After a Level 5 heavy-rain emergency warning was issued in Fukui Prefecture, official data as of 5:00 p.m. on August 30 compiled the number of people covered by evacuation information and the extent of damage. The Japan Meteorological Agency issued emergency warnings for Fukui, Ono, and Katsuyama and urged residents to secure their safety immediately. ([Japan Meteorological Agency](https://www.jma.go.jp/jma/press/2608/30a/20260830_ooame_tokukei.html), checked at 11:25 a.m. on August 30, 2026)

The Emergency Warning Covered Three Cities, Not All of Fukui Prefecture

The emergency warning areas were Fukui, Ono, and Katsuyama. Fukui Prefecture’s official data as of 5:00 p.m. on August 30 separately lists the number of people subject to emergency safety measures and those covered by evacuation orders or evacuation information for older adults and others.

The figure of 343,444 is the number of people covered by evacuation information, not the number of people who actually evacuated.

According to Fukui Prefecture’s official data, 142,519 households, or 343,444 people, were covered by evacuation orders or evacuation information for older adults and others. Separately, 128,321 households, or 302,610 people, were listed as subject to emergency safety measures, while the total for city areas was separately recorded as 131,975 households and 312,829 people. ([Fukui Prefecture Disaster Management Headquarters, 5:00 p.m. update](https://www.pref.fukui.lg.jp/doc/kikitaisaku/fuusuigai/20260829ooame_d/fil/2608301700.pdf), checked at 11:25 a.m. on August 30, 2026)

327 mm, 350.5 mm, and 374.0 mm Are Different Observations

The rainfall figures mentioned in reports about the heavy rain were measured at different locations and compiled at different times. FNN reported 327 mm of 24-hour rainfall in Katsuyama through 8:00 a.m. on August 30, while Weathernews reported that 350.5 mm had been observed in Katsuyama. Fukui Prefecture’s official 5:00 p.m. data lists 374.0 mm of 24-hour rainfall at Shimoarai in Katsuyama and 372.0 mm at Makifukushima in Eiheiji. The three figures therefore cannot be compared or added together as if they were measurements from the same location and time. ([FNN report](https://www.fnn.jp/articles/-/1104138), [Weathernews](https://weathernews.jp/news/202608/300231/))

River, Housing, and Road Damage Also Officially Recorded

Fukui Prefecture’s official data as of 5:00 p.m. on August 30 included the following damage:

  • Flooding, overflow, and internal flooding occurred at 26 locations along 23 rivers, with flooding of roads and farmland also confirmed.
  • Housing damage included 14 cases of flooding above floor level and 80 cases of flooding below floor level.
  • Restrictions were in place at 55 locations across 37 roads, of which 21 had been lifted.
  • Casualties totaled 0 deaths, 0 serious injuries, and 2 minor injuries.

The reference time for the current data is 5:00 p.m. on August 30. Because the disaster is ongoing, readers should check whether subsequent official updates have been issued for warnings, evacuation information, and road conditions at the time of publication. ([Fukui Prefecture Disaster Management Headquarters, 5:00 p.m. update](https://www.pref.fukui.lg.jp/doc/kikitaisaku/fuusuigai/20260829ooame_d/fil/2608301700.pdf), checked at 11:25 a.m. on August 30, 2026)