First published 9/23/2026, 10:08:15 PM · Last updated 9/23/2026, 10:08:15 PM

竜巻注意情報（目撃情報付き）

Japan Meteorological Agency (JMA) issued a tornado advisory (with a sighting report) for 上川地方 (Kamikawa region) and 留萌地方 (Rumoi region). The advisory lists multiple subregions (上川北部, 上川中部, 上川南部, 留萌北部, 留萌中部) and warns that conditions are favorable for tornadoes and violent gusts. It advises people to watch the sky, move indoors to sturdy buildings if signs of cumulonimbus clouds appear (thunder or sudden wind changes), and warns of lightning, hail, and sudden heavy rain.

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

JMA explicitly warns of possible tornadoes, severe gusts, lightning, hail, and sudden heavy rain in the named regions and instructs people to take protective actions (move to sturdy buildings when signs appear). The advisory signals an immediate local safety risk for people and property in the listed areas.

Location

Sources

竜巻注意情報（目撃情報付き）

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