People walk bundled up against the cold and snow during a winter storm in Philadelphia, Thursday, Feb. 9, 2017. A powerful, fast-moving storm swept through the northeastern U.S. Thursday, making for a slippery morning commute and leaving some residents bracing for blizzard conditions. (AP Photo/Matt Rourke)
There is more that goes into the creation of a blizzard than just snow. The conditions have to be perfect for a winter storm to be considered a blizzard.
