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 ...
Journal Gazette and Times Courier

Get used to the cold; The polar vortex, explained

WASHINGTON (AP) — It might seem counterintuitive, but the dreaded polar vortex is bringing its icy grip to the Midwest thanks to a sudden blast of warm air in the Arctic. Get used to it. The polar ...