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The UK weather is on a spin cycle with heavy rain and gales forecast through a ‘miserable bank holiday’ and into the New Year. The jet stream will hurl storm systems into Britain as it is thrust into fifth gear by a ‘bomb cyclone’ winter storm hammering America.
Meteorologists have also warned temperatures on this side of the Atlantic will you-you between cold and mild through the end of 2022.
Jim Dale, meteorologist for British Weather Services, said Britain could see a knock-on effect of the US freeze while dodging the whiteout.
He said: “America is on the big dipper, but Britain may get a spin on the teacups.
“The UK weather will turn unsettled, and this will be driven by knock-on effects of what is happening across the Atlantic.
“It will turn unsettled between Christmas and New year, and temperatures will ebb and flow between cold and milder.”
Freezing Arctic air flooding the United States is clashing with milder air across southern parts of the Continent.
Contrasting air temperatures will drive a super-charged jet stream across the Atlantic on a collision course with Britain.
It will steer a barrage of low-pressure storms systems into the UK through the coming days, according to the Met Office.
Meteorologist Alex Deakin said: “Between Christmas and new year the weather patterns are likely to be quite changeable.
“There is the potential for low-pressure systems to bring wet and windy spells with the potential for brief colder spells in between.”
“It’s all tied in with what’s happening across the United States.
“Very cold air driving south is pepping up the jet stream, and the impact for the UK will be that as that cold air sinks south and hits that warm air, we get a contrast that drives the jet stream.
“This powers it even more, and that highly invigorated jet stream will then spread off into the Atlantic to perhaps switch up our weather systems.”
The jet stream flows along the divide between Polar air and milder air in the mid-latitudes, where the UK lies.
As the Polar front, which borders the two air masses, moves south, so does the jet stream, putting the UK at greater risk of unsettled weather.
The jet stream also powers low-pressure systems by helping pressure to drop at their core.
This means that as the jet picks up speed and moves along a southerly track across the Atlantic, Britain’s forecasts are likely to turn stormier.
Mr Deakin added: “If we look into Wednesday, we have an angry-looking jet stream a little further north compared to where it has been recently, and the core of that jet is really quite lively
“This is likely to be a breeding ground for areas of low pressure to be pushed up towards the UK.”
The Met Office has warned of a cold day in the north with up to four inches of snow possible while the south faces an inch and a half of rain.
Met Office meteorologist Jonathan Vautrey said: “Rain will readily turn to snow over Scotland with five to ten centimetres of snow budling up above 300 metres or so.
“Further south that will be falling as rain, so it will be a fairly wet day for western areas of England and particularly Wales where we could see 30 to 40mm of rain build up over the western upslips.
“Combine this with the coastal gales that will be developing across Irish sea coasts, and it could be a fairly miserable bank holiday for some.”
Eastern Britain will stay drier and milder as winds sweep up from the south, he added.
He said: “Throughout Tuesday evening that band of rain will continue to push south-eastwards across central and south-eastern areas of England.
“It is looking to stay fairly unsettled through the week.”
The US is currently battling the effects of a bomb cyclone–a rapidly deepening low-pressure system which results in extreme storm conditions and in low temperatures, heavy snow.
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