While cold temperatures and snow are not at all unexpected in many parts of the world, they are quite rare in others. In ...

Millions of Americans were hit with blustery blizzards last month when a polar vortex collapse ushered in below freezing temperatures across much of North America ...

Sudden stratospheric warming (SSW) is a fascinating yet perplexing weather phenomenon that has meteorologists scratching ...

A polar vortex collapse is predicted to bring severe winter-like weather to parts of Canada and the US around the middle of this month. This same weather event affected several regions across ...

Powerful winter storms which led to deaths and power outages in the UK and Ireland were made more likely by an intense ...

Next week, it’s expected we’ll be more hot than cold. While some have been talking about the collapse of the polar vortex, which can bring cold weather from the north down, it doesn’t look like it ...

Instead of a late-season deep freeze, eastern Ontario is on track for a warmer-than-usual March Break, with spring-like temperatures likely continuing in the weeks that follow. The polar vortex is ...

The phenomenon is characterised by a reversal of winds, the stratosphere polar vortex, high in the stratosphere ... their flow and cause the jet to “break just like waves on the beach”.

This causes the polar vortex to break down. However, it is so high up that we don’t actually feel the ‘warming’ ourselves, but it can cause a knock-on effect a few weeks later, affecting the weather ...

When a polar vortex breaks down entirely, it is called "sudden stratospheric warming (SSW)." This has been linked to many spells of cold winter weather in recent years, according to the Met Office.