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Observation: Park City Ridgeline

Observation Date
11/27/2024
Observer Name
Talty, Larson
Region
Salt Lake » Park City Ridgeline
Location Name or Route
Park City Ridgeline
Weather
Sky
Broken
Wind Direction
West
Wind Speed
Calm
Weather Comments
Broken skies created mostly good visibility with the occasional "socked-in" conditions. Calm W winds were not moving snow around.
Snow Characteristics
New Snow Depth
12"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Consistent 12" of new snow along the Park City Ridgeline. By the afternoon, South aspects were damp from the intermittent sunshine, and I expect a melt-freeze crust on southerly snow surfaces tomorrow morning.
Red Flags
Red Flags
Cracking
Collapsing
Poor Snowpack Structure
Red Flags Comments
Many collapses on NW-N aspects, poor structure exists on these slopes.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Increasing Danger
Problem #1 Comments
The new snow from yesterday did not seem to tip the scales along the PC Ridgeline, however, poor structure exists on slopes holding old snow.
Avalanche Problem #2
Problem
New Snow
Trend
Decreasing Danger
Problem #2 Comments
The new snow seemed to be bonding well to the old snow surfaces in the area we traveled.
Snow Profile
Aspect
North
Elevation
9,900'
Slope Angle
15°
Comments
Travel today was along the PC Ridgeline from Guardsmans Gate > Scott's Hill > Antennas > South Monitor on S-W-N-NE aspects. Objective was to see how our poor structure handled the recent load and to observe how the new snow is bonding to the old snow surfaces. Visibility was quite good throughout the day despite intermittent low clouds rolling through, and we did not observe any recent avalanches. New snow seemed to be bonding well to the old snow surfaces. We observed many collapses on NW and N aspects. We dug a pit next to a booming collapse on a North slope at 9900', at the top of Katie's, and got full propagation in the old snow (ECTP-12 51cm beneath the surface).
While the recent load did not seem to tip the scales of our PWL problem, we stayed away from steep W-N-E aspects and found great riding elsewhere. With a dearth of snowfall in the forecast, I'll be paying attention to the upper snowpack in regards to slab development (hardness and connectivity) or weakening snow.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates