Dave wrote:
I have to travel from Preston Lancs. to Portsmouth to bring my wife back
home. I have until Friday night to get her back.

Due to the severe weather we are experiencing and the short time I have
to prepare, can anyone recommend a web site that will be up to date,
quite quickly, on road conditions and closures due to the weather
conditions please?

Dave

http://news.bbc.co.uk/weather/forecast/10209

makes a good guess at where the snow isnt