By Rory Murphy
Heavy snowfalls and temperatures as low as -15C have been forecast for parts of Scotland.
The Met Office has issued an amber warning for snow for areas including West Dunbartonshire, Argyll and Bute, Perthshire, Stirlingshire and Fife from 03:00 to 21:00 on Tuesday.
Snow could fall to depths of 10cm (3in) and to 20cm (8in) on higher ground, with 25cm (9in) in a few places.
North and north east Scotland could see temperatures dropping to -10C or even lower on Tuesday.
BBC Weather’s Simon King said Braemar in Aberdeenshire could see temperatures of around -15C on Tuesday night into Wednesday morning.
The lowest temperature of the winter so far, -13C, was recorded at Braemar.
As well as the amber warning for today, Tuesday, which also covers parts of Tayside, West Lothian, East and West Dunbartonshire and North Lanarkshire, there is a yellow warning of snow for Scotland from midnight until late Wednesday night.
Transport Scotland said Covid restrictions should mean people would not be making journeys unless they were for an essential purpose.
Some parts of Scotland, including Dumbarton, Vale of Leven, Loch Lomond and Helensburgh, have already seen heavy snowfalls.
Depths of 26cm (10in) were recorded at Aboyne in Aberdeenshire, 18cm (7in) at Aviemore and 15cm (6in) at Loch Glascarnoch, near Garve, in the Highlands on Monday morning.
Braemar Mountain Rescue Team have been helping engineers from energy company SSEN restore supplies in Upper Deeside in Aberdeenshire following power and communication failures caused by heavy snow.
The wintry conditions are associated with cold air from Russia and Eastern Europe.
The weather has been nicknamed the Beast from the East Two, following the 2018 Beast from the East which brought widespread snow to Scotland.