Residents in Montana should brace themselves for a series of winter weather advisories affecting various regions through Sunday. The Snowy and Judith Mountains, as well as the mountains of Southwestern Montana, Big Belt, Bridger, Castle, Elkhorn, and Boulder Mountains, are expected to receive an additional 1 to 3 inches of snow, with the higher terrain potentially accumulating up to a foot. Travel could be very challenging, particularly in areas like the Little Belt and Highwood Mountains, where up to 5 inches of snow could fall. The Melville Foothills and the Crazy Mountains are also anticipating further snowfall, with the latter under a winter storm warning for heavy snow up to 12 inches. Drivers along US-191 and other roadways should expect reduced visibility and slushy conditions. The Butte/Blackfoot Region is under a winter storm watch, with a significant snowfall possible, impacting travel and outdoor activities. All residents are urged to exercise caution and be prepared for hazardous driving conditions.