Science Says: Get used to polar vortex outbreaks

WASHINGTON (AP) — A sudden blast of warm air unleashed the dreaded polar vortex from its Arctic cage. Now, the Midwest is about to feel the effects of its icy grip.
Get used to it. The polar vortex has been wandering more often in recent years. This time, its Arctic chill is here for an extended visit.
Judah Cohen is a winter storm expert for Atmospheric Environmental Research. He says it all started with misplaced Moroccan heat. Meteorologists watched last month when the normally super ch