At 18:03 water level is -0.01m and it will keep falling by 0.03m until the low tide at 19:50
The low tide with -0.04m is 20% of the lowest astronomical tide (-0.2m)
At 18:03 water level is -0.01m and it will keep falling by 0.03m until the low tide at 19:50
The low tide with -0.04m is 20% of the lowest astronomical tide (-0.2m)