As of 7:00 on Sept 4, 2026 | 1,514 homes damaged, 111 evacuees, rail and flight disruptions
Japan's Cabinet Office has released a preliminary damage report as of 7:00 on September 4, 2026. In the heavy rain that began on August 27, a stationary front over the Sea of Japan intensified and linear rainbands formed repeatedly over the Hokuriku region. Twenty-four-hour rainfall exceeded 300 mm, breaking observation records. A Level 5 Emergency Heavy Rain Warning was issued for Ishikawa and Toyama from 06:20 to 16:20 on August 27, and for Fukui from 04:30 to 11:40 on August 30. As of September 4, 1,514 homes were reported damaged (1 destroyed, 7 half-destroyed, 405 flooded above floor level, 1,098 below floor level, 3 partially damaged). Levees on the Iiyama and Kanamaru rivers in Ishikawa were breached, and emergency repairs have started. Separately, Typhoon No. 24 is moving north west of Amami-Oshima; the Japan Meteorological Agency forecasts it to approach the Okinawa main island area by September 6, reach the Daito Islands on the 7th, and move north of the south of Japan on the 8th–9th. A levee breach on the Iizume River in Aomori also caused flooding. Water outages peaked at about 4,902 households but had all been restored as of September 4. All figures are preliminary and may change.
As of 06:30 on September 4, 55 shelters were open across 17 municipalities in five prefectures, housing 111 evacuees (Aomori 4, Toyama 62, Ishikawa 14, Fukui 0, Kagoshima 31). If Japanese-language evacuation orders and disaster radio are hard to follow, check your municipality's evacuation information and JMA warnings early. For travel, 38 JAL flights were scheduled to be cancelled on September 4, mainly to and from Amami, Tanegashima and Yakushima. Several conventional rail lines remain suspended, and parcel delivery is delayed or halted in some areas. If your home was flooded, you must undergo a damage assessment survey under the Basic Act on Disaster Management — the Cabinet Office preliminary figures do not match the official assessment results. For scrapping a flooded car, transport bureaus were notified on August 28 to accept permanent deregistration applications even when the chassis number is illegible, as long as the vehicle can be identified by documents such as a tax payment certificate.
On Sept 12, 2026 the JMA raised Mt. Tokachidake (Hokkaido) to Eruption Alert Level 3 (do not approach the volcano). Beware large ballistic ejecta within about 3 km of Crater 62-2 — what hikers, travelers and residents should do now.
On September 11, 2026, Japan's Cabinet Office applied the Disaster Victims Livelihood Recovery Support Act to five Chiba cities hit by the August 2026 heavy rain. Households whose homes were destroyed or severely damaged can apply for support payments.
On Sept 9, 2026 Japan's Cabinet Office announced the Disaster Relief Act now applies to Nagoya City, Aichi (from Sept 8) and Yakushima Town, Kagoshima (from Sept 4) after Typhoon No. 24 and frontal heavy rain. Shelters, emergency housing and home repairs are publicly funded — foreign residents and travelers qualify regardless of nationality.
Source:
Cabinet Office of Japan website (Damage report on the heavy rain from August 27, 2026, Typhoon No. 24 and frontal rain)This article was edited and written by freegent Inc. based on the source above.