Valanga

Avalanche: Porter Fork

Brian Muller & Ian NicholsonSalt Lake
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Avalanche

Slab Width
21 m
Vertical Fall
30 m
Avalanche Type
Soft Slab
Slab Thickness
41 cm
Start Zone Aspect
Northeast
Start Zone Elevation
2926 m

avalanche was on a NE facing aspect around 9500 feet or so, I believe I pinpointed the location on the map. I was only able to look at it from a distance, but it appeared to be around a foot and a half deep, 70' wide, and maybe a hundred or so feet in elevation. It was a soft slab, and I did not notice any tracks in or out, so it could have either been a natural, or triggered from a natural cornice fall.

After continuing skinning, we stopped and dug a pit. I will hopefully be able to give you guys a full picture of the pit today, but our results in this pit, which was on a West facing aspect of Gobblers, approximately 500 vert below the summit. On an ECT, we had full Q2 propogation at 45 cm, on facets just below the MLK crust. On two seperate CT's, we had results of 12 and 18, on a layer I had detailed in my obs yesterday, but am not recalling at the moment, as these were Ian Nicholson's CT's. What I do remember about the layer, I believe 30 cm down, was that on doing temperature gradients, in the 10 cm around this higher crust and possible facet layer, was a 1.7˚ C TG, telling me this crust region was trending towards more faceting.