Accuweather
Arctic Blast via ‘Polar Vortex’ to Chill 42 States…
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.”
Dr. Roy Spencer
-30° Wyoming
Even though it’s still early November, a January-like cold wave just entering Montana and the Dakotas on Sunday will bring 30 below zero temperatures to scattered locations in Montana and Wyoming by Wednesday morning.
The cold will fill the nation’s midsection by mid-week, with no let up in sight. The coldest air to arrive in a series of reinforcing surges is still a week away.
Temperatures are forecast to run 15 to 30 deg. F below normal for at least 5 days over a large portion of the central U.S. starting late in the coming week (graphic courtesy of Weatherbell.com, click to enlarge):
Minnesota Forecast calls for up to 10 inches of snow! http://www.startribune.com/local/2820…