Tatsumi Flood gateThere is currently no announcement.

Opening and closing of floodgates

Illustration legend

* The illustration shows a floodgate from the sea side and downstream, and the right end is gate 1.

A.P. T.P. ？

Outside water level？

A.P.+1.66m T.P.+0.53m
Water level on the outer water area side of the floodgate (seawall) (unit is A.P. T.P. 〇m)
Legend
※Comparison of tide level 10 minutes ago and now
- Rise
- Descent
- No change
- Missing data
Inside water level？

A.P.+1.66m T.P.+0.53m
Water level on the inner water area side of the floodgate (seawall) (unit is A.P. T.P. 〇m)
Legend
※Comparison of tide level 10 minutes ago and now
- Rise
- Descent
- No change
- Missing data
Atmospheric temperature？

18℃
Atmospheric pressure？

1009hPa
Wind speed？

2m/s
Wind direction？

South
Gate1？

Open
Gate2？

Open

Tide graph1hour10min

Wind direction
and
speed graph 1hour 10min

Atmospheric
pressure graph1hour10min

Legend

Outside water level
Inside water level
Astronomical tide level
Seawall top height adjacent to the floodgate
Emergency Warning Water Level (A.P.+4.2m（T.P.+3.07m) Zone)
Emergency Warning Water Level (A.P.+3.6m（T.P.+2.47m) Zone)

Wind speed
Wind directionN

Atmospheric pressure

Click here for information on the meaning of and the water level in each graph such as the inner water level, outer water level, etc.
During a storm surge, strong winds may generate high waves, so check the camera image as well.
Check here for weather information released by the Japan Meteorological Agency.

Storm Surge Emergency Warning Water Level？

Target areas	Storm Surge Emergency Warning Water Level
Chuo, Minato, Ota	A.P.+3.6m (T.P.+2.47m)
Chiyoda, Shinjuku, Bunkyo, Taito, Sumida, Koto, Shinagawa, Meguro, Kita, Arakawa, Itabashi, Adachi, Katsushika, Edogawa	A.P.+4.2m (T.P.+3.07m)
Background colors in table: Areas where the Storm Surge Emergency Warning Water Level has not been reached □ Areas where the Storm Surge Emergency Warning Water Level has been reached ■

Current water level?
A.P. T.P. +1.66m +0.53m Information as of 2025/04/28 06:17

When the "current water level" in the table reaches the Storm Surge Emergency Warning Water Level , "Storm Surge Inundation Information" will be announced for each water level.
The Storm Surge Inundation Information is information equivalent to alert level 5 that indicates the situation where a disaster has occurred or is imminent.
※"Current water level" shows the water level of Tatsumi Flood gate, which is the standard water level observatory for theStorm Surge Emergency Warning Water Level.

Floodgate in the same area

Shin-Onagigawa Floodgate

Oshimagawa Floodgate

Tatsumi Flood gateThere is currently no announcement.

Tide graph（1hour）

Wind direction and speed graph

Atmospheric pressure graph

Storm Surge Emergency Warning Water Level？

Floodgate in the same area