Add Yahoo as a preferred source to see more of our stories on Google. NORTHWEST ARKANSAS/RIVER VALLEY, Ark. (KNWA/KFTA) — For nearly the first half of January, temperatures have been unusually warm, ...

Cross-polar flow describes a unique meteorological setup most common during the winter. This is often responsible for many of the intense Arctic outbreaks that occur in the U.S. each decade. For cross ...