A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of ...

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

Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles. Think of it as a barrier that, when strong, keeps icy polar air trapped up ...

Winter in the CSRA is usually mild overall, but every now and then, we get a taste of true Arctic air. If you’ve ever ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

Freezing temperatures and low wind power production will put further pressure on Europe’s strained energy market, as natural ...

The polar vortex might be considered the jet stream’s upstairs neighbor in the wintertime. It appears in September, when a seasonal lack of sunlight begins to make it cooler inside the Arctic ...

As we continue to warm moving into February, it appears latest trends suggest a classic "what goes up, must come down" type ...

A rush of Arctic air will plunge parts of North America into bitter cold this weekend, bringing heavy snow, strong winds and frigid temperatures to parts of Canada.

Sometimes, lobes of the polar vortex can separate and get stuck well to the south. Multiple studies have strengthened scientists’ understanding of the phenomena as a consequence of Arctic ...

With that idea there would be a warm push from the south. The warm push would hold the polar vortex in check and keep the true Arctic air even farther north. We still have plenty of winter weather ...