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Month/Day Hour: Minute	Observed tide level (TPm)	Astronomical tide level (TPm)	Tide level deviation (m)
05/10 18:20	－	- 0.58	－
05/10 18:10	－	- 0.58	－
05/10 18:00	－	- 0.58	－
05/10 17:50	－	- 0.58	－
05/10 17:40	－	- 0.57	－
05/10 17:30	－	- 0.56	－
05/10 17:20	－	- 0.55	－
05/10 17:10	－	- 0.54	－
05/10 17:00	－	- 0.52	－
05/10 16:50	－	- 0.51	－
05/10 16:40	- 0.59↓	- 0.49	- 0.10
16:30	- 0.57↓	- 0.47	- 0.10
16:20	- 0.55↓	- 0.44	- 0.11
16:10	- 0.53↓	- 0.42	- 0.11
16:00	- 0.51↓	- 0.39	- 0.12
15:50	- 0.48↓	- 0.37	- 0.11
15:40	- 0.45↓	- 0.34	- 0.11
15:30	- 0.42↓	- 0.31	- 0.11
15:20	- 0.39↓	- 0.28	- 0.11
15:10	- 0.37↓	- 0.25	- 0.12
15:00	- 0.35↓	- 0.22	- 0.13
14:50	- 0.32↓	- 0.19	- 0.13
14:40	- 0.29↓	- 0.16	- 0.13
14:30	- 0.27↓	- 0.13	- 0.14
14:20	- 0.24↓	- 0.10	- 0.14
14:10	- 0.21↓	- 0.07	- 0.14
14:00	- 0.19↓	- 0.04	- 0.15
13:50	- 0.16↓	- 0.01	- 0.15
13:40	- 0.13↓	0.02	- 0.15
13:30	- 0.10↓	0.05	- 0.15
13:20	- 0.08↓	0.07	- 0.15
13:10	- 0.06↓	0.10	- 0.16
13:00	- 0.04↓	0.12	- 0.16
12:50	- 0.02↓	0.14	- 0.16
12:40	0.00↓	0.16	- 0.16
12:30	0.01	0.18	- 0.17

*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).