"Thursday afternoon through Friday night stays mainly dry, cool, and breezy across the region. The individual models are tightly clustered on only isolated high-terrain showers over northwest Montana and the northern Idaho Panhandle, with snow levels generally near 5,000 feet where flakes occur. Winds remain the more noticeable ski-weather factor before the weekend system, especially on exposed ridges, while temperatures stay seasonable to slightly cool with chilly mornings."
"Late Saturday through Tuesday is the main snow period, with Big Sky near 7-12 inches, Bridger Bowl near 5-9 inches, and Grand Targhee and Whitefish Mountain near 3-5 inches. The individual models converge on a sharp cooldown and widespread mountain showers as the trough drops through the Northern Rockies, with snow levels falling toward 4,000 to 5,000 feet by Sunday and locally lower in the coldest pockets."
"Confidence is strongest from Saturday through Tuesday on the broader trough and snow-level drop, but the models diverge on Monday and Tuesday intensity, when some guidance keeps the Montana and Teton snow going while faster solutions taper it sooner. Snow quality looks dense to moderate overall, with SLRs mostly 8:1 to 12:1, and wind guidance is fairly consistent on northwest gusts commonly reaching 25-40 mph during the colder part of the storm."
"Most winter lift-served terrain is closed, so this is more of a mountain-snow and access-dependent update than a classic resort powder chase, with open base-area operations at Bogus Basin and Tamarack seeing little accumulating snow. The strongest totals favor Big Sky and Bridger Bowl, while the Tetons, northwest Montana, and the Idaho Panhandle pick up lighter accumulations."
Thursday afternoon through Friday night remains mostly dry, cool, and breezy, with only isolated high-terrain showers possible over northwest Montana and the northern Idaho Panhandle. Snow levels stay near 5,000 feet where flakes occur, and winds are the main ski-weather factor before the weekend system. Late Saturday through Tuesday brings the primary snow period as a trough drops through the Northern Rockies, producing widespread mountain showers and a sharp cooldown. Snow levels fall toward 4,000 to 5,000 feet by Sunday, locally lower in colder pockets. Big Sky and Bridger Bowl receive the strongest accumulations, while the Tetons, northwest Montana, and the Idaho Panhandle see lighter totals. Snow quality is dense to moderate with SLRs mostly 8:1 to 12:1, and northwest gusts commonly reach 25–40 mph during the colder part of the storm.
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