Polar vortex to bring triple whammy of Arctic cold to US through mid-December [View all]
The polar vortex is on the move and will take up a position near Hudson Bay, Canada, directing rounds of Arctic air southward from the North Pole to parts of the central and eastern United States through the middle of the month. The waves of Arctic air will trigger rounds of flurries and squalls in some areas and may help fuel storms with more widespread snow.
The Arctic air is expected to deliver subzero temperatures from the Dakotas and Minnesota to Iowa and Nebraska, and by far the lowest temperatures of the season so far for much of the balance of the Central states and Northeast.
"This Arctic air outbreak can be attributed to a displacement of the polar vortex," AccuWeather Lead Long-Range Meteorologist Paul Pastelok said.
"The outbreak this week will be the first of probably three such rounds with it. Another cold blast is likely next week and a third the week after that," Pastelok explained. "The waves of Arctic air will lead to significant surges in energy demands."
https://www.yahoo.com/news/articles/polar-vortex-bring-triple-whammy-183458197.html
= new reply since forum marked as read