Freak changes in weather patterns and solar activity on the surface of the sun threaten to bring a repeat of the brutal Beast from the East which crippled the nation last year.
The UK could be looking at a whiteout on par with the historic big freeze of 2010 which brought some of the coldest winter conditions of the past century.
Temperatures will nosedive through October and into November while blizzards and hailstorms will be driven by a spate of ferocious storms set to crash in from the Atlantic.
The first flurries are expected to hit Scotland, Wales and parts of north-east England within the next fortnight with weather models showing a near 100-per cent snow risk in parts of the country during the run up to mid-October.
Bitter air is forecast to flood in from the Arctic later in the month and through the start of November with ‘snow event after snow event’ possible for the next four months.
James Madden, forecaster for Exacta Weather, said: “There will be a moderate risk of the first snow of the season across higher ground during the first part of October, and while this is not expected to be significant, it is still very early in the season to being seeing the first snow event.
“This will pave the way for further similar snowy scenarios during the rest of October, there will also be some hefty hail showers in the mix and these could come to lower levels of the country at times.”
Temperatures will drop through the coming weeks with October shaping up to be colder than average for the time of year.
It will set the scene for a much more brutal winter compared to last year with Britain facing some ‘severe cold weather events’ around the Christmas period.
Mr Madden said: “October is looking like it will deliver a colder than average month overall with ample widespread frosts across the country, and a taste of things to come in November and the upcoming winter.
“This will pave the way for what is viewing as a colder than average winter with some extreme cold weather events, particularly, from December onwards.
“We expect these conditions to prevail and start making an impact from later next month and particularly in November.
“Snow events have been few and far between in recent years and in terms of snowy winters, however, this winter is favourable for what is likely to be snow event after snow event.
“Weather systems pushing in off the Atlantic will be responsible as they clash with the colder and stagnated air across Britain.”
The cold blast will be driven by a plunge in solar activity pushing down temperatures in the Gulf Stream and altering the flow of the jet stream.
Current low solar activity with similar projections for the rest of the year have sparked warnings that the weather could be affected with enough significance to drive one of the coldest winters ever.
“This has allowed us to identify some previous record-breaking cold weather events several weeks in advance,” Mr Madden said.
He added: “There are signals that this winter could bring some record-breaking cold and snow from November onwards.”
Temperature models show the mercury plunging below freezing across much of the UK by the middle of October with lows of -3C (26.6F) possible across northern Britain and -2C (28.4F) further south.
Other weather graphs show freezing cold air from the Arctic sinking over Britain by the middle of the month.
It comes as Britain battens down the hatches for a storm onslaught later this week with ex-Hurricane Lorenzo gearing up to bear down on the nation.
Swathes of the country are braced for gales and torrential rainfall as the brutal tempest barrels in from the Atlantic.
Temperatures are also forecast to plunge by Wednesday bringing the first widespread frosts of the year, according to the Met Office.
Meteorologist Luke Miall said: “Wednesday is looking dry and sunny but cold, we could see frosts in the north on Wednesday morning with more widespread frosts likely on Thursday.
“Then we are keeping our eyes on ex-Hurricane Lorenzo.
“Although there is some uncertainly, models suggest the remains of the storm reaching the UK on Thursday brining strong winds and rain largely to western parts of the country into Friday.
“When we reach the weekend we are looking at a more typical pattern of weather for the time of year with some wind and rain with temperatures back to, or slightly above normal for the time of year.”