A significant winter storm system is set to blanket western Wyoming with heavy snowfall and gusty winds this weekend, according to forecasts from the National Weather Service (NWS) in Riverton.
The storm, which begins Friday evening and is expected to continue through Monday morning, will impact travel and daily activities across the region.
- Jackson Valley: Anticipated snowfall between 8 and 18 inches.
- Star Valley: Forecasted accumulation of 6 to 14 inches.
- Teton Range: Expected to receive between 2 and 4 feet of snow.
- Gros Ventre, Salt River, and Wyoming Ranges: Estimated snowfall of 18 to 36 inches.
- Wind River and Absaroka Mountains: Up to 2 feet in most areas, with localized accumulations of up to 36 inches.
Yellowstone National Park will also experience notable snowfall, with 4 inches projected at Mammoth Hot Springs and up to 7 inches in areas near Old Faithful.
A Winter Storm Watch is in effect starting at 11 p.m. Friday, Dec. 27. Alongside heavy snowfall, winds ranging from 15 to 30 mph are expected to cause blowing and drifting snow in the valleys, with gusts up to 80 mph along highways such as Interstates 25 and 80. The hazardous conditions will likely disrupt morning and evening commutes, particularly on Teton Pass, where the NWS advises motorists to carry an emergency kit with food, water, and a flashlight.
Meteorologist Don Day of the Cowboy State Daily describes the incoming system as a “parade of Pacific storms.” He explained:
“It will be like a wave of snow, break, wave of snow, break.”
These successive systems are expected to bring substantial moisture to the western mountain ranges, leaving lower elevations with moderate snowfall and gusty winds.
The NWS has urged travelers to exercise caution and prepare for potential delays or emergencies. Those planning backcountry trips or travel through remote areas should be aware of rapidly changing conditions and challenging terrain.
As weather conditions are subject to change, the NWS encourages residents to check their website regularly for the latest updates and advisories.
With input from Buckrail and Cowboy State Daily.
