First published 9/22/2026, 7:38:15 AM · Last updated 9/22/2026, 7:38:15 AM

気象特別警報・警報・注意報

Japan Meteorological Agency (JMA) warnings for Chiba Prefecture: southern areas should watch for landslides; low-lying areas in Chiba Prefecture should watch for inundation; northeast areas should watch for river rises; northeast and southern areas should watch for high waves. Specific advisories listed include heavy rain advisories for several subregions (北西部, 印旛, 東葛飾, 君津) and wave advisories for 銚子市; some advisories for 千葉中央, 千葉市, and 市川市 are marked as cancelled in the provided text.

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: 6/10How 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: 4/10The 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: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

The JMA headline issues multiple cautions for landslides, flooding of low-lying areas, river rises, and high waves across parts of Chiba Prefecture, indicating active hazardous conditions in those subregions.

Location

Sources

気象特別警報・警報・注意報

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