And now, the weather report. Temperatures fell to -13C (8.6F) overnight, making it the coldest night of the winter, as waves of Arctic air continue to move across the UK.
Forecasters said it has been the coldest January night for 14 years.
Bitter conditions and significant snowfall have already forced schools to shut in Scotland and northern England, and sparked travel disruption.
Yellow warnings for ice and snow are in force in all four UK nations.
The bitter weather is expected to ease at the end of the week, before possible stormy weather this weekend.
By the end of Friday, more than 40cm of snow may be seen on high ground in north-west Scotland, as wintry weather continues, the Met Office (Meteorological Office) has forecast.
Snow, sleet and rain are expected to continue blanketing northern parts of the UK, though there will be some sunshine.
Heavy frosts and freezing conditions are likely across virtually the entire country, with experts warning of treacherous pavements and roads.
In January 2010, -22.3C (-8.14F) was recorded in the Scottish Highlands.
When the weather gets extremely cold, especially below freezing for a week or so, households that receive government benefits, in certain parts of the UK receive an automatic £25(￥4700) payment to help towards fuel bills.
Snow around the UK this week. Richard
