URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 118 PM MST Sun Dec 18 2022 WYZ023-024-191300- /O.NEW.KRIW.WS.A.0012.221220T0600Z-221222T0600Z/ Star Valley-Salt River and Wyoming Ranges- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 118 PM MST Sun Dec 18 2022 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY EVENING... * WHAT...Heavy snow and blowing snow possible. Total snow accumulations of 4 to 8 inches in the lower elevations. In the mountains, 12 to 18 inches expected. Winds could gust as high as 55 mph in the mountains. * WHERE...Star Valley and Salt River and Wyoming Ranges. * WHEN...From Monday evening through Wednesday evening. The heaviest snow is expected late Tuesday night through Wednesday evening. * IMPACTS...Travel could be very difficult especially over mountain passes which includes Salt River Pass. Snow and blowing snow will severely limit visibility at times especially in the mountains. * ADDITIONAL DETAILS...Backcountry enthusiasts including snowmobilers can easily become disoriented and lost. Frostbite and hypothermia can set in quickly. Please monitor the Bridger- Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the backcountry. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation.