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Wind effects on Stevens Peak

Location Name: Crater Lake Road Region: Carson Pass Area Observation Date & Time: Monday, December 20, 2021 - 10:30
Location: 38.724300, -119.965640 See map: CalTopo	Is this an Avalanche Observation?: No Conditions Alerts: Other Signs of Instability (cracking, whumpfing, collapsing) Other Signs of Instability (cracking, whumpfing, collapsing)›Shooting Cracks Recent Loading Terrain Alerts: Slopes Steeper than 30 degrees

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

We toured up Crater Lake Road today. Evidence of significant wind transport of snow was all around, including reverse skin tracks and large wind drifts in more open areas. Sheltered areas still had unconsolidated snow. The top of Stevens Peak is quite scoured. I stomped on a wind-loaded 35 degree test slope (East aspect at 8,000') and cracks extended 10+ feet. The slab was 1F hard and about 8 inches thick.

Reverse skin tracks in open areas

Cracks propagating through wind slab on test slope

Stevens Peak is quite wind-scoured

Terrain Details

Terrain: elevations:

Below Treeline

Terrain: aspects:

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Wind effects on Stevens Peak

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Wind effects on Stevens Peak

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