BOSAIMIE.jp

Month/Day Hour: Minute	Observed tide level (TPm)	Astronomical tide level (TPm)	Tide level deviation (m)
12/08 12:20	－	0.09	－
12/08 12:10	－	0.14	－
12/08 12:00	－	0.19	－
12/08 11:50	－	0.24	－
12/08 11:40	－	0.29	－
12/08 11:30	－	0.35	－
12/08 11:20	－	0.40	－
12/08 11:10	－	0.46	－
12/08 11:00	－	0.51	－
12/08 10:50	－	0.56	－
12/08 10:40	0.54↓	0.61	- 0.07
10:30	0.59↓	0.66	- 0.07
10:20	0.64↓	0.71	- 0.07
10:10	0.69↓	0.75	- 0.06
10:00	0.73↓	0.79	- 0.06
09:50	0.77↓	0.82	- 0.05
09:40	0.80↓	0.85	- 0.05
09:30	0.84↓	0.88	- 0.04
09:20	0.86↓	0.90	- 0.04
09:10	0.87↓	0.92	- 0.05
09:00	0.88↓	0.93	- 0.05
08:50	0.90→	0.93	- 0.03
08:40	0.90↑	0.93	- 0.03
08:30	0.88↑	0.92	- 0.04
08:20	0.87↑	0.90	- 0.03
08:10	0.85↑	0.88	- 0.03
08:00	0.82↑	0.86	- 0.04
07:50	0.80↑	0.82	- 0.02
07:40	0.76↑	0.78	- 0.02
07:30	0.72↑	0.74	- 0.02
07:20	0.67↑	0.69	- 0.02
07:10	0.61↑	0.63	- 0.02
07:00	0.55↑	0.57	- 0.02
06:50	0.50↑	0.50	0.00
06:40	0.44↑	0.43	0.01
06:30	0.36	0.36	0.00

*Information on reaching the storm surge emergency warning water level: 　 Alert Level 5 equivalent information
(Information for determining the declaring of Alert Level 5 emergencies by municipalities to ensure safety)
*TPm: Average sea level of Tokyo Bay, the reference plane for elevation (altitude above sea level)
*Tide level deviation: The difference between the observed tide level and the expected astronomical tide level.
*Astronomical tide level: The tide level that rises or falls due to the influence of celestial bodies (movements of the moon, sun, or earth).