Score trend pulse
Among open resorts with a latest SnowSure trend signal (58 mountains). GPT-4o labels each score as improving, stable, or declining.
Improving
32.8%
19 resorts
Stable
63.8%
37 resorts
Declining
3.4%
2 resorts
Powder days this season
Tracked powder events, SnowSure-only. Northern Hemisphere 2026–27 · Southern Hemisphere 2026.
| 1 | Las Leñas | 41 days |
| 2 | Caviahue | 39 days |
| 3 | Portillo | 33 days |
| 4 | El Colorado | 33 days |
| 5 | Valle Nevado | 33 days |
| 6 | Corralco | 32 days |
| 7 | Chapelco | 32 days |
| 8 | Nevados de Chillán | 31 days |
| 9 | Cerro Catedral | 29 days |
| 10 | Whistler Blackcomb | 27 days |
| 11 | Antillanca | 27 days |
Bluebird days this season
Clear-sky powder mornings, verified or predicted. Northern Hemisphere 2026–27 · Southern Hemisphere 2026.
| 1 | Valle Nevado | 6 days |
| 2 | El Colorado | 6 days |
| 3 | La Parva | 5 days |
| 4 | Mt Dobson | 4 days |
| 5 | Mt Hutt | 4 days |
| 6 | Roundhill | 4 days |
| 7 | Val d'Isère | 3 days |
| 8 | Antillanca | 3 days |
| 9 | Selwyn | 3 days |
| 10 | La Grave | 3 days |
| 11 | Sainte-Foy-Tarentaise | 3 days |
| 12 | Courmayeur | 3 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.
| # | Resort | Spread | Avg forecast |
|---|---|---|---|
| 1 | Las AraucariasChile | 257.4 cm | 181.2 cm |
| 2 | Nevados de ChillánChile | 250.3 cm | 242.8 cm |
| 3 | Volcán OsornoChile | 233.8 cm | 186.1 cm |
| 4 | La ParvaChile | 207.3 cm | 155.7 cm |
| 5 | Valle NevadoChile | 206.4 cm | 154 cm |
| 6 | AntucoChile | 195.9 cm | 158.5 cm |
| 7 | CorralcoChile | 176.3 cm | 153.9 cm |
| 8 | Las LeñasArgentina | 168.6 cm | 107.4 cm |
| 9 | PortilloChile | 163.8 cm | 144.3 cm |
| 10 | Ski PucónChile | 161.9 cm | 251.3 cm |
| 11 | El ColoradoChile | 145.7 cm | 153.2 cm |
| 12 | Temple BasinNew Zealand | 138 cm | 77.7 cm |
Upcoming bluebird predictions
Predicted clear-sky powder mornings 1–3 days ahead. Track record: 0/207 verified correct (0%).
| Resort | Predicted day | Confidence | Fresh snow |
|---|---|---|---|
| No upcoming bluebird predictions right now. | |||
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 | Météo-France | 71.8 |
| andes | JMA | 52.1 |
| cascades | ICON | 78.6 |
| Rockies | ECMWF | 82 |
| sierra | ECMWF | 72.2 |
| southern-alps | GFS | 36.6 |
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
