Current Turn Table

What it does

• Current turn rarely coincides with high or low water; the offset is site-specific.
• The table converts a published offset into local clock times for any date.
• Neap and spring turns are listed separately because the offset differs.

How to use it

1. An offset published in a pilot book is usually tied to a specific reference port.
2. Interpolate linearly between spring and neap columns, then round to five minutes.
3. The caution band matters more than the turn instant for a narrow gate.
4. Record the reference port in the log beside every turn time.

Safety notes

• A turn estimate does not describe eddies or standing waves at the gate.
• Treat a first passage through a gate as a reconnaissance, not a schedule.