SC
My statement perhaps was not clear. I meant to say that the wind does not change much from the forecast during flight. Yes it can swing around as fronts pass but this is reflected in the taf.
I realise now that the original post is indeed hypothetical so i apologise to Funfly if he feels i am being harsh. However, it irks me somewhat as an instructor that people do not plan their flights correctly. And irks me even more that when they make a mistake they don't take control of the situation themselves. Make mistakes and learn from them.
How many times as an instructor do you say to students "You got us in this mess, you get us out" when they are crying that they can't fly an approach/forced landing or whatever the lesson is. And how many times when they realise that your not going to help, do they sort out whatever the problem was in the first place! It's all about building confidence.
Anyway, back to the topic at hand. Here are a list of good sources of wx.
Tafs And Metars
Met Office
AvBrief
Tafs Metars and Notams.
ippc.no (Personal Favourite This One)
General Trend Info
Icelandic Weather Site. Good source of info
Bit Random but has some good bits.