Maps and charts show the mercury could drop as low as -7C (19.4F) during the week of November 23, with snowfall predicted to reach parts of the midlands. While so far November has enjoyed milder weather, experts have said Britons are about to see “the other side of the coin” with colder temperatures hitting near the start of December.
According to WXCharts, some snowfall is expected to hit the UK on Tuesday night, but it is expected to be localised to Fort William and Portree in Scotland.
However, maps from the week starting November 22 show unsettled weather patterns pushing snow from the northeast over Scotland and into the rest of the country.
From midnight on Wednesday November 24, snowfall will push from the north of Europe and begin to move across the northern-most parts of Britain.
By 6pm on Friday November 26, WXCharts holds a flurry of snow, up to 3cm falling an hour, will buffet much of Britain and the easternmost parts of Northern Ireland.
In the Met Office’s outlook for the last week of November, they said: “A cold and potentially cloudy and drizzly start to this period in the north, with some wintery showers following over high ground.
“Winds will often be blowing between the west and north. High pressure will often affect southern areas, bringing largely settled and dry conditions here, this possibly extending countrywide at times.
“However, some spells of rain are likely to affect northern areas, accompanied by brisk winds.
“There is likely a trend towards colder conditions later in the period, with a risk of wintry showers, mainly in the north.
“Otherwise, temperatures are likely to be close to or just below average.
“Under high pressure, frost and fog are likely overnight, with any fog slow to clear during the morning.”
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James Madden, forecaster for Exact Weather, told Express.co.uk: “The cold is likely to win out before the end of November bringing an early taste of winter and the risk of snow.
“Waning solar activity means chances are high for a ‘little ice age’ winter this year with notable periods of cold and snow.
“We have high confidence for the most cold and wintry conditions since December 2010 developing towards the end of the year.”
Jim NR Dale, British Weather Services also told Express.co.uk: “The weather in the UK has been sanguine, too sanguine for the season we are in.
“I do believe we will see the other side of the coin as we push into December – in terms of all the severity of most of the elements of weather.”
Oliver Claydon, Met Office, told Express.co.uk the week ahead could see the mercury drop, with a risk of snow not uncommon for this time of year.
He said: “Long-lead models are showing there is a chance for things to turn a bit colder in the middle of next week.
“Uncertainty is hinged around an area of high pressure, if it’s further to the west then it could pull a chance of snow from the North.
“As we get towards the end of November, it’s not an uncommon weather occurrence to see snow, and there is a level of uncertainty several different models show several different outcomes.
“It’s worth noting that temperatures are likely to be milder than average this week, with mild temperatures continuing throughout the working week and colder temperatures by the weekend.
“Nothing in the forecasts for frosts, certainly nothing widespread.”
Jo Farrow, Netweather forecaster, said to Express.co.uk the week still to come “is still looking mild”.
She said: “No widespread air frost and the only chance of snow will be in wintry showers over the tops of the Scottish mountains during Tuesday night as colder air brushes past.
“Northwest Scotland will often be wet and windy but it’s more settled further south thanks to a lingering high pressure.
“Even milder air by Thursday lifting temperatures into the mid-teens.”