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Month/Day Hour: Minute	Observed tide level (TPm)	Astronomical tide level (TPm)	Tide level deviation (m)
09/12 22:50	－	- 0.29	－
09/12 22:40	－	- 0.22	－
09/12 22:30	－	- 0.14	－
09/12 22:20	－	- 0.06	－
09/12 22:10	－	0.03	－
09/12 22:00	－	0.11	－
09/12 21:50	－	0.20	－
09/12 21:40	－	0.29	－
09/12 21:30	－	0.37	－
09/12 21:20	－	0.46	－
09/12 21:10	0.49↓	0.55	- 0.06
21:00	0.58↓	0.63	- 0.05
20:50	0.67↓	0.71	- 0.04
20:40	0.75↓	0.79	- 0.04
20:30	0.83↓	0.86	- 0.03
20:20	0.91↓	0.93	- 0.02
20:10	0.97↓	1.00	- 0.03
20:00	1.03↓	1.06	- 0.03
19:50	1.08↓	1.11	- 0.03
19:40	1.14↓	1.15	- 0.01
19:30	1.18↓	1.19	- 0.01
19:20	1.21↓	1.22	- 0.01
19:10	1.24↓	1.25	- 0.01
19:00	1.26↓	1.26	0.00
18:50	1.27→	1.27	0.00
18:40	1.27↑	1.27	0.00
18:30	1.26↑	1.26	0.00
18:20	1.24↑	1.25	- 0.01
18:10	1.22↑	1.23	- 0.01
18:00	1.19↑	1.20	- 0.01
17:50	1.15↑	1.16	- 0.01
17:40	1.11↑	1.12	- 0.01
17:30	1.06↑	1.07	- 0.01
17:20	1.00↑	1.01	- 0.01
17:10	0.94↑	0.95	- 0.01
17:00	0.87	0.89	- 0.02

*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).