AVALANCHE WARNING!! Tap for info

Observation: Park City Ridgeline

Observation Date
12/16/2024
Observer Name
Dave Leydet and Nathan Zacharias
Region
Salt Lake » Park City Ridgeline
Location Name or Route
BCC/Park City Ridgeline
Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Avalanche Problem #2
Problem
Wind Drifted Snow
Snow Profile
Aspect
West
Elevation
9,300'
Comments
We toured in the upper BCC / Park City ridgeline today. Coverage in the lower and middle elevation (below 8,500') is still very thin. Established skin tracks in shaded areas seemed to fair well, but there still are exposed rocks, shrubs, and trees that pose a hazard to skier/splitboarders. The weather was overcast (BKN), with periods of very light (S-1) snowfall. Winds were inconsistent - primarily easterly - with gusts in the 20 mph range.
Northerly facing aspects above 8,500' held a decent amount of snow for travel. We dug a test pit at 9,300' on a west facing aspect. The height of snow (HS) was 73 cm with increasing hardness down to approximately 25 cm. A PWL with sugary facets of fist (F) hardness extended from 25cm to the ground. Our extended column test result was ECTN18 (crack initiated but no propagation) at 25 cm. This crack initiated along the interface between the PWL and the stronger snow above it. We expected the crack to initiate and propagate; however, our ECT may inaccurate due to shrubs and rocks that created an uneven bed surface at the bottom of the test pit. Additionally, we did NOT find a buried surface hoar layer at this particular location, aspect, elevation band.
There were obvious signs of wind loading and wind slab along exposed ridgelines at upper elevations. Some aspects are completely stripped of snow (primarily southerly ones) while others have deeper snowpack due to wind deposited snow.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates