25-Jan Observation and snow profile from Leavitt Lake Area

Location Name: 
SW above Leavitt Lake
Region: 
BWRA
Date and time of observation: 
Wed, 01/25/2017 - 13:00
Location Map: 



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

Several of us rode up into the Leavitt Lake area yesterday and found excellent riding conditions.  Hwy 108 has been groomed up to the junction but is still unpacked past there.  Leavitt Lake Road has also been packed down and groomed.  We saw signs of older avalanche activity on numerous steep slopes which had been covered up by more recent snowfall, including a cornice collapse above lower Leavitt Lake Road (pic 2).  Since the weekend, the snowpack has consolidated and strengthened quite a bit, with no recent signs of avalanche activity or instability on any slopes we rode.  I dug a pit at 9800 ft on the NE facing headwall just above and to the SW of Leavitt Lake and found little in the way of instability and an overall strong snowpack.  The total snowdepth at this location was an amazing 420 cm, or about 13 ft!  Only minor concern was a layer of softer snow overlaid by a windslab about a meter below the surface, which fractured in my compression test (CT24 Q2) but did not propogate in my extended collumn test.  What this shows is there still may be areas with wind slabs on top of softer layers of snow below the surface which haven't yet completely bonded to eachother, but there is not enough instability between these layers to propogate a fracture. 

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Cooling
Wind Direction: 
Southwest
Accumulation rate: 
None
More detailed information about the weather: 

Periods of sun and clouds with cold temps and moderate winds draining down the gully SW of the lake.