Score trend pulse
Among open resorts with a latest SnowSure trend signal (14 mountains). GPT-4o labels each score as improving, stable, or declining.
Improving
7.1%
1 resorts
Stable
92.9%
13 resorts
Declining
0%
0 resorts
Powder days this season
Tracked powder events, SnowSure-only. Northern Hemisphere 2026–27 · Southern Hemisphere 2026.
| 1 | Caviahue | 66 days |
| 2 | Las Leñas | 65 days |
| 3 | Nevados de Chillán | 62 days |
| 4 | El Colorado | 59 days |
| 5 | Valle Nevado | 58 days |
| 6 | Corralco | 53 days |
| 7 | Chapelco | 52 days |
| 8 | Portillo | 52 days |
| 9 | Antuco | 51 days |
| 10 | La Parva | 49 days |
| 11 | Cerro Catedral | 45 days |
Bluebird days this season
Clear-sky powder mornings, verified or predicted. Northern Hemisphere 2026–27 · Southern Hemisphere 2026.
| 1 | Lagunillas | 14 days |
| 2 | El Colorado | 10 days |
| 3 | Valle Nevado | 9 days |
| 4 | Nevados de Chillán | 8 days |
| 5 | Roundhill | 8 days |
| 6 | La Parva | 8 days |
| 7 | Las Leñas | 8 days |
| 8 | Mt Dobson | 8 days |
| 9 | Portillo | 7 days |
| 10 | Mt Hutt | 7 days |
| 11 | Ōhau | 6 days |
Where models disagree
14-day snowfall spread across ECMWF, GFS, GEM, JMA, ICON, Météo-France, and Met Norway — minimum 5 cm spread to qualify.
Worldwide 14-day rankings are in SnowSure Pro.
Unlock with ProDays 8–14 outlook
Average of 7 models — the plain average of the seven weather models for the second week of the 14-day window. Ranked by forecast cm over days 8–14 (13 open resorts).
Worldwide 14-day rankings are in SnowSure Pro.
Unlock with ProUpcoming bluebird predictions
Predicted clear-sky powder mornings 1–3 days ahead. Track record: 0/256 verified correct (0%).
| Resort | Predicted day | Confidence | Fresh snow |
|---|---|---|---|
| Arapahoe Basin | Wed, Nov 4 | medium | 6 cm |
| Schilthorn | Tue, Nov 10 | medium | 9 cm |
| Engelberg-Titlis | Tue, Nov 10 | medium | 8 cm |
| Brian Head Resort | Thu, Nov 12 | low | 7 cm |
Best model by region
Weekly MAE-based skill scores from verified forecasts. See Forecast Trust for the full verification corpus.
| Region | Top model | Skill score |
|---|---|---|
| Alps | NBM | 87.4 |
| andes | ICON | 57.4 |
| cascades | ECMWF | 71.3 |
| Rockies | ECMWF | 79.4 |
Use this data in your app
Every dataset on this page is available via public REST endpoints and the SnowSure MCP server. Start with the trends catalog, or pull per-resort season stats and score component history.
GET /api/v1/trends · GET /api/v1/leaderboards/extended-outlook · GET /api/v1/forecasts/disagreement
