Long range weather forecasts..?

Fri Sep 14, 2012 12:20 pm

So im like a kid on christmas eve at the moment, just under 2 weeks to Kerry and Im trying to see what the likely weather will be. I know they usually cant tell ye whats going to happen tomorrow, but does anyone have a site thats not far off the mark with long range..?

As long as we dont get the tail end of a tropical storm or a very cold low pressure spell i'll be happy enough.

Re: Long range weather forecasts..?

Fri Sep 14, 2012 12:36 pm

I've learned from a reliable source (the guy is a meteorologist) the utmost time for a weather prediction you can depend upon are three days at maximum - everything else is guesswork and more than likely wishful thinking. Sorry about the bad news :P

Re: Long range weather forecasts..?

Fri Sep 14, 2012 12:39 pm

I heard the same thing myself..! I used to work with a guy who left to become one. Said 3 days is your lot. I have looked at a few and every one of them had different predictions. :-)

Re: Long range weather forecasts..?

Fri Sep 14, 2012 1:29 pm

It's the butterfly effect.

I've just learned from http://en.wikipedia.org/wiki/Butterfly_effect that it could have been called the "seagull effect" :D

Re: Long range weather forecasts..?

Fri Sep 14, 2012 1:33 pm

I think they're getting more confident out to 5 days, but they would give a % confidence level. Not so sure the general public would be happy with that.
What I would do is look at charts from different computer models. If they are all fairly similar, I'd be a little bit more confident. 2 weeks is pushing it!
http://www.meteociel.fr/modeles/ecmwf.p ... &archive=0

Re: Long range weather forecasts..?

Fri Sep 14, 2012 2:15 pm

Yeah, looks like nothing I can do only wait a week and then take a look.
Tnks all

Re: Long range weather forecasts..?

Fri Sep 14, 2012 2:38 pm

met eireann quoted that all weather forecasts are accurate up to 3 days.......anything after that is geuss work as mentioned above......

Re: Long range weather forecasts..?

Sun Sep 16, 2012 10:43 am

Some folks advocate keeping an eye on the jetstream forecast.
If it is up over or above ireland it usually means nice settled weather.
http://www.netweather.tv/index.cgi?acti ... ream;sess=

Re: Long range weather forecasts..?

Mon Sep 17, 2012 6:45 pm

Nice one.