Meteorologists blame a stretched polar vortex, moisture, lack of sea ice for dangerous winter blast

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...
The Boston Globe

What is the dreaded polar vortex and how does it impact our weather?

It seems like you cannot mention cold weather in the fall and winter without coming across the phrase “polar vortex.” Meteorologists often refer to this weather element as a potential culprit behind ...