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.

Persistent Weak Layer on Stevens Peak

Location Name: Stevens Peak Region: Carson Pass Area Observation Date & Time: Saturday, January 25, 2020 - 10:00
Location: 38.734816, -119.972964 See map: CalTopo	Is this an Avalanche Observation?: No Conditions Alerts: Persistent Problem Rapid or Prolonged Warming Rapid or Prolonged Warming›Strong Sunshine Rapid or Prolonged Warming›Warm Temperatures

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

We did an ECT propagation test on a 90cm by 30cm column. The block in the photo sheered at 22 taps (2nd full shoulder tap) (ECTP 22). The sheer line was right at the sugar snow reported in the forecast and was very planar. Around 5cm of faceted sugar snow. Confirms that the January 4 rain crust/sugar layer is very much present and while hard to trigger, would be high consequence.

Snowpit or crown profile photo or graph:

Snowpack Details

Total Snow Depth:

150cm

Persistent Weak Layers:

Buried

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

Weather Details

Elevation of Observation:

8000 - 9000 ft.

Sky Cover:

Clear

Air temperature:

Above Freezing

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Persistent Weak Layer on Stevens Peak

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Persistent Weak Layer on Stevens Peak

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