Tokyo Metropolitan - Flood Control Integrated Information System (Bureau of Construction River Division) Provide

This website provides rainfall amount and river water level information observed in Tokyo, as well as the warnings, alarms and special alarms in real time.

There is currently no announcement.

Flood forecast

There is currently no announcement.

Water level well-known river

There is currently no announcement.

Sediment disaster information

There is currently no announcement.

Storm Surge Inundation Information

There is currently no announcement.

Map retrieval

×

Legend

Legend

River image symbol

  • River camera
    installation location
  • River camera
    installation location outside Tokyo
  • Flood inundation water level
  • 80% water level
  • 50% water level
  • Normal
  • Stopped ⁄ missed
  • Flood inundation water level
  • Flood danger water level
  • Flood warning water level
  • Stand-by water level for Flood Defense
  • Normal
  • Stopped ⁄ missed

10-min rainfall

  • More than 30 mm
  • 20〜29mm
  • 15〜19mm
  • 10〜14mm
  • 5〜9mm
  • 3〜4mm
  • 1〜2mm
  • not met 1 mm
  • Stopped ⁄ missed

Storage ratio of regulating reservoir

  • 100% storage ratio
  • 80% storage ratio
  • 50% storage ratio
  • Storage started
  • Normal
  • Stopped/missed

Floodgate tide level (mountain side) ⁄ (ocean side)

  • Warning water level exceeded
  • Warning water level not met
  • Normal
  • Invalid

Weather information / warnings in various areas

Area Heavy Rain Flood Storm Surge Thunder Storm Wind Heavy Snow High Wave Others
23 Western wards - - - - - - - -
Chiyoda - - - - - - - -
Chuo - - - - - - - -
Minato - - - - - - - -
Shinagawa - - - - - - - -
Ota - - - - - - - -
Meguro - - - - - - - -
Setagaya - - - - - - - -
Shibuya - - - - - - - -
Shinjuku - - - - - - - -
Nakano - - - - - - - -
Suginami - - - - - - - -
Toshima - - - - - - - -
Itabashi - - - - - - - -
Nerima - - - - - - - -
Bunkyo - - - - - - - -
Kita - - - - - - - -
23 Eastern wards - - - - - - - -
Taito - - - - - - - -
Arakawa - - - - - - - -
Adachi - - - - - - - -
Sumida - - - - - - - -
Koto - - - - - - - -
Katsushika - - - - - - - -
Edogawa - - - - - - - -
Tamahokubu - - - - - - - -
Musashino - - - - - - - -
Mitaka - - - - - - - -
Fuchu - - - - - - - -
Chofu - - - - - - - -
Koganei - - - - - - - -
Komae - - - - - - - -
Nishi-tokyo - - - - - - - -
Tachikawa - - - - - - - -
Akishima - - - - - - - -
Kodaira - - - - - - - -
Higashimurayama - - - - - - - -
Kunitachi - - - - - - - -
Kokubunji - - - - - - - -
Musashimurayama - - - - - - - -
Higashi-yamato - - - - - - - -
Kiyose - - - - - - - -
Higashikurume - - - - - - - -
Tamaseibu - - - - - - - -
Fussa - - - - - - - -
Hamura - - - - - - - -
Mizuho - - - - - - - -
Ome - - - - - - - -
Akiruno - - - - - - - -
Hinode - - - - - - - -
Hinohara - - - - - - - -
Okutama - - - - - - - -
Tamananbu - - - - - - - -
Machida - - - - - - - -
Tama - - - - - - - -
Inagi - - - - - - - -
Hachioji - - - - - - - -
Hino - - - - - - - -
Oshima island - - - warnings - - warnings -
Oshima - - - warnings - - warnings -
Niijima island - - - warnings warnings - warnings -
Toshima - - - warnings warnings - warnings -
Niijima - - - warnings warnings - warnings -
Kozushima - - - warnings warnings - warnings -
Hachijo island warnings - - warnings warnings - warnings -
Hachijo warnings - - warnings warnings - warnings -
Aogashima warnings - - warnings warnings - warnings -
Miyake island warnings - - warnings warnings - warnings -
Miyake warnings - - warnings warnings - warnings -
Mikurajima warnings - - warnings warnings - warnings -
Ogasawara Islands - - - - - - - -
Ogasawara - - - - - - - -

Gorverment・Prefecture river video website

  • * Acknowledge all the important points in the "Information supply" section before using the information.

Notification

  • The homepage has been renewed from March 7th. The URL of the observation station has been changed, so if it is registered in "Favorites", please change it to the new URL.

What can I do at the time of disaster or for advance preparation?

  • What is the purpose of evacuation?
  • Where should I evacuate?
  • What should I check before evacuation?

  • Tokyo Metropolitan Flood Control Channel
  • Flood risk search service
  • Opinions and requests