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Snowpack Analysis at Thunder Mountain

Location Name: Thunder Mountain Region: Carson Pass Area Observation Date & Time: Wednesday, November 10, 2021 - 08:20
Location: 38.677726, -120.081024 See map: CalTopo	Is this an Avalanche Observation?: No

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Dug pit and performed single column tap test at Thunder Mountain. The top rain crust failed at 12 taps. The crust at 23cm failed at 16 taps. The lower failure was planar, but the layer was not cohesive across the column. Snow below the failure was sugar. If we were gonna get more snow in the near future then these layers would likely become a concern.

HS 75 cm
Pencil to 70 cm
Fist to 55 cm
4 finger from 55 - 52 cm
Fist to finger gradient from 52 cm to ground

Snowpit or crown profile photo or graph:

Snowpack Details

Total Snow Depth:

75cm

Persistent Weak Layers:

Buried

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

Weather Details

Elevation of Observation:

8000 - 9000 ft.

Blowing Snow:

None

Wind Direction:

Southwest

Wind Speed:

Calm

Sky Cover:

Overcast - Cloudy - 8/8 covered

Highest Precipitation Rate:

Very Light Snowfall (S-1 = up to .5cm /~.25 in per hour)

Precipitation:

None

Air temperature:

Above Freezing

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Snowpack Analysis at Thunder Mountain

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Snowpack Analysis at Thunder Mountain

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