Wales snow: Derek Brockway warns of a foot of snow
17 January 2013 Last updated at 19:56 GMT
BBC Wales meteorologist Derek Brockway warns that parts of Wales will be severely hit by snow on Friday.
There a red warning for the south Wales Valleys and the Brecon Beacons and an amber warning in force covering most of the country.
Up to a foot of snow could fall on high ground with blizzards.