It might only be the day after Bonfire Night but, as Ned Stark so aptly put it, winter is coming.
North Pole winds are set to send temperatures plummeting as low as -10C in some areas of the UK tonight, with snowfall in the east Scottish Highlands also set to continue.
A Met Office has told The Sun: "Pacific cooling is very likely to continue in coming weeks, leading to a full La Nina event over the next few months.
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"The risk of colder-than-normal conditions remains a significant possibility, with drivers of UK winter weather such as La Nina favouring colder-than-normal weather."
La Nina is the weather event counterpart of El Nino. It causes the sea surface temperature across the Eastern Central Pacific Ocean to drop by three to five degrees Celsius and can also result in intense storms and droughts.
The Met Office spokesperson added: "Snow and ice will be a much higher threat this winter, and could affect London.
"There is a higher-than-normal potential for temperatures below -10°C further north, and also cold temperatures further south."
Weather experts have predicted the coming winter could be the coldest in five years. In 2012/13 there was chaos on British roads and rail links, following heavy snow fall.
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Around 31,000 people died in England and Wales from the winter, a 29 percent increase on the year before.
According to the Office for National Statistics: "The number of excess winter deaths in 2012/13 was the highest since 2008/09, yet was still 17 percent lower than the 36,450 excess winter deaths reported for the 2008/09 winter."
Todd Crawford, chief meteorologist at The Weather Company, said: "We expect the coldest winter in the UK since 2012-13.
"We expect extended spells with a ridge of pressure in the North Atlantic, especially in early winter.
"This forces the jet stream up to the Arctic and back down into Europe, releasing Arctic high pressure from near the Pole directly into northern Europe, with colder-than-normal temperatures."
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