Near surface and near crust facets on Waterhouse Peak.

Location Name: 
Waterhouse Peak
Region: 
Luther Pass Area (including Job and Freel)
Date and time of observation: 
Sun, 12/18/2016 - 11:30
Location Map: 
United States
38° 46' 51.0492" N, 119° 57' 29.4948" W
US



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

N and NE aspects traveled today on Waterhouse peak. Poor coverage below 8,300', improving dramatically above 8,500'. Faceting of recent storm snow was observed across all elevations traveled on N-NE aspects between 7,720' and 9,490'. Above 9,000' recent storm snow became deeper (up to 45 cm) and was notably less faceted. At 9,400' the 12/15 rain crust was poorly developed at 5cm thick and P- hard. At lower elevations this crust was substantially thicker and K+ hard.

Faceting was most pronounced between 8,300' and 9,000'. The largest facets appeared to be driven via the melt-layer recrystallization process with 1-2 mm reasonably well developed facets directly on top of the rain crust. In the remainder of the recent storm snow layer, radiation recrystallization was driving near surface facet formation. These near surface facets were smaller and less well developed than those directly above the crust. This was especially the case between 8,300' and 9,000'.

Very little evidence of storm snow settlement seen in the form of cones around trees. Above 8,500', HS easily exceeded 1 m. Good skier supportability was provided by the 12/15 rain crust especially where felt below 8,500'.

Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
Clear
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Air temperature trend: 
Warming
Wind Direction: 
Northeast
More detailed information about the weather: 

Some blowing snow observed off of the top of the N end of the Steven's Peak complex at 10 am, with no more transport observed at noon with NE winds ongoing. 11 am air temp at 8,700' of -12 C.