Observation Date
11/27/2016
Observer Name
Mark Staples
Region
Salt Lake » Big Cottonwood Canyon » Guardsman Pass area
Location Name or Route
Above Guardsman Pass
Weather
Sky
Obscured
Precipitation
Heavy Snowfall
Weather Comments
The sun was trying to appear before noon, but snow was falling pretty intensely by about 1 p.m.
Red Flags
Red Flags
Heavy Snowfall
Red Flags Comments
Overall the snowpack looks pretty good for this time of year. However, the potential loading that is coming may be more than this fledgling snowpack can handle.
Snow Profile
Aspect
East
Elevation
9,800'
Slope Angle
27°
Comments

Went for a quick look at the snow near Guardsman Pass. See attached snow profile. This was more of an east facing location but it represented a north facing slope due to a nearby stand of trees that shade it from E and S sun exposure.

There was a very thin layer of depth hoar crystals at the ground but I don't think this will be a problem in this location. Very small faceted crystals at about 10 cm (4 inches) above the ground were the weakest layer. ECT's did not propagate at this spot but would propagate in any location that had a slightly harder layer in the snowpack. In the photo below there were two crusts that seemed to allow the ECT to propagate. Other locations had other types of hard layers.

It seems like elevations below 9800 feet may be able to handle the weight of new snow especially on S aspects. Higher elevations with some old wind slabs, old facets, and the load of new snow from today and tomorrow should produce some decent persistent slab avalanches.

Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Considerable
Coordinates