Observation: Avalanche Professional

All Observations

Basic Information

Observation Details

Observation Date:
February 5, 2023
Submitted:
February 6, 2023
Observer:
Avalanche Professional - Guided Exposure- Jere Burrell
Zone or Region:
West North
Location:
Bagley Basin (NE-E-SE)

Signs of Unstable Snow

Recent Avalanches? 
None Observed
Cracking? 
None Experienced
Collapsing? 
Isolated

Media/Attachments

https://www.instagram.com/reel/CoVeMRhDl6P/?utm_source=ig_web_copy_link

Advanced Information

Weather Summary

Cloud Cover:
Overcast

Weather Observations: Sun tried to peak out through thin sections but mostly overcast to obscured as fog rolled in and out. Temps were very comfortable early with skinning in a soft shell almost too warm. Very light to calm wind. No snow transport observed and potential seemed limited by moist surface conditions.

Avalanche Observations: No cracking, fracture initiation, or propagation observed around Bagley and no releases in steeper 35+ degree terrain on NE-E-SE aspects NTL/BTL. Roller balls from steep turns but no loose moist (dry+, moist-) releases.

Snowpack Observations

Snowpack Observations: NTL @5,300' NE aspect. We experienced an audible whumpf and investigated from a reasonably safe location. The weak layer/ interface resulted in a CTM (11) SP (Sudden Planar) down 35cm, ECTP down 35cm. The interface appeared to be a thin crust facet combo (MFcr/FC). No graupel observed at this interface. Q1 failure occurred above this crust with a Q2 RP (Resistant Planar) result below the crust. MFcr/FC unknown date, February 3rd?

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