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

Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles.

While Phil may see his shadow Sunday, forecasters haven't seen theirs. On average, February is Philly's snowiest month.

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

After our coldest January in 11 years, February is set to start warm and, at times, wet. But the weather may turn cold and ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

Long-range weather models indicate the Arctic Oscillation will turn negative sometime around March 7. This season already produced one sudden stratospheric warming and associated polar vortex disr ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

The Polar Vortex is a large spinning area of cold air typically centered over the arctic. However, sometimes high pressure develops over the north pole. The Arctic Oscillation refers to wobbles ...

Why pieces of the Polar Vortex (Arctic Pig) will return for February & Potential corn crop risks in Argentina” Weekend Report ...

"What we're really seeing with this particular arctic outbreak is really just that oscillation of that polar vortex and it's beginning to wobble southeastward, allowing that cold air to really spill ...

However, as the polar vortex stretches in the coming week, it will extend its icy grip across the Prairies, Hudson Bay, spreading east into Ontario and Quebec. With the Arctic air’s density and ...