Pro Field Report
Basic Information
Observation Details
Observation Date:
December 12, 2019 - December 12, 2019Submitted:
December 12, 2019Observer:
SAC - ChagoZone or Region:
Mores CreekLocation:
Pilot Peak - Summit Creek Ridge NE aspects, 7600 feetSigns of Unstable Snow
Recent Avalanches?
None ObservedCracking?
WidespreadCollapsing?
WidespreadSnow Stability
Stability Rating:
PoorConfidence in Rating:
ModerateStability Trend:
WorseningBottom Line
The surface hoar layer responsible for widespread instability at Mores Creek Summit is now buried at 60 cms. A respectable persistent slab that is capable of D2 releases.
Media/Attachments
Advanced Information
Weather Summary
Cloud Cover:
OvercastTemperature:
-2 Deg-CWind:
Light , SW
AM - 1 cm/hour of snow precipitation, PM - Overcast with tranquil weather.
HN24W (SWE): 33 mm
HST: 35 cm
BS: None
24 hours Temp Change: -6 -> -2 DEG C
Avalanche Observations
Surprised at the lack of natural avalanche releases.
While skiing a slope, I fracture the whole slope, it did not slide due to its shallow angle (29 degrees).
Snowpack Observations
0-35 cm, Fist, New snow
35-36 cm, Pencil, melt crust layer [Shovel Tilt test - Moderate Results]
36-60 cm, Fist to 4-Finger, Fragmented to Rounds
60-61 cm, Fist, Surface Hoar [CT1Q1(SC/SP), ECTP14, CPST20/100(End)
61-70 cm, 4 F, Rounds
70-85 cm, Pencil hard MF crust
Avalanche Problems
| Problem | Location | Distribution | Sensitivity | Size | Comments |
|---|---|---|---|---|---|
Persistent Slab
|
|
Layer Depth/Date: 60 cm Comments: 60 cm slab. Surface hoar formed 2019121/2019121. |
|||
Storm Slab
|
|
Layer Depth/Date: 35 cm Comments: Precipitation crystals in top of a thin crust. 35 cm slab thickness. |
Terrain Use
Traveled and skied terrain with slope angles at or below 30 degrees. Avoided zones with steep slopes above us.