The biggest high tides in two decades could hit later today .
The Environment Agency says the annual spring tides will reach the peak of an 18 and a half year cycle which, along with stormy weather, could cause coastal flooding in some areas.
The high tides are the result of the sun, moon and earth aligning in such a way that they combine to create a greater than normal force over the oceans.
Instead of the normal 9 m highs we are expecting a tide of 10.20 m at 1:43 this afternoon which will cause flooding on the island. We have heavy rain which won't help matters but luckily the winds are light
I am safe where I am on a hill but the village at both end of the island as well as the chalet park are all very likely to get a clattering