Avalanche 1 Course Smuggler's/Minaret Vista Area

Submission Info
Saturday, December 30, 2017 - 11:45am
Red Flags: 
37° 39' 7.596" N, 119° 3' 11.988" W
Snowpit Observations
More detailed information about the snowpack: 

Sierra Mountain Guides Avy 1 course toured up towards Minaret Summit NW of the ski area making field observations. Most groups observed F hard facet layers under slightly harder (4F to 1F) layers in the mid to upper snowpack. These layers could become a problem as temperatures cool and new snow falls this week. Test results were varied and inconclusive. Extended column tests did not show any propensity for propagation. Snow surfaces varied greatly with sun exposure. Sunny aspects have developed melt-freeze crusts early in the day and moist surface facets during mid-day. Shady slopes still have well developed surface facets. Snow depth ranged from 30-120cm depending on previous wind loading and exposure to sun/melting. No other signs of instability were noted. See attached profile from just off the Minaret Rd. at 9075'. (Of note, the crusts from 11/27 and 12/03 storms seem to be breaking down/faceting in this area.)

Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 
-- placeholder --

ESAC receives significant financial support from ...