Scotland could be hit by a 'rare' snow storm in October, sparking fears of a White Halloween. After a pleasant start to the month, temperatures have started to plummet due to an 'unusual' weakening in the polar vortex.October 24 is the suggested date for a drop below 0C in Scotland, with some parts of the country expecting lows of -1C.
Snow could even fall by Halloween - a 'rare' phenomenon last seen 13 years ago in 2008. According to meteorologists, high intensity winds and severe cold could last until November as the polar vortex goes into reverse.
A polar vortex is a low pressure area - a wide expanse of swirling cold air - that is parked in polar regions. During winter, the polar vortex at the North Pole expands, sending cold air
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