# Typhoon Krathon approaching Japan

> Live situation record from CLSTR: https://clstr.news/situations/typhoon-krathon-approaching-japan
> Updated: 2026-09-20T00:51:24.000Z. Sources: 5. Developments: 2.

Typhoon Krathon is moving slowly northwest through waters south of Japan. The Japan Meteorological Agency predicts the storm will approach the Kanto-Koshin and Izu Islands regions between the evening of September 21 and the early hours of September 22.

Due to the storm’s slow movement, meteorologists warn of extreme rainfall, with some areas in the Kanto region potentially seeing 24-hour accumulations of 300 mm. In southern Chiba Prefecture, predicted rainfall may exceed 150% of historical maximums. 

The typhoon maintains a central pressure of approximately 970 hPa, with maximum sustained winds of 35 m/s and gusts reaching 50 m/s. While a direct landfall may not occur, the outer circulation is expected to bring severe wind and rain to the Kanto and Tohoku Pacific coastal areas before the system weakens into a temperate low-pressure system by September 23.

## Timeline

### 2026-09-20: Typhoon Krathon threatens Japan with heavy rain and strong winds

Typhoon Krathon is approaching Japan's Kanto region, bringing threats of extreme wind and heavy rainfall that could exceed historical records in Chiba Prefecture.

2 sources. https://clstr.news/cluster/typhoon-krathon-threatens-japan-with-heavy-rain-and-strong-winds

### 2026-09-05: Typhoon Krovanh shifts course toward Japan, impacting southern South Korea

Typhoon Krovanh is moving toward Japan, but its indirect effects continue to cause strong winds, high waves, and damage in Jeju and southern South Korea.

3 sources. https://clstr.news/cluster/typhoon-krovanh-shifts-course-toward-japan-impacting-southern-south-korea

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Cite as: Typhoon Krathon approaching Japan. CLSTR, https://clstr.news/situations/typhoon-krathon-approaching-japan