UK Polar Vortex Snow Weather Forecast
In short
A polar vortex snow forecast occurs when a large area of freezing air from the Arctic moves south towards the United Kingdom. This shift in wind patterns often brings sudden drops in temperature and heavy snowfall.
In plain words
The polar vortex is a spinning pool of very cold air high above the North Pole. When this pool weakens or wobbles, the cold air spills down into Europe. This can cause freezing weather and snow across the UK.
A simple example
A sudden week of heavy snow in London during January might be caused by a polar vortex event. This happens when the cold Arctic air travels much further south than usual.
Why it matters
These weather events can cause travel chaos, power cuts, and dangerous driving conditions. They are important for people to track so they can prepare for extreme cold.
Easy to mix up
Do not confuse the polar vortex with a standard cold snap, which is just a brief period of low temperatures.