Profile Pit Motorized Avalanche 1

Location Name: 
Twin Lake
Region: 
Carson Pass Area
Observation Date & Time: 
Sunday, February 9, 2020 - 12:15
Location: 
38.600040, -119.943840
See map: CalTopo
Is this an Avalanche Observation?: 
No


Conditions Alerts:

  • Recent Loading
  • Recent Loading›Blowing Snow

Terrain Alerts: 
Terrain Matches the Advisory
Observation made by: Public

Tabs

Observation
Description of Snow, Weather, and Avalanche Conditions: 

Several CT tests initiated exact same test results. Present layer of buried SH 30 cm down from surface of snow pack, however, it was stable and not very reactive. The layer finally moved at 30 firm taps. Terrain and avalanche activity remained same as forecasted. Increasing winds swirling throughout the day made visibily extremely poor at times. Temps remained below freezing all day. Evidence of newly forming cornices visible from Blue Lake Road on NE facing cliffs present due to recent wind loading Saturday night out of the North and West. Small cracking noticed from snomobile tracks but not enough to create disturbance in upper layers.

Snowpit or crown profile photo or graph: 
Hide Snowpack Details
Total Snow Depth: 
185cm
Persistent Weak Layers: 
Buried
Hide Terrain Details
Terrain: elevations: 
Near Treeline
Terrain: aspects: 
SE
Hide Weather Details
Elevation of Observation: 
8000 - 9000 ft.
Blowing Snow: 
Moderate
Wind Direction: 
Northeast
Wind Speed: 
Strong
Sky Cover: 
Overcast - Cloudy - 8/8 covered
Highest Precipitation Rate: 
Very Light Snowfall (S-1 = up to .5cm /~.25 in per hour)
Precipitation: 
Snow
Air temperature: 
Below Freezing
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