A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

Answers as to why these strange temperatures and weather events are prevalent may be found in the polar vortex. The polar vortex is a large area of low pressure and cold air surrounding both of ...

Record temperatures broken across the U.S. turned “polar vortex” into viral catnip on social media and thrusted it into our everyday vocabulary. The polar vortex is a broad area of low pressure high ...

Answers as to why these strange temperatures and weather events are prevalent may be found in the polar vortex. The polar vortex is a large area of low pressure and cold air ... observing conditions ...

Here's how the polar ... says. Sea ice is one of them – some models suggest melting sea ice may have a weakening effect on the vortex. However, warming in the upper layers of the atmosphere ...

This is what a split in the polar vortex looks like ... When we have a positive NAO, lower level features are not very progressive. This means they aren’t moving! This chart depicts what ...