building wind slabs above Sardine Can Wall

Location Name: 
NTL above Sardine Can Wall
Region: 
BWRA
Date and time of observation: 
Thu, 02/22/2018 - 13:00
Location Map: 


Red Flags: 
Recent loading by new snow, wind, or rain

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

Toured up above Sardine Meadows to first forested bench and to ridge line to check progress of incoming storm.  Did not find much new snow,  ranged from a few cm's at 8000' to 2-3" at upper treeline.  Found wind affected surfaces in small openings in the trees starting at about 9,200'.  At this elevation on a N/NE test slope was able to get minor cracking in wind deposits as well as easy hand shears down 25cm on facets above a crust.  Also noted easy, clean shears about 10cm down on a density break within new/wind deposited snow.  A couple hundred feet higher on a more exposed, wind loaded test slope, specific areas had a similar snowpack structure with fresh wind slabs quite a bit thicker on NE lee aspect (up to ~10").  Here, with the weight of a skier able to get small peices of fresh wind slabs to crack and a few very small failures.  Expect these slabs to continue building with more snow coming, plenty of snow availbale for transport, and steady SW winds.

Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Cooling
Wind Direction: 
Southwest
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Obscured skies all day with lots of blowing snow from moderate SW winds.  Light snow showers on and off all day, mostly S1 pushing almost into S2 mid afternoon while we were leaving.