Hi Phil,
A couple of great weather forums that may be able to help include:
http://www.ukweatherworld.co.uk/forum http://www.net-weather.co.uk/forum/
Or you could try the guys at
www.weathercommerce.net - they're usually very busy, but they're very good weather forecasters and if they have the time then I'm sure they'll be happy to help out.
Cheers
Stuart