By Brian Lada, Meteorologist
November 9, 2014
As the polar vortex gets displaced to the south, the door will open for arctic air to plunge over the most of the United States as the new week progresses.
Only the Southwest, Hawaii, Alaska and South Florida will escape the grip of the upcoming arctic blast that the polar vortex can be blamed for.
“The polar vortex is a large pocket of very cold air, typically the coldest air in the Northern Hemisphere, which sits over the polar region,” stated AccuWeather.com Senior Meteorologist Alex Sosnowski.
“Occasionally, this pocket of very cold air can get dislodged farther south than normal, leading to cold outbreaks in Canada and the U.S.”
For this current outbreak, the harshest cold in relation to normal will encompass the northern Rockies and Plains. However, temperatures will also plummet throughout the Northwest and to the Gulf Coast and I-95 corridor.
The arctic blast will drop into the northern Rockies on Monday, accompanied by a snowstorm on its leading edge, then will spread across the Northwest and Plains through Wednesday.