Current predictions call for rain Saturday but no snow ... polar air comes south sometimes where the polar jet stream ...
This blast of cold weather is due to activity of the polar vortex.
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...
The coldest air of the season will sweep into the province this weekend, courtesy of a polar vortex. It has been a relatively ...
These outbreaks can happen when the polar vortex is in a weaker state, allowing cold air that is normally confined to the ...
Most of the USA is currently freezing. Since the weekend, a polar cold front has swept across the country, reaching as far as ...