The cold spell is set to continue overnight after temperatures plummeted to -18.9C on Saturday morning in Altnaharra, which is in the most northern region of the Highlands and was the UK's coldest Jan

Tonight, January 10, the Met Office has predicted that parts of the UK could reach a whopping -20C. In Altnaharra, a hamlet in Sutherland, the most northern region of the Highlands, overnight temperatures dropped to -14.5C overnight into Friday, the coldest night of the winter so far in the UK.

The Met Office has issued yellow weather warnings of snow and ice for several regions as snow continues to cause carnage across the country.

A fresh warning issued on Wednesday affect areas within North West England, South West England and Wales and are in place between 3am and 12pm on Thursday, January 9.

The Met Office operates 24 hours a day, 365 days a year, so warnings can be issued at any time, day or night. These can be for any extreme conditions, be they rain, thunderstorms, wind, snow, lightning, ice, extreme heat and fog.

The Met Office has issued new weather warnings for parts of the UK, with yellow warnings for ice and snow in place until Friday morning. The two new warnings cover parts of Northern Ireland and Wales as well as areas in north-west England and the east of England - they come after an existing warning for snow and ice in parts of northern Scotland.

The mercury could reach minus 20C in some parts of the UK on Friday night, the Met Office has said, with weather warnings for ice in place across the UK

The Met Office has issued a fresh yellow weather warning for ice for Yorkshire and the Humber this evening as Britain continues to shiver in freezing temperatures.