A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more likely. Last winter, a significant Polar Vortex disruption during January ...

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

This winter, it seems as if temperatures have been fluctuating more significantly. Over the past year, it seems as if severe weather events have been occurring more frequently as well. Answers as ...

The polar vortex can be disrupted by factors such as natural turbulence, high-latitude ocean warming, sea ice loss, sudden atmospheric warming, planetary waves and climate change, says the ...

The polar vortex can dip into North America mainly due to a weakened jet stream. In the mid-latitudes, the Twin Tiers is in the mid-latitude, the jet stream is called the prevailing westerlies as it ...

The polar dance ... stream over the mid-latitudes in the U.S. may counteract each other. “We have big uncertainty about what’s going to happen with the stratospheric polar vortex,” Simpson ...