Snow is falling across parts of the Northeast as a clipper system moves through just days before Christmas. Lake-effect snow could bring a white Christmas to some areas and impact holiday travel, especially in upstate New York. Katie Byrne breaks down what to expect. #FoxWeather #WinterWeather #WhiteChristmas #Snow #ChristmasTravel #Northeast #LakeEffectSnow #KatieByrne Subscribe to Fox News: https://bit.ly/2vBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox News Channel Live: