This week may be a good one to get some thermal clothing
for days out on the countryside, but crampons
may be increasingly important by the weekend.
Large areas of the country, particularly in Wales and western England, will see heavy snow on Friday (January 18th), the Met Office has said.
Its yellow weather warning has said there will be around 10-15cm of snow, with this figure increasing to more than 20 cm on high ground.
That means those heading for the moors and mountains will need to be well equipped for difficult underfoot conditions, as well as low air temperatures.
Wind chill will also be a major issue, with the forecast warning of some bitingly cold gusts to come.
One place where more snow will be welcome is in Scotland's ski resorts, where winter sports activity has been curbed in recent weeks because of mild Christmas and new year weather.
The Nevis Range resort said snow has fallen this week, but more is still needed to enable it to add to the handful of ski slopes currently open.