It’s led to issues on the railways and with ferries with ScotRail and CalMac both announcing cancellations.
An amber alert for heavy snow and ice is in force between 7am and 5pm on Saturday in areas across Scotland, where 10-20cm is likely on ground above 200 metres and potentially as much as 20-40cm on hills above 400 metres.
The weather warning covers parts of Angus, Perth and Kinross, Stirlingshire, Aberdeenshire and some of the Highlands, Argyll and Bute, the Borders, Dumfries and Galloway, East Ayrshire and South Lanarkshire.
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Christmas lights switch-ons have also been cancelled throughout the country because of the weather.
As well as CalMac announcing their cancellations, the ferry between Northern Ireland and Scotland operated by P&O Ferries is also suffering issues.
The 4am between Larne and Cairnryan was cancelled while on the trains, there will be speed restrictions on the West Highland Line, Highland Mainline, Stranraer line, Glasgow South Western Line, Far North Line, and West Coast Mainline between Carstairs and the border.
ScotRail has withdrawn services from Inverness to Elgin, Aberdeen to Inverurie, and Glasgow Queen Street to Oban while trains from Glasgow Central to Carlisle will terminate at Dumfries.