The big winter (and popular) topic is dusted off very early this season as frigid air plunges south for Veterans' Day. But what is the Polar Vortex, exactly?

Across the Central and Eastern US, wetter-than-average conditions are expected while much of the East will see above-average temperatures. The opposite is expected in the West, as California and the Northwest will likely face below-average temperatures through the end of the month.

Next week’s pre-winter arctic plunge might be a sign of things to come for the Eastern U.S., as several key weather patterns will converge to bring early bone-chilling cold and potentially

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Florida Fish and Wildlife Conservation Commission officials said iguanas can become either immobilized or sluggish when temperatures hit between 40 and 50 degrees. Longer cold snaps with overcast skies that prevent basking for warmth can be deadly as the paralyzed iguanas become easy prey to vultures, bobcats and coyotes.

As the winter season unfolds, meteorologists are looking at many things in the atmosphere that can influence our temperatures and snowfall. The polar vortex is one

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward into the central and Eastern United States This is what a ...

If you’re among the Canadians hoping for a white Christmas this year, there’s good news and bad news. The good news is that some forecast models point to conditions favourable for snowfall. The bad news is that it’s due to the Arctic polar vortex, which could also bring extremely cold temperatures this holiday season.