When it starts
Grand Targhee, Dec 22–24, 2025: the model's run on the day said 5.5" skiable over 3 days, best Monday at 4.7" (Nice day); the Grand Targhee SNOTEL pillow gained 3" of depth. Close.
Close. 5.5" skiable in the model, 3" on the pillow: inside 3" or 30%.
Pack going in: 59" on Dec 21, 54" on Dec 22. The storm total counts from the first reading, so snow after 5pm the night before is in it.
| Day | Call | First chair | On hill | Skiable | Starts | Pillow before | Pillow after | Gain |
|---|---|---|---|---|---|---|---|---|
| Mon Dec 22 | Nice day | 3.4" | 1.3" | 4.7" | ~5pm Sunday | 54" | 53" | -1" |
| Tue Dec 23 | Stay home | 0.8" | 0.0" | 0.8" | ~5pm Monday | 53" | 57" | +4" |
| Wed Dec 24 | Stay home | 0.0" | 0.0" | 0.0" | — | 57" | 62" | +5" |
Model: the run on the day (Open-Meteo Previous Runs, best_match). PowHound does not keep superseded live forecasts, so this is not the number you saw the night before. It is usually closer.
Clocks, local time: first chair 5pm–8am, on hill 8am–5pm, skiable is both. Stay home under 2", Nice day 2–8", Full Send 8" or more.
Pillow: snow depth at the Grand Targhee SNOTEL station, read once a day around midnight. A day's gain is the next midnight reading minus that day's, so it runs midnight to midnight, not 5pm to 5pm. Depth is not snowfall: new snow settles and blows around, so the pillow usually reads under what fell. Not the resort report.
Verdict: close is within 3" or 30%. Season numbers and method: llms.txt.