Avalanche

East Missions

Rob Millspaugh
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Observation photo 1Observation photo 2Observation photo 3

Quick report

I hypothesized that I could find a thinner and weaker snowpack on the lee side of the Missions.  I was mostly wrong. 

  • No discernable avalanche activity since the mid-November atmostpheric river.
  • No obvious signs of instability.
  • Encountered some thin (2 to 6 inch) hard slabs (1F) in the most wind-affected areas.  They were not reactive. 
  • I found a similarly deep (5 ft) and right-side-up snowpack to what has been documented in the advisory area.  
  • A large column test produced a non-propagating result with hard force, 16 inches below the surface.
  • Obseved some faceting in the above mentioned layer. 
  • Surface snow has not yet faceted at this location. 
  • No buried surface hoar.
No signs of instability

Weather

Air Temp
32
Cloud Cover
broken
Wind Loading
previous
Snow Avail For Transport
small smounts

Dead still except for a couple stray gusts to moderate from the SW above 6500'.

Snowpack

Test pit at 7200' NE aspect: 

  • HS=153 cm
  •  ECTN29 down 40 cm on faceting rounds above AR crust.
  • Below the crust, snowpack transitions from dry to moist with increasing depth.
  • Bottom 10 cm are wet.
  • See attached pit profile.

Hasty pit at 6200' NE aspect: 

  • HS = 65 cm
  • Bottom 30 cm are wet. 

Avalanche

No recent avalanches