Bonos Ego wrote:

With pressure over the UK circa 1028-1031mb, this weekend's High /
Low Tides will be around 17cm below published tidal heights.

This will come as a relief to many living in coastal areas.


Not in south Cornwall.

Forecast pressure for late Saturday is around 1017mb, so the effect on
the astronomical tide will be neutral.

However there is currently a force 5-6 easterly, forecast to ease
slightly & veer SE for Saturday.

Based on experience, and looking at past actual Newlyn tides compared
with the forecast astronomical tides, a force 6 SE tends to raise tides
in Newlyn by around 0.3m above that predicted by the combinedng
astronomical & pressure prediction. This is because the water piles up
in the bay. Also, although there is no decent swell, the sea is very
choppy along the south coast.

Conditions are certainly nothing like those which have occured a number
of times previously, notably Oct. 2003, but I think some flooding now
looks likely on the south Cornwall coast. The road along the Abbey slip
in Penzance was under water on the last couple of tides.

Graham
Penzance