Why the winter storm that’s about to hit could be especially treacherous for flying

U.S. airlines are likely to face a brutal test over the weekend as snowstorms and arctic air predicted to blanket large swaths of the U.S. will begin to impact their operations as early as Friday.

A couple of U.S. airlines have already issued weather advisories ahead of what the National Weather Service is calling a

“large, long-duration winter storm.”