The theyr weather website - is it accurate?

Modulation

Modulation

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Just stumbled upon it - and loved its clarity and the way you can customise for your own needs. Trouble is it seems a little more optimistic than either the BBC or Metoffice predictions ie it forecasts less strong winds.
How do you feel about it? I've always found the Metoffice to be ok (they should be, after all) but maybe a little cautious. Is theyr more accurate?

<hr width=100% size=1>Brendan
 
I fish out of Poole, right through the year, and driving a rounfd trip of 300 miles to the boat can mean that a few degrees on wind makes the difference between fun and a bad day. I like the local element of theyr, and have found it to be incredibly accuracte time and time again. It has manged one complete screw up in the last 2 years for me but generally it has matched experience far better than the inshore forecast. tThisis almost entirely due to the general nature of the inshore forecast - and the local nature of the weather.
This, as you may perceive, is a recomendation!

<hr width=100% size=1>madesco madidum ..../forums/images/icons/smile.gif
 
I think going on one on-line met service is not enough.

I like Theyr.net but I like to have the concensus of other before I finally come to a decision.

In my opinion, no weather forecast site is accurate. They can only achieve a level of accuracy, and not many publish their results.

Regards

Donald

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After several years of checking all the sites for consensus and extremes, I regard Theyr as one of the most accurate sites there is, in conjunction with Windguru (log in as a user, and look at their experimental forecasts, excellent)

<hr width=100% size=1>Me transmitte sursum, caledoni
 
I hadn't come across this site until reading this post. I don't think I'd want to rely on it without some cross-checking given the apparent computer-generated nature of the forecasts, but the presentation is impressive - and the testimonials here shouldn't be discounted. My (limited) experience is that the computer-generated forecasts tend to underestimate problems, whereas the Met Office plays safe and forecasts worst case - I've lost more than one day's sailing unncessarily by taking them literally.

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all I can say, is that practical experience, says that 3 day forecast from Theyr beats met office hands down in terms of what you actually get out on the water.

I've posted before about met office, and they are largely computer generated, with only the odd input from humans, where the situation is complex - in which case it's 50 / 50 on whether computer or human is going to guess correctly.

Theyr recommendation is based on large amounts of observation. Windguru experimental forecast I was only introduced to in the last few weeks through input from another forumite, and it's forecasts are quite interesting, but still to be compared to real life over several seasons

Probably also worth pointing out that Theyr is funded by Icelandic government I believe, as little information is available on it.

<hr width=100% size=1>Me transmitte subsume, caledoni
 
Have you seen that you are going to need a subscription which you will have to pay for?

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moosewalk.gif
 
For which service? More than happy to pay for something I think is worthwhile

If Theyr started charging, I'd pay the subscription based on their information to date

<hr width=100% size=1>Me transmitte sursum, caledoni
 
Theyr is independent of the Icelandic government and I wouldn't be surprised that they start charging at some stage. (I had expected charges before now.) If they do start charging, it might be on a two tier basis, one part free and a more detailed one at a cost. This is only speculation on my part; I hope it stays free; but I would be happy to subscribe to Theyr if they did start charging. I find them very good. (Its run by Bjorn Erlingsson.)

I have some more weather site links at the site on my signature if anyone is interested.

The most accurate method of checking wind and wave height in your area is without doubt Nowcasting. Nothing to compare with it. It is used by all the ferry companies but its (relatively) expensive.

<A target="_blank" HREF=http://www.begleys.com/weather.htm>Useful links for Irish waters.
 
Nowcasting - thanks for the link

You are right it is expensive but in the greater scheme of things you get what you pay for in my experience.

I've just downloaded the month's free trial and will be interested to see how it fares.

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How can you use the words weather forecast and accurate in the same sentance!
I have been checking weather forecasts from 2 or 3 web sites plus met office blus the beeb. Their forecasts a less reliable the rolling dice.

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I've found Theyr to be user friendly and has been a pretty good indicator of what to expect. I particularly like the animations. My children are fascinated and like to look so its accessible education as well.

<hr width=100% size=1>Two beers please, my friend is paying.
 
> This is almost entirely due to the general nature of the inshore forecast - and the local nature of the weather.

Totally agree, I have not come across anything to match Theyr, what the weather in mull of Kintyre has to do with the weather of Anglesey I don't know but that is how general the inshore forecast is.

<hr width=100% size=1><A target="_blank" HREF=http://"www.nwcc.info">North Wales Cruising Club</A>
 
You can check all the Marine forecasts from my own weather portal which also has a PDA page designed for mobile connections. I hate to brag about this but everyone who uses it remarks on it's fast loading and direct links to the most accurate forecasts.

As for Theyr, I have found their forecasts accurate to about 18 hrs ahead. After that, it becomes very inaccurate though one thing I do like is that they take into account the fall in the wind speed overnight. Their website isn't great for mobile connections as it is very graphical.

If you are able, a free alternative to the nowcasting is to download the Raymarine software (link on my weather site) and use the GRIB data either from Raymarine or from Saildocs which give up to 8 days ahead and are quite accurate. You just use the software in Simulation mode with no license required and receive a daily GRIB data in your e-mail. We used this forecast entirely when we were on holidays circumnavigating Ireland and it proved itself.

<A target="_blank" HREF=http://www.stronge.org.uk>http://www.stronge.org.uk</A>

Hope this helps


MarkdJ

<hr width=100% size=1>Princess Owners Club
<A target="_blank" HREF=http://www.princessownersclub.com>http://www.princessownersclub.com</A>
 
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