Extreme snowfall rates of 4" an hour in York, PA. 2" fell over the course of 30 minutes. Road conditions are deteriorating fast and visibility is low. @JimCantore @WeatherNation @accuweather @islivingston @NWSStateCollege @weatherchannel pic.twitter.com/a6K3DK7Gee

— Elan Azriel (@elanazriel) February 20, 2019