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.

Storm Snow at Prosser Hill

Location Name: Prosser Hill Region: Little Truckee Summit Areas Observation Date & Time: Sunday, December 26, 2021 - 12:00
Location: 39.373480, -120.194218 See map: CalTopo	Is this an Avalanche Observation?: No Conditions Alerts: Recent Loading›Blowing Snow Recent Loading›More Than a Foot of New Snow

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Weather and road conditions limited available options today. At Prosser Hill storm snow was around ~120cm. We dug a test pit on a NE slope to evaluate storm snow and the Dec 22 rain crust. This snow is right side up, low density and showed minimal storm slab attributes. Wind slab development in this fairly sheltered terrain was shallow but winds were gusting into the moderate range and producing wind slabs ~10cm.

Skin track refill in ~30min.

Wind slab development.

Strong winds and copious amounts of snow for transport.

Snowpack Details

Total Snow Depth:

189cm

Persistent Weak Layers:

Not present

Terrain Details

Terrain: elevations:

Below Treeline

Terrain: aspects:

Weather Details

Elevation of Observation:

6000-7000 ft.

Blowing Snow:

Moderate

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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