Nearly 24 hours after snow squalls created white-out conditions on an Eastern Pennsylvania highway, resulting in a 50- to 60-vehicle pileup that claimed the lives of three people and injured many ...

A snow squall is an intense period of moderate-to-heavy snowfall of limited duration that is accompanied by strong, gusty surface winds and possibly lightning.

A snow squall is an intense period of moderate-to-heavy snowfall of limited duration that is accompanied by strong, gusty surface winds and possibly lightning.