When it starts
Brighton, Dec 6, 2025: the model's run on the day said 4.1" skiable (Nice day); the Brighton SNOTEL pillow gained 2" of depth. Close.
Close. 4.1" skiable in the model, 2" on the pillow: inside 3" or 30%.
Pack going in: 10" on Dec 5, 12" on Dec 6. 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 |
|---|---|---|---|---|---|---|---|---|
| Sat Dec 6 | Nice day | 2.4" | 1.7" | 4.1" | ~10pm Friday | 12" | 12" | 0" |
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 PowHound does not keep superseded live forecasts, so this is not the number you saw the night before.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 Brighton 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.