Freezing weather will roar back later this weekend after a respite from the cold brings slightly milder conditions over the next couple of days. Early weather models show a risk of wintery downpours into December with heavy snowfall possible across Scotland and northern England. South-western Britain will be lashed by heavy rain this weekend as a spinning low-pressure system scours the region. Elsewhere will remain cold as bitter winds sweep in from the east bringing harsh frosts and near-freezing temperatures.
Freak swings in the jet stream driven by a period of unusually low solar activity will set up a stubborn easterly airflow allowing bitter winds to tear in from Siberia and Russia.
WeatherAction forecaster Piers Corbyn said this pattern of weather will largely hold out through December meaning a cold and snowy festive season is on the cards.
He said: “We are seeing a very unusual period of jet stream activity with wild and complex deviations in the flow complicated by low solar activity.
UK weather forecast: Freezing weather will roar back later this weekend
“In terms of the weather we can expect another unusually cold blast after the weekend with wintry conditions likely to last through until the end of the month with more snow at times.
“The jet stream is helping to pull in very cold air from the Arctic region including Siberia and Russia.
“It will be slightly less cold this weekend before the next cold blast and although the general theme for the run up to Christmas is for more of the same there will be some brief milder interludes in the mix.
UK weather forecast: The West Country which will be hit by wind and rain
“With very cold air about to come in from Siberia I would not be surprised to see temperatures in parts of the country dip into minus double figures.”
Freezing winds and torrential rain could trigger devastating US style ‘ice storms’ during the final part of the year, according to some forecasts.
Severe weather threatens to throw festive preparations into mayhem with snow and ice triggering chaos on the roads and transport systems.
After an unusually cold end to autumn, winter threatens to kick off in the same vain with December shaping up to be a colder than average month.
Exacta Weather forecaster James Madden said Britain is in the firing line for relentless snow deluges which could hold out for weeks.
He said: “December temperatures are already looking overall lower than average with he risk of widespread snow events through the last few weeks of the year.
“The worst of the weather will show its hand at the start of the month and again at the end of the month according to current forecasts.
“There will also be a risk of blizzard conditions and even ice storms with very cold weather clashing with cold air over the country.
“This cold weather is linked to a period of low solar activity which is having an effect on the jet stream, we could be looking at another long and severe period of winter weather setting in soon.
“We are looking at a similar theme throughout the season as a whole.”
Temperatures will pick up slightly over the next few days although much of the country will still feel cold, the Met Office said.
Much of the country will be calm and settled through the weekend apart from the West Country which will be hit by wind and rain.
UK weather forecast jet stream: Bitter winds will tear in from Siberia and Russia
Met Office meteorologist Luke Miall said: “We are going to remain in a blocked pattern of weather for the next five days with high pressure to the north of the country and low pressure to the south.
“Easterly winds will continue to come into the country but it will be slightly less cold as we go into the weekend.
“There will be a risk of heavy, thundery showers in the southwest due to a spiralling low pressure to the south of the country, this could bring some heavy downpours to the region on Saturday.
“There is a chance we could issue a warning for this.
“Next week we will keep the easterly airflow so it will be dry at first but there are signs the weather could then turn more unsettled from the west.
“Beyond that there are some models suggesting it could turn cold with a northeasterly feed which would give wintry showers in the east while it would remain drier to the west.”
The Met Office’s long-range outlook warns cold weather could dominate during the run up to Christmas.
It states: “The west and southwest of the UK will likely turn more unsettled as we finish November, with these conditions possibly progressing northeastwards.
“It will generally remain on the cold side for the time of year, with the risk of some frosty nights and also some transient hill snow.
“Into early December, there is a lot of uncertainty in the forecast, as there is the chance of either a short-lived milder spell with winds from the west, or perhaps colder but drier weather if the winds turn more northerly or northeasterly.”