Weakening polar vortex may raise UK risk of colder weather
The Met Office says a weakening stratospheric polar vortex could increase the chance of colder conditions and Arctic air reaching the UK.
A Sudden Stratospheric Warming event may come early. It may happen if this change continues.
UK weather may not change. Forecasters are watching it.
The change may bring winter showers. It may bring heavy snow.
But cold weather is not sure. The event may not affect the UK much.
Met Office forecaster Marco Petagna spoke. UK temperatures may change weeks after the warming.
This may happen if the warming develops. These events can bring cold weather.
They do not always bring cold weather.
Section: Science