An amber weather alert has been issued by the Met Office for incoming snow, with Britons being warned to expect power cuts.
Those in affected areas have been urged not to drive and to prepare for isolated communities to be cut off as the whiteout draws near.
The amber warning covers central and northeastern regions of Scotland, from north of Glasgow through to Aberdeen, and will remain active until 2 pm today.
Forecasters have indicated that higher ground could see accumulations reaching 30cm, while lower-lying areas are expected to receive between 2cm and 5cm of snowfall.
Those in affected areas have been advised to prepare appropriately, with car travel generally discouraged in all but essential cases.
People should make sure they have access to torches, batteries, candles and any other independent light sources.
Experts also recommend the collection of blankets and warm clothing.
Elsewhere in the UK, numerous yellow warnings are currently in effect across the United Kingdom, cautioning residents about strong winds, icy conditions and heavy rainfall that may cause flooding.
The Met Office has issued a series of weather warnings across the UK for snow
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The yellow warning for snow and ice extends across much of Scotland, the North West, North East and West Midlands, lasting until 3pm today.
Wind warnings affect Scotland, Northern Ireland and parts of northern England above Newcastle until 9pm, with a further wind alert covering areas north of Glasgow from 9pm tonight through to midday on Monday.
Three separate rain warnings are also active, covering northwest Scotland until Monday morning, southwest Scotland until the end of today, and Northern Ireland until 9pm, with flooding possible in all affected areas.
An ice warning remains in place for the East Midlands and North East, including Yorkshire and Lincolnshire, until 11am.
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Those worst hit in Scotland have been warned to expect power cuts
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Met Office forecaster Greg Dewhurst warned of a "very unsettled start" to Sunday with "outbreaks of heavy rain, strong winds and also snow".
He explained that the country is experiencing a shift from the recent cold spell towards milder conditions, but cautioned that this brings its own dangers.
"An increase in risk of heavy rain, strong winds, snow initially, which will then melt and lead to the risk of flooding," the forecaster added.
The combination of melting snow and incoming rainfall presents particular concerns for areas already saturated by recent precipitation, with multiple flood warnings accompanying the weather alerts.
Britain is still reeling from the onslaught of Storm Goretti
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The severe conditions follow the disruption caused by Storm Goretti on Thursday and Friday, which forced school closures and brought travel chaos across the country.
On Saturday, police confirmed a man in his 50s died on Thursday evening when a tree struck a caravan in the Mawgan area near Helston, Cornwall.
Cornwall was one of the worst-hit regions by the gale-force winds of Storm Goretti.
The Met Office issued a rare red weather warning covering Cornwall, advising that the winds could cause damage to homes and flying debris, resulting in danger to life.
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