Heights given are heights above King’s Lynn Dock Sill. This Datum is 0.7 metre below Chart Datum King’s Lynn or 3.75 metres below Ordnance Datum Newlyn.
The time is given for High water at King’s Lynn followed by the predicted height in metres and feet above Dock sill. Low water at King’s Lynn is approximately 4 hours to High Water.
CAUTION The Predicted Height can be effected by prevailing weather conditions, such as a strong southerly wind can have the effect of reducing the actual high water height and make the tide late, whilst a strong Northerly wind can have the effect of Increasing the actual high water height and make the tide early.
King’s Lynn to Denver – Bridge clearances. To calculate the minimum clearance under the bridges at high water deduct the height of the tide from 9.15 metres.