Parts of Louisiana were having a snowy start on Tuesday, January 21, as the National Weather Service (NWS) issued a winter storm warning.This footage was posted by the NWS, who said it shows snow falling at their office in Slidell.The NWS said the intensity of the snow would pick up throughout the morning and into the afternoon, and urged residents to “avoid all travel if at all possible.” Credit: National Weather Service via Storyful