TOKYO - Typhoon No. 27 (Choi-wan) was moving north toward the Ogasawara Islands on October 5 while maintaining very strong intensity, with maximum sustained winds of 50 meters per second and a clearly defined eye visible in satellite images as the storm reached the peak of its development. At 9 a.m. on October 5, the large and very strong typhoon was located east of the Ogasawara Islands and moving west-northwest at 20 kilometers per hour.
Its central pressure was 925 hectopascals, with maximum sustained winds near the center of 50 meters per second and maximum gusts of 70 meters per second.
The typhoon is expected to come closest to Chichijima and Hahajima on the night of October 5 as it continues northward.
The Ogasawara Islands are already within the storm's strong-wind zone and are forecast to enter its violent-wind zone between October 5 and October 6.
High seas are also affecting the islands, with a high-wave warning issued for Ogasawara Village. Seas near the Ogasawara Islands have already exceeded 9 meters in some areas, while waves of 6 to 8 meters are forecast around the islands from the night of October 5 through the morning of October 6.
By 9 a.m. on October 6, the typhoon is forecast to continue moving north through waters near the Ogasawara Islands with a central pressure of 945 hectopascals and maximum sustained winds of 45 meters per second. Although it is expected to weaken somewhat, it will remain a very strong typhoon.
The storm is then forecast to shift onto a more northeasterly course. By 9 a.m. on October 7, it is expected to be far east of the Sanriku coast, with a central pressure of 960 hectopascals and maximum sustained winds of 40 meters per second, retaining strong typhoon intensity.
Typhoon No. 27 is expected to transition into an extratropical cyclone by October 8.
As the typhoon moves north, waves and swells will increase over the Pacific east of Japan. Areas of very rough seas with waves exceeding 6 meters are expected to move closer to the Pacific coast from the Kanto region and farther north through October 6.
Ships operating in the affected waters and people taking part in marine leisure activities are being urged to exercise extreme caution as strong winds, high waves and large swells continue.
Source: ウェザーニュース
