Wintercast: Polar Vortext

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. Reid Kisselback tells us how this could help determine just how cold it’s going to get.

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth's poles. Reid Kisselback tells us how this could help determine just how cold it's going to get.