Observation Date
1/17/2015
Observer Name
Greg Gagne
Region
Salt Lake » Mill Creek Canyon » Porter Fork
Location Name or Route
Porter Fork
Weather
Sky
Clear
Wind Speed
Calm
Weather Comments
Quite warm in the sun.
Snow Characteristics
Snow Surface Conditions
Dense Loose
Wind Crust
Melt-Freeze Crust
Damp
Snow Characteristics Comments

Still finding plenty of soft-settled snow on northerly aspects. Wind has clearly done its thing and has eroded or filled in tracks that were visible a few days before. We were finding 1F/P hard wind slabs, but these were not cracking and not sensitive at all to ski cuts.

Red Flags
Red Flags
Recent Avalanches
Red Flags Comments
Submitted observation about avalanche occurrence in Thaynes Canyon. There is likely a reason why Brett lists "Recent Avalanches" as the first red flag on this form!
Comments

Have been submitting very few observations the past few weeks as there hasn't been much to talk about, and those submitting observations have all been quite good and have told us enough. Today was thinking recent wind drifts and slabs were the primary concern, however they were not sensitive to any stability tests and they have seemingly settled out where we were traveling. The Monday storm settled out quickly, and by Tuesday it was hard to find any sensitivity in the storm snow. By Thursday I was still getting clean shears in the 5 cms layer of storm snow that fell on Sunday night, but density inversions and decomposing fragments are not persistent weak layers. In a few quick pits this morning signs were showing this layer had largely healed.

We did trigger a small slide this morning (reported separately) on a mid-elevation shady slope that failed on a preserved layer of surface hoar and near surface facets and this did surprise me as I thought any weak layers on the snow surface prior to the small Sunday Jan 11 storm had eroded. I do think this is an outlier, and that the significant majority of slopes in the central Wasatch have a Low danger, although I would still give the recent wind drifts (which are very easy to identify) more time to adjust before jumping on them.

I had made a comment to a friend a few days ago that - apart from wet slide concerns - our snowpack was turning into "ski it if it's white", but I'm revisiting that thought, and will keep my guard up on shady mid-elevation slopes.

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