Mt. Emmons

Location: Crested Butte Area
Date of Observation: 04/04/2016
Name: Zach Guy
Subject: Mt. Emmons
Aspect: North, North East, South East
Elevation: 9,100-12,100 ft

Avalanches: No signs of instability observed except skier triggered pinwheels on ENE aspects NTL and a handful of wet loose that ran sometime in the past three days on various sunbaked slopes, uncertain of their timing.
Weather: Very warm, moderate SW wind, few clouds increased to broken through the day.
Snowpack: Freewater accelerating deeper into the snowpack, with unsupportive wet grains observed on SE NTL and E/ENE BTL this afternoon (Boot pen was knee to waist deep in wet snowpack).
Targeted profiles on suspect persistent slab slopes showed variable results on the March 6th facet layer below a faceting or wetting slab. See photo captions below for profile/test results.

Coon Basin, NE aspect Near treeline. 35 cm, 4F+ slab over thin crust with rounding facets above and below. ECTN17 on 1.5mm rounding facets below the crust.

Coon Basin, NE aspect Near treeline. 35 cm, 4F+ slab over thin crust with rounding facets above and below. ECTN17 on 1.5mm rounding facets below the crust.

Climax Chutes. NNE aspect near treeline. 42 cm, 4F- faceting slab over 1.0 mm, 4F- rounding facets. ECTN 28 on this layer.

Climax Chutes. NNE aspect near treeline. 42 cm, 4F faceting slab over 1.0 mm, 4F- rounding facets. ECTN 28 on this layer.

Crown profile of skier triggered avalanche last week in Climax Chutes. ENE aspect NTL. 38 cm wet (top 15cm) to moist slab over 1.5mm F+, dry rounding facets, capped by a thin crust in places. ECTP19, SC

Crown profile of skier triggered avalanche last week in Climax Chutes. ENE aspect NTL. 38 cm wet (top 15cm) to moist slab over 1.5mm F+, dry rounding facets, capped by a thin crust in places. ECTP19, SC.  Water pooling along upper dust/crust layer, 15 cm deep.

Looking east across the crown of the skier triggered slide in Climax Chutes last week.

Looking east across the crown of the skier triggered slide in Climax Chutes last week.