Rubicon observation

Location Name: Rubicon Peak Region: West Shore Area Observation Date & Time: Sunday, December 4, 2022 - 15:30
Location: 38.989940, -120.133768 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)›Collapsing / whumpfing noises Recent Loading

Observation made by: Guide at Tahoe Mountain School

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Whumpfing and collapsing observed while touring on Rubicon from trail head to 7,500 ft Where the whoomphing began to subside. HS at 8,600ft was 100 cm and using the probe the weak layer was detected at around 70-80 cm depth. Snow had high density. Near tree line had good coverage and close to TH coverage was thin with rocks and stumps visible.

Snowpack Details

Total Snow Depth:

110cm

Persistent Weak Layers:

Buried

Weather Details

Elevation of Observation:

7000 - 8000 ft.

Blowing Snow:

Light

Wind Direction:

Southwest

Wind Speed:

Moderate

Sky Cover:

Overcast - Cloudy - 8/8 covered

Highest Precipitation Rate:

Light Snowfall (S1 (S-1 = 1 cm /~.5 in per hour)

Precipitation:

Snow

Air temperature:

Below Freezing

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Rubicon observation

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Rubicon observation

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