Japan: Flood: 2026/08/13
| Period | 2026/08/13 |
|---|---|
| Country or District | Japan |
| Event Type | Flood |
| Outline | Heavy rain pounded eastern Japan on the evening of13 August 2026 and continued into early 14 August, prompting the weather agency to issue a Level 5 warning, the highest on its scale, for downpours in more than one-third of the municipalities in Chiba Prefecture near Tokyo. Three deaths have been confirmed as a result of the flooding. |
| Summary | ||
|---|---|---|
| Human Impact | Physical Impact | Others |
| Chiba Prefecture 2026/09/01 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 44 |
Completely destroyed houses: 7 Partially destroyed houses: 1,262 Houses with partial damage: 149 Houses with water above floor level: 1,409 Houses with water below floor level: 2,415 |
|
| Chiba Prefecture 2026/08/25 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 44 |
Completely destroyed houses: 3 Partially destroyed houses: 302 Houses with partial damage: 87 Houses with water above floor level: 2,218 Houses with water below floor level: 1,987 |
|
| Chiba Prefecture 2026/08/24 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 44 |
Completely destroyed houses: 3 Partially destroyed houses: 302 Houses with partial damage: 80 Houses with water above floor level: 2,179 Houses with water below floor level: 1,960 |
|
| Chiba Prefecture 2026/08/20 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 44 |
Completely destroyed houses: 3 Partially destroyed houses: 135 Houses with partial damage: 51 Houses with water above floor level: 1,871 Houses with water below floor level: 1,630 |
|
| Chiba Prefecture 2026/08/19 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 42 |
Completely destroyed houses: 3 Partially destroyed houses: 78 Houses with partial damage: 49 Houses with water above floor level: 1,206 Houses with water below floor level: 1,489 |
|
| Chiba Prefecture 2026/08/18 | ||
| Dead: 13 Missing: 1 Seriously injured: 2 Slightly injured: 35 |
Completely destroyed houses: 3 Partially destroyed houses: 14 Houses with partial damage: 49 Houses with water above floor level: 1,105 Houses with water below floor level: 1,209 |
|
| Chiba Prefecture 2026/08/18 | ||
| Dead: 11 Missing: 2 Seriously injured: 2 Slightly injured: 34 |
Completely destroyed houses: 2 Partially destroyed houses: 14 Houses with partial damage: 45 Houses with water above floor level: 1,031 Houses with water below floor level: 1,109 |
|
| Chiba Prefecture 2026/08/17 | ||
| Dead: 10 Missing: 2 Seriously injured: 2 Slightly injured: 29 |
Completely destroyed houses: 2 Partially destroyed houses: 12 Houses with minor damage: 2 Houses with water above floor level: 933 Houses with water below floor level: 901 |
|
| Cabinet Office 2026/08/16 | ||
| Dead: 8 Missing: 1 Seriously injured: 3 Slightly injured: 23 |
Completely destroyed houses: 1 Half-collapsed houses: 23 Houses with water above floor level: 597 Houses with water below floor level: 490 Houses with partial damage: 4 |
|
| Fire and Disasater Management Agency 2026/08/15 | ||
| Dead: 5 Missing: 1 Seriously injured: 5 Slightly injured: 27 |
Completely destroyed houses: 1 Half-collapsed houses: 4 Houses with water above floor level: 83 Houses with water below floor level: 87 Houses with partial damage: 3 |
|
| Fire and Disasater Management Agency 2026/08/14 | ||
| Dead: 2 Seriously injured: 1 |
||
Related Links
Report/Articles
Chiba Prefecture 2026/09/01
Situation Report No.22
Chiba Prefecture 2026/08/25
Situation Report No.20
Chiba Prefecture 2026/08/24
Situation Report No.19
Chiba Prefecture 2026/08/20
Situation Report No.15
Chiba Prefecture 2026/08/19
Situation Report No.14
Chiba Prefecture 2026/08/18
Situation Report No.13
Chiba Prefecture 2026/08/18
Situation Report No.12
Chiba Prefecture 2026/08/17
Situation Report No.10
Cabinet Office 2026/08/16
Report on Damage Caused by the August 2026 Chiba Heavy Rains (As of 10:00 a.m. on 16 August 2026)
Fire and Disasater Management Agency 2026/08/15
Damage Caused by Heavy Rainfall Beginning 13 August No. 9 (As of 10:00, 15 August 2026)
Fire and Disasater Management Agency 2026/08/14
Damage Caused by Heavy Rainfall Beginning 13 August No. 6 (As of 07:00, 14 August 2026)
NHK World 2026/08/14
The heavy rain has also affected a major metropolitan airport. Operators of Narita Airport in Chiba Prefecture said around 6,600 people were stuck at the airport as of 1 a.m. on Friday. Tokyo Electric Power Company said that as of 5:30 a.m. on Friday, about 27,000 households in Chiba, Ibaraki and Tochigi prefectures were without power.
The Mainichi 2026/08/13
Heavy rain pounds Chiba Pref. near Tokyo, floods roads, leaves 3 dead