At 17:47 water level is -0.12m and it will keep falling by 0.09m until the low tide at 21:51
The low tide with -0.21m is 60% of the lowest astronomical tide (-0.35m)
At 17:47 water level is -0.12m and it will keep falling by 0.09m until the low tide at 21:51
The low tide with -0.21m is 60% of the lowest astronomical tide (-0.35m)