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Observation: Alpine Loop

Observation Date
12/19/2022
Observer Name
Hardesty
Region
Provo » Provo Canyon » North Fork Provo R. » Alpine Loop
Location Name or Route
Timp Divide
Weather
Sky
Clear
Wind Direction
Northwest
Wind Speed
Calm
Weather Comments
Cold
Snow Characteristics
New Snow Depth
10"
New Snow Density
Low
Snow Surface Conditions
Powder
Faceted Loose
Melt-Freeze Crust
Damp
Snow Characteristics Comments
Idle weather does the devil's work. Surface hoar and RR facets noted along the snow surfaces. Surface faceting also taking place with the clear and cold.
Red Flags
Red Flags
Collapsing
Poor Snowpack Structure
Red Flags Comments
Widespread localized collapsing noted in untraveled/pristine snow below 8000'. Raven expressed his displeasure with the cacophonous collapsing and flew elsewhere. Surface hoar and facets the culprit noted 40cm down.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
Avalanches noted in UFO 1 and 2 (northeast at 9800') (photo below). Size 1 and 2, running on the November PWL.
Collapsing with every step in the low elevations up to 8000'. ECTPV down 40cm on SH/facets. Exceedingly weak facets (see photo).
In the mid-elevations, ECTX and ECTX on Nov facets - 4F, 4F+ facets. See snowpilot. Having said that, the Provo mountains experienced a good avalanche cycle Nov 12/13. (photo UFO 2)
Snow Profile
Aspect
Northeast
Elevation
8,800'
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates