Obs from Tamarack Pk

Location Name: 
Tamarack Peak
Region: 
Mount Rose Area
Date and time of observation: 
Mon, 03/14/2011 - 12:15
Location Map: 
United States
39° 18' 55.9476" N, 119° 55' 2.1864" W
See map: Google Maps
US


Red Flags: 
Recent loading by new snow, wind, or rain
Rapid warming
Observation made by: Forecaster
Snowpit Observations
More detailed information about the snowpack: 

No significant signs of storm snow instability during the morning hours on N-NE-E aspects. Additional testpits at 39.316769, -119.919376 and 39.317532, -119.909720 produced very similar profiles and test results to Hourglass pit graphed above.

Around 11:30am signs of warming instability became apparent on E-SE aspects.

Photo 1: Intentional ski cut of test slope produced slab failure on the density/upper weak layer noted in all pit profiles during the morning. Location at noted lat/long on Google map link above. 9,600', E aspect, 42 degree convexity.

Photo 2: Natural and human triggered roller balls on Fireplug (39.324637, -119.903841). Photo taken at 12:30pm.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: 

Cloud cover 7/8 with fog like conditions. Solar radiation noticeable on E-SE-S aspects at noon.