Forecast accuracy

Every published snow number is stored, then scored against the observation that followed. A resort starts on the all-mountain fit and slides onto its own history as days accumulate.

All resorts, by lead time

LeadCorrectionDays

0d×0.81 · 19% low240

1d×0.85 · 15% low245

2d×1.21 · 21% high231

Resorts with their own history

Resort1d2d3dDays

Marmot Basin1.011.07—142 Castle Mountain1.191.25—125 Sunshine Village0.901.30—116 Big White1.401.40—103 Loveland0.861.27—100 Arapahoe Basin0.851.28—93 Lake Louise0.700.86—90 Alyeska0.911.29—84 Mt. Norquay0.700.95—84 Sugar Bowl1.091.29—74 Palisades Tahoe1.061.31—73 Winter Park0.971.40—73 Eldora0.981.40—72 Timberline0.951.18—72 Le Massif de Charlevoix0.931.27—71 Mt. Baker1.011.29—71 Sierra-at-Tahoe1.141.30—71 Big Sky0.791.24—70 Blue Mountain1.151.40—70 Brian Head0.991.15—70 Crested Butte0.781.18—70 Mont Tremblant1.231.17—70 Panorama0.791.04—70 Red Lodge Mountain0.891.40—70 Copper Mountain0.891.35—69 Mont-Sainte-Anne0.941.23—69 Mt. Hood Meadows0.981.23—69 Alta0.781.11—68 Kirkwood1.011.22—68 Lutsen Mountains0.901.27—68 Mt. Bachelor0.891.21—68 Powder Mountain0.801.10—68 Stevens Pass1.081.34—68 Bridger Bowl0.851.14—67 Brundage0.941.23—67 Crystal Mountain1.001.34—67 Grand Targhee0.801.17—67 Mammoth Mountain0.941.34—67 Snowbird0.801.11—67 Solitude0.821.13—67

Refit Aug 19, 2026.