Snow is notoriously hard to forecast in the United Kingdom because temperatures are often marginal, with half a degree making all the difference as to whether rain, sleet or snow falls.
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STV Weatherman Sean Batty said: “The weather will turn much colder across Scotland on Friday, with a significant wind chill developing”.
It adds: “The snow will mainly affect high ground at first but will fall to lower levels on Friday night”.
Sleet and snow are predicted in the west and north of Ireland as temperatures drop lower than figures seen in Moscow this week.
Peter O’Donnell, forecaster with Irish Weather Online, said any snow tonight and over the weekend will be on higher ground.
“Wind gusts of 50-60 miles per hour are likely, with a lower likelihood of 60-70 miles per hour gusts, perhaps most likely in exposed parts of east coastal England”.
The whole country will wake to a wintry start, with a cold air sweeping through central and southern Britain.
Sean Penston, a forecaster with MeteoGroup, said: “It is the f irst significant cold spell in the south this year”.
Both Bedford and Luton are two places which could see light snow late Saturday morning.
Temperatures, which have so far been unseasonably mild, are now set to plummet.
There has been an absence of frosts in most areas, largely because the weather has been cloudy and there have been very few clear nights.
Furious gales tore across Britain on Tuesday night in what was the second officially named storm of the season, dubbed Barney.
“It will also be windy so there will be a risk of blizzards disrupting travel”.
The Sun claims to have seen a Met Office report, intended for the eyes of local councils, transport heads and emergency services chiefs, warning of up to 1.5ft of rainfall, accompanied by gale force winds. It was left lying across a street in Three Bridges, Crawley.
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This follows periods of high winds and heavy rain causing flooding in the Preston area.
