Heavy snowfall hit Flagstaff, Arizona, on Tuesday, January 17, as winter storms swept the region.A winter storm warning was in effect for the city on Tuesday, with the National Weather Service (NWS) saying travel could be “very difficult to almost impossible”.Footage by Twitter user @Az49erGirl shows her backyard in Flagstaff blanketed in thick snow.The NWS reported the snowfall total for Flagstaff since Saturday night reached 30 inches. Credit: @Az49erGirl via Storyful