BIG HORN

...A change to much colder temperatures and some snow this weekend for much of northern and central Wyoming... After spring high temperatures through Friday, a major change to cold and snow will occur. Saturday morning, in northern Wyoming, rain will occur, then change to snow in the afternoon as much colder air moves into the region. Then periods of snow will occur Saturday night and Sunday morning in northern Wyoming. Portions of the Absaroka and Bighorn mountains may see snowfall amounts over 12 inches. The lower elevations of Johnson county may see 3 to 6 inches of snow by Sunday afternoon. The Big Horn Basin and Cody foothills may see snowfall of 2 to 5 inches with lesser amounts in the Greybull area. For central Wyoming, areas of rain will develop Saturday afternoon. Rain will change to snow Saturday evening as the cold air moves into this region. Then periods of snow will occur through Sunday afternoon in central Wyoming. Snowfall amounts of 3 to 6 inches may occur from Lander to Riverton to Casper. Around 3 inches of snow may occur in the Dubois area. Snowfall in the east slopes of the Wind River mountains and around Casper Mountain may be as much as 12 inches in places. High temperatures on Sunday will only be in the 20s to lower 30s with teens to lower 20s in the mountains. A brisk north wind of 15 to 20 mph on Saturday night and Sunday will drop wind chill readings into the single digits and teens. Ranchers and those with outdoor interests this weekend should be prepared for the wet and cold, winter-like conditions, from Saturday afternoon through Sunday afternoon.