Observation: Mill Hollow

Observation Date
12/4/2012
Observer Name
Craig Gordon/Ted Scroggin
Region
Uintas
Location Name or Route
Mill Hollow to Currant Creek
Weather
Sky
Overcast
Wind Direction
Southwest
Wind Speed
Light
Weather Comments
Weather not affecting snow stability
Snow Characteristics
Snow Surface Conditions
Powder
Dense Loose
Snow Characteristics Comments
Good creamy settled powder on wind sheltered slopes. Wind buff and variable conditions exist at upper elevations
Red Flags
Red Flags
Wind Loading
Cracking
Red Flags Comments
Recent wind loading has formed slabs of various depth and strength. Some cracking on steep, wind loaded north facing slopes was observed, but the slab is generally four finger in nature and isn't well connected.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
A few wind slabs can be found if you really hunt around for them, but they seem lifeless and difficult to trigger.
Comments
This snowpit represents sheltered north facing terrain where the snowpack is pretty well behaved at the moment. We performed an Extended Column Test and got the new snow to fail on the NSF layer with four taps from the wrist... ECTP 4 Q1. While conditions seems rather benign at the moment and shallow soft slab avalanches are very manageable, we shouldn't take or eyes off the buried near surface facets, especially with a change in the weather pattern slated for later in the week.
Winds were channeled upslope and drifting occurred in unusual locations, creating a wavy gravy texture.