Observation: Argenta

Observation Date
3/4/2019
Observer Name
T Diegel
Region
Salt Lake » Big Cottonwood Canyon » Mill D South » Kessler » Argenta
Location Name or Route
Argenta to Mineral
Weather
Sky
Scattered
Weather Comments
pretty benign weather, a bit of sun/warmth, which tho not that welcome, is expected now that it's March
Snow Characteristics
New Snow Depth
8"
New Snow Density
Medium
Snow Surface Conditions
Powder
Snow Characteristics Comments
on non-sun affected aspects the snow stayed pretty dry, and there was clearly some opportunity for dry loose sluffs that ran predictably, but were surprisingly fast (ie we pulled one out without really knowing it and it raced down). We didn't get onto s. facing at all to test the possibility of what I saw yesterday where (at a lower elevation line that 10 miles away) we got a wet sluff that - when concentrated into a gully -looked remarkably avalanche-like, and was worthy of traversing turns to avoid.
Snow Profile
Aspect
North
Elevation
9,800'
Slope Angle
36°
Comments
I had a little time to kill so I dug a hole to see if my impression that the deeper snowpack is fairly bomber was accurate. I dug down about 4' and tried and ECT with no results. I was able to pry out blocks on two layers: one about 18" down and another about 28" down, but it took work and the shears were not clean. Below that I could barely get a shovel into the snow. I'd do a fancy profile but I don't trust my memory or my computer skills to make an accurate one. But generally what I saw validated my confidence that even high, possibly windloaded terrain (top of lower Mineral, leeward side) was pretty rock solid, and the zillions of tracks everywhere indicated that everyone else felt the same and had tested the theory.
The feathery snow that fell over the last couple of days could potentially be a bad layer, but if the storm comes in as forecasted it seems the wind and the high density will crush it down pretty effectively.
I suspect that with the approaching storm there won't be much sun/heating tomorrow (Tue) so wet sluffs won't be an issue, and even the dry sluffs on north facing will probably dissipate as a night of colder temps creates better bonding? (or something....seems like sluffs tend to dissipate the farther out from a storm you are utnil they then start to increase as they get really old and sugary).
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Low