as some other parts of the country that already received an arctic blast this week prepared to go another round with the plunging polarvortex. Arkansas' capital, LittleRock, closed schools ...
things get a little chaotic. A weaker jet stream becomes wavy and unstable, like a loose rope in the wind. This instability allows cold Arctic air from the polarvortex to spill southward into ...
These outbreaks can happen when the polarvortex is in a weaker state, allowing cold air that is normally confined to the north to break off and move further south. Some experts say this is ...
What’s shaping up to be the most expansive polarvortex in over a decade is about to plunge much of North America, including nearly all of Canada, into the coldest temperatures the country has ...
The polarvortex is responsible for next week’s cold, which will bring extreme cold as far as the deep south. The cold air will hang around Monday, Tuesday and Wednesday, bringing below-zero ...