Cold air originating from the Arctic Ocean was dislodged earlier this week and spilled south across the United States. As a ...

The polar vortex, as explained by the National Weather Service, is a large area of low pressure and cold air that encircles ...

Miles above the Earth, two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes ...

Some big fronts are slated to pass through our viewing area over the next few days. Will this be the final move of winter ...

The biggest weather impact during Monday and Tuesday will be the combination of very cold temperatures with a gusty wind, ...

Chicago could face -20 to -30 degree temperatures next week as winter barrels forward with the potential of dumping a ...