Avalanche

Sixmile

Rob MillspaughSwan Range
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Quick report

Cracking
specific

Some mechanical issues shortened our day and confined us to mostly windward and solar aspects. No matter,  we found exceptional riding on low angle and wind sheltered terrain.

  •  4-6 inches of recent snow with little to no snowfall throughout the day
  • We saw many signs of recent wind at middle elevations but drifts were soft and stubborn
  • Moderate winds yeilded light blowing snow at upper elevations
  • We intentionally and easily triggered a small (D1) on the leeward side of wind affected ridge at upper elevations
  • The recent snow had transtitioned to moist below 5000' during our descent
  • Rain started to come down as we packed up the sleds at 1630hrs. 

 

Media to follow

Kicked off small (D1) soft slab on a wind-loaded test slope.

Weather

Cloud Cover
overcast
Wind Loading
light
Rain Elevation
5000'
Recent Snowfall
10-15
Snow Avail For Transport
small smounts

Winds increased throughout the day with very light snowfall. Storm seemed to roll in aroun 1630hrs.

Snowpack

Test Pit @ 6200  S aspect: HS = 150cm, ECTX .  70 on top of 2/3 crust.  Thin layer of facets under a sun crust down 60 cm.

Hand Pit @ 6800 NE aspect:  15cm 4F windslab, also found a think crust and graupel down 50 cm. 

Avalanche

Size
D1 R2
Aspect
NE
Trigger
AS
Elevation
6900 ft

Intentionally triggered wind slab below cornice on a convex test slope.