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Observation: Broads Fork

Observation Date
2/3/2023
Observer Name
Grainger, Olafsen
Region
Salt Lake » Big Cottonwood Canyon » Broads Fork
Location Name or Route
Broads Fork
Weather
Sky
Scattered
Wind Speed
Moderate
Weather Comments
Consistent ridgetop winds throughout day, predominantly SW but a lot of drainage influence. Limited snow to transport but many slopes just under ridgeline saw scouring/loading.
Snow Characteristics
Snow Surface Conditions
Powder
Faceted Loose
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments
While the current snowpack has very few instabilities of concern, the snow surface throughout the weekend are important to pay attention to as Sunday night's precipitation approaches,
With inversion, sunny days and cold nights surface grains are weakened. Many are in the form of Near-Surface Facets (NSF), some of these as south-facing Radiation-Recrystalization (RR) grains on top of melt-freeze crusts and Surface Hoar (SH) in wind-protected areas (Pic 1).
These weak surface grains may all be in play in respective areas once Sunday's snow caps them.
Today's travel in Broads, Lisa Falls and Stairs showed no new avalanche activity but did have examples of recent wind-affected storm slabs (Pics 2 &3) as well as the building wind-slab in alpine terrain (Pic 4). I anticipate wind slabs continuing to build in the alpine through this evening, creating the possibility for isolated human-triggers in the coming days.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Moderate
Coordinates