Most reliable marine forecast source for UK?

Iv been searching around for the most reliable marine forecast, last week I visited this website http://www.myweather2.com tells the seas heights and so forth, they reported 48 hours before hand 2 foot seas, but when we got there it was more like 4 foot. And got us by surprise. Is there any real good sources out

Iv been searching around for the most reliable marine forecast, last week I visited this website http://www.myweather2.com tells the seas heights and so forth, they reported 48 hours before hand 2 foot seas, but when we got there it was more like 4 foot. And got us by surprise. Is there any real good sources out there that are very reliable for 48 hour forecast for sea heights for the UK? So we can plan ahead knowing if it will either be too rough or ok.

Other answer:

tech:
Marine Forecast Uk
CMV:
It really is not reasonable to expect a forecast to be bang on 48 hours in advance , they are best guesses based on the data available , not an Oracle from Delphi !

The British Met office shipping forecasts for local waters are about as good as you can get , but they are never going to be perfect or be accurate to the level of saying how high the waves will be at the bottom of the yacht club dinghy ramp . at half-hourly intervals ; – the forecast gives you fair approximations on a local sea area that can be 60 miles X 90 miles , and it WONT tell you what local coastal water , under local tidal conditions , will be doing .

As with all things , doing a bit of research and reconaissance is never time wasted .

Try phoning the local Yacht club secretary a week before you go and ask whether they find the forecasts good for their particular location , or are conditions routinely rougher , windier , etc , than the forecast says they will be .
I know of one locally which always seems to get the forecast conditions , but 3 or 4 hours later than the forecast says ; – it's just something screwy in their local weather and sea conditions .

Think of it as like creating a deviation card for your magnetic compass .

Greywolf:
Met Office Marine Forecasts has both the Shipping Forecast and the Inshore Waters forecast (which is pretty good actually http://www.metoffice.gov.uk/weather/mari… Tis page has the definitions for sea state http://www.metoffice.gov.uk/weather/mari…
Sailor:
totally agree with greywolf. The met office provides the best forecasts that I have ever come across.