The last avalanche forecast for the 2023-2024 season will post on April 21st. Thank you to all who contributed to the avalanche center this season through observations, volunteer time, and/or financial contributions.

Judah snowpack obs

Location Name: judah billboards Region: Donner Summit Area Observation Date & Time: Saturday, December 21, 2019 - 02:00
Location: 39.307036, -120.315351 See map: CalTopo	Is this an Avalanche Observation?: No Conditions Alerts: Rapid or Prolonged Warming›Warm Temperatures Recent Loading›Blowing Snow

Observation made by: Educator at Alpine Skills International (ASI)

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Targeted wind slabs on notherly facing slopes. We found multiple wind slabs above the 12/13 raincrust (35mm down) while digging multiple pits in the same location (NE of the Judah radar elevation 7800ft). We found both 4F and 1F wind slabs above the raincrust. Winds in the area were local and coming from all directions. Hand pits dug under Cornice Bowl - revealed 18cm 1F wind slabs with 4F soft snow underneathe with active windloading.

Skiing - found few good turns in settled snow >7500ft on shaded, north facing aspects.

Snowpit or crown profile photo or graph:

Snowpack Details

Total Snow Depth:

150cm

Persistent Weak Layers:

Not observed

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

Weather Details

Elevation of Observation:

7000 - 8000 ft.

Blowing Snow:

Moderate

Wind Direction:

Southeast

Wind Speed:

Moderate

Sky Cover:

Overcast - Cloudy - 8/8 covered

Precipitation:

None

Air temperature:

Above Freezing

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Judah snowpack obs

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Judah snowpack obs

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