The chances of snow falling in Suffolk could increase in the coming weeks as an unusual disruption high above the Arctic threatens to send colder air towards the UK.
There is currently no snow forecast for the county, but a dramatic weakening of the polar vortex could increase the possibility of wintry weather later this month.
The polar vortex, a circulation of powerful winds high above the Arctic, has weakened significantly and briefly split into two smaller circulations.
It is the earliest weakening of the polar vortex on record.
Forecasts suggest the winds could reverse by mid-November, potentially triggering a sudden stratospheric warming event.
Such disruptions can alter the jet stream, allowing colder northerly or easterly winds to bring Arctic air south and boost the possibility of snow, particularly across eastern Britain.
However, snow is far from guaranteed, particularly as the Arctic is not yet as cold as during midwinter.
Suffolk has already experienced several bouts of wintry weather this year, with snow falling across parts of the county during cold spells in January and February.
The Met Office has said its forecast for the coming days does not indicate a widespread or particularly significant cold spell, with temperatures expected to remain broadly around average for the time of year.
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