Heavy fog and precipitation from a snow squall caused a mass pileup Monday on a Pennsylvania highway and sent about 20 people to area hospitals, authorities said. About 40 vehicles crashed in the wreckage on Interstate 81, according to John Blickley, deputy emergency management coordinator for Schuylkill County. https://cnn.it/36VTOoL 📹: Mike Moye | CNN

51K views · 200 reactions | WHOA! This is a 10 to 40 car pileup on US 222 near US 422 in Berks County. Officials tell us they don't know an exact number of cars involved, but that it was caused by a snow squall. (Credit: Kim Hart) https://local21news.com/news/local/snow-squall-causes-multi-vehicle-crash-on-us-222-in-berks-county | Local 21 CBS News, WHP Harrisburg | Facebook

3 dead after snow squall causes mass pileup on Pennsylvania highway on Tuesday... | St Vincent Times

1.2K views · 24 reactions | It's Snow Squall Safety Day! ❄️ Our theme is simple: When a Snow Squall Warning is issued, delay travel or safely exit the highway. After you watch this video, you'll see why. Stay tuned all day long to learn more about this dangerous winter hazard. #SnowSquallSafety | US National Weather Service New York NY | Facebook