Separate snow and ice warnings have been issued for Tayside and Fife as temperatures plummeted across Scotland.
Forecasters say “temporary blizzard conditions” could affect areas of Perthshire and Angus on Monday from the afternoon until the evening.
A yellow snow warning will be in place from 2pm until midnight. A separate one for ice across the whole of Tayside and Fife will be in place from midnight until noon on Tuesday.
The Met Office snow warning states that roads and trains could be affected by the conditions.
It adds: “A band of rain with snow falling above around 300m (984ft) is expected to move across Scotland on Monday afternoon and evening.
“1cm-3cm (0.4in – 1.2in) of snow is likely above 300m with 10cm (4in) of snow above 500m (1,640ft). Temporary blizzard conditions are also likely with strong winds.
The ice warning adds: “A band of rain will clear Northern Ireland on Monday evening with surface temperatures falling away behind this and icy stretches likely to form on some untreated surfaces.
“Wintry showers will push into the country from the northwest overnight, with a few centimetres possible across northern and western counties, especially over higher ground.”
It comes after the Met Office said the conditions will be so cold this week that this winter’s record low of -10.8C – experienced in Braemar on the morning of Friday, January 18 – could be surpassed.
Freezing wind is forecast to move into the country from the north-east as of Wednesday, with Angus, Dundee, Fife, and Perth and Kinross likely to bear the brunt of the bitter weather.