Southern Swan Range - Widespread Surface Hoar

Location Name: 
Morrell Ridge
Observation date: 
Sunday, December 2, 2018 - 14:30
Is this an Avalanche Observation: 
No
Observation made by: Public

Location

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Quick Observation

Widespread Surface Hoar.  7-8mm V at Ridge tops and 2-3mm in open trees below. 
60-75cm depth. 60cm @ 8000' NE aspect 23* slope. Tair -9.3, Tsurf -8.5, T20 -4.7. ECTN13 down 15cm on 3mm SH and 1mm FC. CT11 on same layer. 
Widespread surface hoar and a faceted snowpack will likely be weaknesses when the next big load gets delivered. 

 

Travel Details
Region: 
Swan Range - South (south of Swan Lake)
Activity: 
Skiing
Snowpack Details
Snowpack and Weather Details: 
Hide Terrain
Elevation of observation: 
Above 6500 ft
Aspect(s) of observation: 
NE
Persistent Weak Layers: 
Surface Hoar
Facets or Faceted Crust
On the surface
Buried
New Snow in the past 24 hours: 
3.00in.
Total Snow Depth: 
60cm
Wind Speed: 
Calm (No air motion)
Air temperature: 
Below Freezing
Sky Cover: 
Overcast (OVC)
Avalanche Details
Avalanche Details: 
Date and Time of Avalanche: 
Tuesday, December 4, 2018 - 10:30