Observation: Toll Canyon

Observation Date
2/7/2017
Observer Name
Evelyn
Region
Salt Lake » Parleys Canyon » Toll Canyon
Location Name or Route
Toll Canyon
Weather
Sky
Overcast
Wind Direction
Southwest
Wind Speed
Light
Weather Comments
Traveled below the wind zone, so mostly light to calm winds. But could hear the roaring of the wind across the higher ridge lines.
Snow Characteristics
New Snow Depth
1"
New Snow Density
High
Snow Surface Conditions
Damp
Snow Characteristics Comments
Not much new snow at this low elevation - probably rained at times here. Maybe a damp inch on northerly facing slopes, sitting on several inches of moist or damp snow. More like a trace on crusted slopes - seems to have melted into the old snow surface and crusts. Full on mashed potato turning on northerly...
Comments
Headed out to look at the surface hoar layer, and see if the warm temperatures or rain had reached the layer and changed it in any way. Below pit was on a northerly facing slope, at 7,600' - the same surface hoar layer, still obvious and still weak. And an ECT (Extended Column Test) had a low score of 11, with full propagation. I looked it up, and it's the same test result I got a week ago in this area. So no strengthening from the last time I was in the area. I would assume this weak surface hoar layer is even more likely to not have strengthened at the higher elevations, too.... Bottom line: could still be triggered by a person, and will probably become more active with loading. But with more warm temperatures in the forecast, there is still a possibility it could warm, especially at the lower elevations.
Obvious large crystals of surface hoar taken from the buried layer, though it was melting fast on the shovel.
In general, at these lower elevations below about 7500', it's a wet, punchy snow pack that needs some cold temperatures. Large roller balls easy to initiate on northerly facing slopes, wet sluffs would be possible, mostly on steep, shady slopes.
Today's Observed Danger Rating
None
Tomorrows Estimated Danger Rating
None