Observation Date
1/26/2025
Observer Name
Champion & Talty & Gagne
Region
Salt Lake » Big Cottonwood Canyon » 10420
Location Name or Route
10420
Comments
We examined multiple aspects while climbing up to 10,420'. Visibility was good, and signs of this week's earlier wind event were obvious. Throughout our travels, we found 4-6 inches of low-density new snow sitting atop a variety of snow surfaces, ranging from stout wind board along much of the ridgeline to a firmer crust with small-grain facets above it on solar aspects.
In some areas, the wind drifts seemed shallow and sensitive, while in others, the drifts were hard and supportable, allowing travel far out onto them. There is significant spatial variability in the distribution of the wind slab at the moment.
The most concerning areas are the shallower ones, where small-grain facets are directly beneath the wind slab on the old snow surface. On a northeast aspect at 9,620', we observed a 4F to 1F hard slab sitting atop F-hard small-grain facets. This supportable slab propagated at ECTP12, approximately 20 cm down. This was repeatable.
NE Aspect - 9620' - ECTP12
![](https://utahavalanchecenter.org/sites/default/files/images/staff/Nikki/IMG_8149.jpeg)
Small observed cracking - NE Aspect - 9500'
![](https://utahavalanchecenter.org/sites/default/files/images/staff/Nikki/IMG_3348.jpeg)
Wind texture observed from the top of 10420' looking down canyon
![](https://utahavalanchecenter.org/sites/default/files/images/staff/Nikki/IMG_3353.jpeg)
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates