Snow for the mountains this afternoon... This is a special weather statement from the National Weather Service Office in Riverton. * WHAT...Snow. Snowfall of 3 to 6 inches below 8500 feet. Snowfall of 6 to 10 inches above 8500 feet. * WHERE...Wind River Mountains, Salt River and Wyoming Ranges. * WHEN...This afternoon. Snow will decrease after 6 PM MDT. * ADDITIONAL DETAILS...Those planning outdoor activities in the high country should be prepared for cold and snow today.