Observations on Tamarack Peak

Location Name: 
Tamarack Peak
Mount Rose Area
Date and time of observation: 
Tue, 12/16/2014 - 12:15
Location Map: 
United States
39° 19' 7.5216" N, 119° 55' 18.228" W

Red Flags: 
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain

Observation made by: Forecaster
Snowpit Observations
More detailed information about the snowpack: 

Skier triggered shooting cracks up to 8 ft. in length occurred on some near and above treeline, N-NE-E facing, wind-loaded test slopes in the Tamarack Peak area. Tests on these wind slabs yielded unstable results and indicated that the failure layer was a layer of softer snow below the wind slabs. These slabs were 8 to 12 inches in thickness and on the test slopes they did not extend very far down slope. The wind slabs seemed to have formed in some of the usual places and in some less normal areas. No tests or ski cuts were performed on the larger, steeper, wind-loaded slopes on the far east ridge of Tamarack, but larger cornices and active wind loading indicated that larger wind slabs existed on these slopes.

Snowpit data from the Hourglass showed less wind slab presence and indicated that the facets near the bottom of the snowpack continue to strengthen. Data showed they are even less continuous and more difficult to find than they were about a week ago.

Photo: Shooting crack on a NNE facing wind loaded test slope. This slope was only about 33 degrees in steepness and would not slide after it cracked until it was undercut.

Snowpit: Pit data from near the top of the Hourglass.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

About .5 to .75 inches of new snow today in this area.