Weather
A long, windy storm cycle will shape the Northern Rockies from Wednesday through Saturday night, with the deepest snow focused on northwest Montana, the Idaho Panhandle, and central Idaho while southwest Idaho stays mostly windy and marginal for accumulation. Confidence is best from Wednesday morning through Saturday night, when guidance is aligned on repeated precipitation, a major wind spike Thursday, and a colder reset late Saturday. Expect the snow to come in dense to moderate through the warm part of the storm, especially at lower-elevation Idaho and Wyoming terrain, before quality improves some on the back side.
Wednesday through Thursday night is the most locked-in part of the forecast, and guidance is closely converged on strong west to northwest wind plus steady snowfall from Whitefish and Schweitzer south into Brundage. Exposed terrain will be rough, with many resorts seeing gusts in the 50-70 mph range and locally higher ridge gusts around Whitefish, Schweitzer, Bridger Bowl, Big Sky, Grand Targhee, and Jackson Hole. Snow levels also show good agreement on the broad pattern: mostly near valley floors to 5,000 feet in northwest Montana and the Idaho Panhandle, around 5,300-6,600 feet in central Idaho, and closer to 6,000-7,500 feet in western Wyoming and southwest Montana during the warmest part of the event. That keeps Whitefish and Schweitzer in consistently productive snow, gives Brundage the steadiest Idaho refresh, and leaves Sun Valley and Bogus Basin mostly dealing with wind and only spotty light snow. Snow quality through this phase looks dense to moderate, with SLRs generally running about 8:1 to 12:1.
Friday into Saturday night still favors more accumulation, but this is where guidance begins to diverge on intensity, snow levels, and how quickly colder air reaches the southern half of the region. The northern tier remains the safest bet for continued snowfall, while Big Sky, Bridger Bowl, Jackson Hole, and Grand Targhee depend more on Saturday’s colder push to turn mixed, heavy precipitation into better ski snow. At Brundage and Tamarack, snow keeps falling but stays wetter, with snow levels frequently near the middle elevations and SLRs closer to 7:1 to 10:1. Farther east, guidance clusters on another windy Saturday, but totals vary more because snow levels can swing from roughly 7,000 feet down below 4,000 feet as the front passes. The result is a storm that should ski best first in northwest Montana and the Idaho Panhandle, then improve late Saturday at Big Sky and Bridger Bowl as the snow gets lighter and less dense.
After Saturday night, confidence drops quickly and the pattern looks more like leftover snow bands Sunday into Monday followed by a pronounced spring warm-up. Most guidance still points to a few more inches at Whitefish, Schweitzer, Big Sky, Bridger Bowl, and Jackson Hole, with lighter odds elsewhere, but timing and placement spread widens too much to be more specific. By Monday and Tuesday, temperatures rise sharply, many mid-mountain elevations push into the 40s and 50s, and lower Idaho terrain turns notably springlike. The broader signal beyond that still favors above-normal warmth across Idaho, Montana, and Wyoming, with the better chance for any additional active weather holding closer to western Montana than to the southern Idaho resorts.
Resort Forecast Totals (Wed Mar 11 – Sat Mar 14)
- Whitefish Mountain – 18"-25"
- Schweitzer – 13"-19"
- Brundage – 13"-18"
- Grand Targhee – 6"-9"
- Bridger Bowl – 5"-8"
- Big Sky – 5"-7"
- Tamarack – 4"-5"
- Jackson Hole – 3"-5"
- Sun Valley – 1"-2"
- Bogus Basin – 0"
