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Observation: Moab

Observation Date
2/28/2023
Observer Name
Chris Lile
Region
Moab
Location Name or Route
Near Gold Knob
Red Flags
Red Flags
Collapsing
Avalanche Problem #1
Problem
Persistent Weak Layer
Problem #1 Comments
We experienced a widespread sun crust on our tour throughout the day at lower elevations. Started our day at 7700' and our high point was 10500'.
Snow Profile
Aspect
West
Elevation
8,800'
Comments
We were unable to make it to the Geyser Pass TH in a high clearance 4wd truck. Our backup plan was to go ski near Gold Knob. During our tour we travelled on mostly W and SW terrain. Multiple times throughout the day we heard large whumpfs in open areas with little tree cover.
We chose to ski low angle terrain (<30deg) below treeline. The skiing was decent with a few inches of new snow above a widespread sun crust.
Forecaster Note: Typically audible collapses or "whumpfs" are associated with collapsing a weak layer beneath a slab. It is unlikely this was occurring on these aspects/elevations. The whumpfing mentioned in this ob is most likely associated with breaking sun crusts.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates