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Observation: Park City Ridgeline

Observation Date
12/30/2023
Observer Name
Graves, Fredbo
Region
Salt Lake » Park City Ridgeline
Location Name or Route
PC Ridgeline
Red Flags
Red Flags
Wind Loading
Cracking
Avalanche Problem #1
Problem
Wind Drifted Snow
Trend
Decreasing Danger
Problem #1 Comments
The shift in wind intensity yesterday definitely affected skiing quality today. While traveling to dig on a wind loaded slope, we noted localized cracking about 10cm deep. We dug a pit on this same slope and did not produce any propagating test results. The faceted grains in the bottom 15cm of the snowpack are moist and rounding.
Snow Profile
Aspect
North
Elevation
9,700'
Comments
A cold front moved in from the SW around noon today, but sadly only produced flat light and no snow. Snow surfaces were variable ranging from surface hoar on sheltered slopes to stiff pockets of wind-drifted snow on high elevation NW through E aspects. The spatial variability on the PC Ridgeline is very apparent right now with even the slightest aspect, slope angle, and elevation change, making finding supportable skiing somewhat tricky. The best, most supportable skiing was found on lower-angle sun and wind-protected slopes. We noted a radiation recrystallization crust right below a layer of surface hoar on a westerly slope at 9700'.
Photo 1: localized cracking on a wind-loaded slope
Photo 2: RR above the crust
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
None
Coordinates