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Observation: Broads Fork

Observation Date
1/15/2025
Observer Name
Champion, Antenucci, Jenson, Conover
Region
Salt Lake » Big Cottonwood Canyon » Broads Fork
Location Name or Route
Broads Fork
Weather
Sky
Clear
Wind Direction
Northwest
Wind Speed
Calm
Weather Comments
Cold and clear day, a beautiful day in the mountains. Did end up in the sun much today.
Snow Characteristics
Snow Surface Conditions
Powder
Dense Loose
Faceted Loose
Snow Characteristics Comments
A more settled snow surface was observed across most aspects. The west-facing and solar aspects were getting significant sun exposure. While we didn’t encounter any true southerly aspects during our travels, the west-facing terrain was in full sun and appeared to be taking a beating as a result. On the polar aspects, the snow surface was actively weakening, with widespread surface hoar forming.
Surface hoar on a NE aspect at 8260'
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
We didn’t observe any signs of instability, such as cracking or collapsing, but the snowpack structure wasn’t particularly impressive either. The surface was weakening and will likely continue to deteriorate during periods of high pressure.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
We headed out to Broads to assess coverage in some of the lower terrain options, like Broads Trees. Unfortunately, we encountered generally low coverage and challenging travel conditions in Broads Trees, so we continued up the drainage toward the Diving Board and Bonkers, where we found better coverage and easier travel.
We did not observe any signs of instability, but the snow surface was weakening. With almost no wind in the drainage, it’s likely the surface hoar will continue to grow until the next period of low pressure.
We dug two pits near 8,200 feet—one on a true east-facing aspect and one on a northeast-facing aspect. The primary and somewhat surprising difference between the two profiles was the snow depth. On the true east-facing aspect, the snowpit depth was 125 cm, whereas the northeast-facing pit had a depth of only 90 cm, along with a more obvious rime layer from the system that passed between Christmas and New Year’s. Beyond that, both snowpits displayed a similar structure, with varying hardness from 4-Finger to 1-Finger slabs sitting atop weak, faceted snow.
Neither snowpit showed propagation, which was surprising given the snowpack structure. Additionally, neither pit indicated any signs of healing within the basal facets - facets were 2-3mm in both pits, not damp, and no signs of rounding.

Snowpit profile from the East facing terrain - 8293'
Snowpit profile from NE aspect at 8260'
Comments
Coverage looking up towards the Diving Board and Bonkers - recent glide avalanches
West facing aspects getting full sun
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates