Grand Teton Ski Descent

This is a wind-loading event, not a snowpack structure problem. The Bridger-Teton center has Considerable danger across all elevations but crucially shows no identified avalanche problems in their bulletin — meaning the underlying snowpack is stable, but fresh wind slabs are forming rapidly on leeward aspects. With sustained 40+ mph WSW winds through Friday night and gusts to 51 mph Saturday, expect significant loading on northeast through southeast aspects above treeline. The wind is doing the work of a storm cycle without the new snow.

Snowpack depth looks reasonable with Long Lake SNOTEL at 98 inches, though the falling trend at Annie Springs suggests either settlement or wind transport. The lack of specific avalanche problems in the bulletin is encouraging — no persistent slabs, storm slabs, or cornices flagged. This suggests you're dealing with fresh wind slabs only, which are predictable and avoidable with good terrain selection.

Stick to wind-scoured west and southwest aspects or sheltered terrain below treeline where wind transport is minimal. Avoid any slope that looks loaded or feels hollow underfoot. The constant blowing snow will make visibility challenging — expect whiteout conditions on exposed ridges and plan navigation accordingly. Temperatures staying in the mid-20s means no wet avalanche concerns, but also no solar warming to help with visibility.

Timing matters: Saturday shows the strongest winds (up to 51 mph) with heavy snow, making it the worst day for exposed terrain. Thursday and Friday offer slightly better windows with 'only' 36-40 mph winds. Start early and be prepared to retreat to sheltered aspects or below treeline if wind transport becomes obviously active. The Grand Teton's massive vertical relief will amplify these winds significantly above the valley floor forecasts.