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Recorded event

Recorded event

Meteorological case report published

The Japan Meteorological Agency published a consolidated account of the August rainfall.

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This later documentation joins the same timeline without moving the storm into September.

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Japan Meteorological AgencyPrimary record

Meteorological case record for August 13-14

jma.go.jp

Documents the milestone and distinguishes the event date from the report date.

Published: 9/16/2026
Source checked: 9/20/2026

Revision 1 / Reviewed 9/20/2026

Connected timelines

Chiba rainfall: the storm and the later report