Winter Storm Warning issued December 28 at 12:28PM MST until December 30 at 11:00AM MST by NWS Riverton WY
* WHAT...Heavy snow. Additional snow accumulations between 12 and 25 inches, with locally higher amounts at the highest elevations. Additional accumulations up to 40 inches possible in the Teton Range. West winds gusting up to 40 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, and Salt River and Wyoming Ranges. * WHEN...Until 11 AM MST Monday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the morning and evening commutes on Teton Pass through Monday morning. * ADDITIONAL DETAILS...Snow rates around 2 inches per hour is possible Sunday evening in the Teton Range.
Avalanche Warning issued December 28 at 8:18AM MST by NWS Riverton WY
AVWRIW * WHAT...Avalanche danger is high in the backcountry due to significant snow falling on a weak snowpack. * WHERE...The mountains of western Wyoming including the Snake River, Salt River, Wyoming, Gros Ventre and Teton Ranges. The mountains of southeast Idaho, including the Palisades, Elk Mountains and Big Holes. * WHEN...In effect from Sat 18:00 MST to Sun 18:00 MST. * IMPACTS...Recent heavy snow combined with wind will likely create widespread areas of unstable snow. Human-triggered avalanches large enough to bury people are very likely to occur on most aspects and elevations in the backcountry. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel
Special Weather Statement issued December 28 at 5:07AM MST by NWS Riverton WY
This is a Special Weather Statement from the National Weather Service in Riverton. * WHAT...Southwest wind 25 to 35 mph with gusts 40 to 50 mph. Locally higher gusts to around 60 mph possible in the more wind prone areas like Wyoming Boulevard south of Casper. * WHERE...Natrona County, eastern Sweetwater County and the Green Mountains. * WHEN...Through this afternoon. * ADDITIONAL DETAILS...Motorists should watch for strong and sudden crosswinds, especially high profile vehicles.
Winter Storm Watch issued December 27 at 2:28AM MST until December 30 at 11:00AM MST by NWS Riverton WY
* WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 3 and 6 inches. For the Winter Storm Watch beginning 11 PM Friday, heavy snow possible through the weekend. Total snow accumulations between 8 and 18 inches possible. Wind gusts of 15 to 30 mph will lead to areas of blowing and drifting snow. * WHERE...Jackson Hole. * WHEN...For the Winter Weather Advisory, until 11 PM MST this evening. For the Winter Storm Watch, from this evening through Monday morning. * IMPACTS...Travel will be difficult. The hazardous conditions will impact the morning and evening commutes for multiple days.
Winter Storm Warning issued December 27 at 2:28AM MST until December 27 at 11:00PM MST by NWS Riverton WY
* WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations 5 to 10 inches. For the Winter Storm Watch beginning 11 PM Friday, heavy snow possible through the weekend. Total new snow accumulations of 18 to 36 inches, with 2 to 4 feet possible in the Teton Range. Westerly wind gusting 25 to 35 mph, resulting in areas of blowing and drifting snow. * WHERE...Teton and Gros Ventre Mountains and Salt River and Wyoming Ranges. * WHEN...For the Winter Storm Warning, until 11 PM MST this evening. For the Winter Storm Watch, from this evening through Monday morning. *
Winter Weather Advisory issued December 27 at 2:28AM MST until December 27 at 11:00PM MST by NWS Riverton WY
* WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 3 and 6 inches. For the Winter Storm Watch beginning 11 PM Friday, heavy snow possible through the weekend. Total snow accumulations between 8 and 18 inches possible. Wind gusts of 15 to 30 mph will lead to areas of blowing and drifting snow. * WHERE...Jackson Hole. * WHEN...For the Winter Weather Advisory, until 11 PM MST this evening. For the Winter Storm Watch, from this evening through Monday morning. * IMPACTS...Travel will be difficult. The hazardous conditions will impact the morning and evening commutes for multiple days.
Winter Weather Advisory issued December 26 at 4:32AM MST until December 27 at 11:00PM MST by NWS Riverton WY
* WHAT...Snow. Total snow accumulations between 5 and 10 inches. Wind gusting as high as 30 mph, resulting in drifting/blowing snow. * WHERE...Jackson Hole. * WHEN...Until 11 PM MST Friday. * IMPACTS...Travel will be difficult. The hazardous conditions could impact the Thursday and Friday morning and evening commutes.
Winter Storm Warning issued December 26 at 4:32AM MST until December 27 at 11:00PM MST by NWS Riverton WY
* WHAT...Heavy snow. Total snow accumulations between 6 and 12 inches. Wind gusting as high as 20 mph, resulting in drifting snow. * WHERE...Star Valley. The highest snowfall amounts will be in the foothills. * WHEN...Until 11 PM MST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
Winter Storm Watch issued December 25 at 1:58AM MST until December 27 at 11:00PM MST by NWS Riverton WY
* WHAT...Moderate to heavy snow possible. Total snow accumulations between 12 to 18 inches possible in the mountains; 5 to 10 inches in the Jackson/Star Valleys and most of Yellowstone NP, with similar amounts near Togwotee Pass. Winds could gust as high as 40 mph in the mountains during the day Thursday. * WHERE...Jackson Hole, Teton and Gros Ventre Mountains, Yellowstone National Park, Salt River and Wyoming Ranges, and Star Valley. * WHEN...From early Thursday morning through Friday evening. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the morning and evening commutes Thursday and Friday. * ADDITIONAL DETAILS...This
Winter Weather Advisory issued December 23 at 5:22AM MST until December 23 at 7:00PM MST by NWS Riverton WY
* WHAT...Snow. Snow accumulations between 8 and 12 inches across the Tetons, including Teton Pass; 3 to 6 inches across the Gros Ventres. Togwotee Pass will see 2 to 4 inches. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 7 PM MST Monday. * IMPACTS...Travel could be difficult at times across Teton Pass and Togwotee Pass. The heaviest snow will be after sunrise Monday through early afternoon. * ADDITIONAL DETAILS...Light snow will increase later this morning, with heavier snow falling during through the day Monday.