Observation Date
2/22/2019
Observer Name
Greg Gagne and Erme Catino
Region
Salt Lake » Big Cottonwood Canyon » Days Fork
Location Name or Route
Days Fork
Comments
Really no specific avalanche problems identified today, and overall Low hazard. Top meter+ of the snowpack is strong, and really can't identify faceted layers in mid-pack. Paid attention to recent wind-loading, specifically Thursday's easterly winds. Above about 9400' we did find pockets of 4-8 cm slabs underneath the storm snow from overnight, but they were unresponsive to stability tests. Overall Low hazard, but a few things to keep in mind for Saturday:
On slopes approaching 40 degrees and steeper, the new snow is sluffing easily. We ski cut a very steep slope that produced a sluff that ran 250' vertical. I do think these are quite "manageable", but consider the consequences of being in steep terrain where getting caught in a sluff could take you into trees or over a cliff band.
On a steep slope (~45 degrees) my partner was able to get a buried wind slab to propagate a short distance (~5') after I had already skied the line, including a few ski cuts along the way.
I think these are issues on steep terrain (approaching 40 degrees) that is generally northerly facing above 9500'. It may even warrant a Moderate hazard in that very specific terrain, but overall most terrain has a Low hazard.
For Saturday the issues will be (1) possible warming on solar aspects, and (2) new wind drifts on leeward aspects from a bump in wind speeds from northwest winds. These issues will be at the snow surface and should be easily identified.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate