Just found this amazing photo taken by the NASA MODIS Rapid Response System. At 11:50am today (Jan 7th 2010) the MODIS system returned this image of the UK. I’ve never seen such a high percentage of the mainland covered by snow and ice.
For a full image click on this link: http://rapidfire.sci.gsfc.nasa.gov/gallery/?2010007-0107/GreatBritain.A2010007.1150.1km.jpg