara Islands during the night. Even if the strong winds and heavy rain subside, you still need to be wary of waves and swells.

Tomorrow, its course is expected to change slightly to the east and continue to move north, crossing the East China Sea from the Kanto region to the Pacific side of the Tohoku region. Its relatively small size and its center are expected to be far away from land, so the area of ​​impact is thought to be narrow. However, in areas such as the southern Izu Islands and Sobo in Chiba Prefecture, precautions should be taken to protect against rain and strong winds. Please be aware of large waves in coastal areas.

Tomorrow 2 is expected to arrive in the waters east of Hokkaido on Wednesday and transform into an extratropical cyclone.
» Radar wind mode (wind flow)

Typhoon No. 18 approaches Okinawa, its path is unknown after the first island

▼Typhoon No. 18 September 30 (Monday) 15:00
Central location: Strait of Strait
Large size class
The intensity level is very strong
Move northwest west 10 km/h
Central air pressure 935 hPa
Maximum wind speed 50 m/s (near the center)
Maximum instantaneous wind speed 70 m/s

Super Typhoon No. 18 (Kratong) is moving westward through the Bashi Channel. It is crossing an area with higher sea surface temperatures and favorable wind conditions for development, and is expected to develop further. A peak development is expected tomorrow, with the central pressure expected to reach 925 hPa and the maximum wind speed near the center reaching 50 m/s.

Thereafter, it will weaken as it approaches Taiwan, but is expected to gradually turn eastward and approach Okinawa’s Sakishima Islands in the second half of this week. As the typhoon approaches Okinawa, especially the Sakishima Islands, there is a risk of strong winds, heavy rain, and huge waves. The wind will start to blow as early as the day after tomorrow (Wednesday). Please make preparations for typhoon as early as possible, such as storing items that are easily blown away by the wind indoors.

It is expected to continue moving northward after reaching the East China Sea, but its course and intensity are unknown. As the movement of the East China Sea slows down, it is possible that moist air will continue to flow from Okinawa main island into western Japan, leading to increased rainfall, or this may also occur with a front stationary in the East China Sea. Please pay attention to follow-up information.

The probability of entering the typhoon storm zone

The following are forecast areas for counties with a probability of entering the typhoon strong wind area of ​​more than 10% in the next five days. (Japan Meteorological Agency)
Miyakojima area 21%
Yaeyama area 42%
Ishigaki Island area 38%
Yonaguni Island area 42%

The probability of entering the typhoon storm zone

Pay attention to typhoons in autumn

This is the eighth typhoon to occur this month and the first since Typhoon No. 17 which occurred on Friday the 27th. The number of typhoons in September is higher than usual.

Autumn typhoons not only frequently land in Japan, but they are often very powerful as they approach. October is the typhoon season, so be sure to be prepared for typhoons and heavy rains.
» Radar satellite cloud image mode

Typhoon name

For the names of typhoons that occur in the northwest Pacific or the South China Sea, 140 names have been prepared in advance, proposed by the member countries of the international organization “Typhoon Committee”, and assigned in order of names.

The name of Typhoon No. 18 “Krathon” was proposed by Thailand and originated from the name of a fruit (English name: santol). The name of Typhoon No. 17 “Jieyan” (제비) was proposed by South Korea and is derived from the Korean word “swallow”.
» Radar Typhoon Mode

Reference materials, etc.

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