Snowpack Observations from Powderhouse

Location Name: 
Powderhouse
Region: 
Luther Pass Area (including Job and Freel)
Date and time of observation: 
Sun, 04/15/2012 - 13:30
Location Map: 
United States
38° 47' 1.248" N, 119° 58' 16.788" W
See map: Google Maps
US


Red Flags: 
Rapid warming
Observation made by: Professional Observer
Snowpit Observations
More detailed information about the snowpack: 

Snow surface melt freeze crusts have formed on all aspects, north aspects have a very thin crust up to around 8500'.  Good freeze with mainly clear skis overnight.  A very thin layer of graupel, up to 3mm in size, fell last evening.  Surface hoar was observed above 9000', 3mm in size.  Storm snow instabilities showing some strengthing with ECT's and PST's showing propagation not likely.  Observations from N/NE aspects, solar aspects were not observed. 

Photos:  Several old slab avalanches thought to be from Friday.  Skier/rider triggered, N/NE aspect, 35-40 degrees.  Crowns up to 2' deep.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
Clear
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
North
Accumulation rate: 
More detailed information about the weather: