Avalanche

Sixmile

Rob MillspaughSwan Range
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4

Quick report

Wow, its dismal on the valley bottom:

  • Valley cloud was confined below 4500', above that there's sun for days.
  • Cold, clear nights have weakened the surface of the snowpack.  
  • Found intact surface hoar on shaded aspects at upper elevations. 
  • Surface crusts on southerly aspects had broken down by 11 am.
  • These slopes were wet by 2 pm and a crust was reforming by 4 pm. 
  • Calm wind and no blowing snow.
  • No recent avalanches or signs of instability.

Walking is still the best option below ~5000 feet. 

No obvious signs of instability

Weather

Air Temp
Above freezing
Cloud Cover
few
Wind Loading
none
Recent Snowfall
0
Snow Avail For Transport
small smounts

Emerged from the cloud at 4500'. Calm with occasional light wind from the SW.

Snowpack

Just superficial obs and probing today:

4500' SE aspect:  HS = 30cm, small surface hoar (1mm) and facets (0.5mm), some riming 

5800' SE aspect:  HS = 70cm,  5 cm moist to wet on top of dry facets (0.5mm)

6900' multiple aspects: HS = 110cm, surface hoar (5mm) on top of facets (0.5mm)

 

Avalanche

No recent avalanche activity.