# Typhoon Koguma activity in the Northwest Pacific

> Live situation record from CLSTR: https://clstr.news/situations/typhoon-koguma-activity-in-the-northwest-pacific
> Updated: 2026-10-11T22:41:00.000Z. Sources: 4. Developments: 2.

In early October, a ‘triple typhoon’ situation involving Koguma, Nolo, and Choiwan emerged in the Northwest Pacific, creating potential travel risks for Japan and the Korean Peninsula. Typhoon Koguma was initially projected to intensify significantly, with concerns regarding flight cancellations and maritime operations due to its proximity to Japan.

By October 12, Typhoon Koguma was located near the Ogasawara Islands, moving north at 25 km/h. While the storm was expected to move away from Japan and transition into an extratropical cyclone by October 14, it was forecast to cause high waves along the Pacific coasts of the Kanto and Tohoku regions. In Taiwan, the typhoon's position southeast of Japan was expected to bring a risk of long waves to the Taitung coast and the Hengchun Peninsula, alongside a strengthening northeast monsoon.

## Timeline

### 2026-10-11: Typhoon Koguma moves north near Ogasawara Islands

Typhoon Koguma (Typhoon 29) is moving north near the Ogasawara Islands. While moving away from Japan, high waves are expected in Kanto and Tohoku, while Taiwan prepares for monsoon-related rain and cooling.

2 sources. https://clstr.news/cluster/typhoon-koguma-moves-north-near-ogasawara-islands

### 2026-10-06: Typhoon Koguma and triple typhoon activity pose travel risks to Japan

Three typhoons, including Koguma, are active in the Northwest Pacific, potentially disrupting travel to Japan during the upcoming holiday period despite low direct impact on Korea.

2 sources. https://clstr.news/cluster/typhoon-koguma-and-triple-typhoon-activity-pose-travel-risks-to-japan

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Cite as: Typhoon Koguma activity in the Northwest Pacific. CLSTR, https://clstr.news/situations/typhoon-koguma-activity-in-the-northwest-pacific