Lawine

Point 6

Arden FeldmanRattlesnake
Auf der Karte ansehen
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Quick report

Cracking
specific

There was 3-4 inches of new snow at upper elevations from the last few days of snowfall. The wind has blown the fresh snow into small but sensitive wind slabs right along the leeward side of upper elevation ridgelines. They are easily identifiable and didn't appear to exist further down the slope. 

The persistent slab problem has become unlikely to trigger. However, I still found some weak snow below a slab today that showed potential for propagation. Isolated areas, like near convex, rocky rollovers, are the most suspicious. 

The new snow was wet at lower elevations during my exit in the afternoon due to the warm temperatures. The snow at lower elevations is dwindling, especially on sunny aspects. 

I observed sensitive cracking on wind loaded rolls.

Weather

Cloud Cover
overcast
Wind Loading
moderate
Recent Snowfall
10
Snow Avail For Transport
small smounts

It was an overcast day with light snow falling at upper elevations. Winds were light to moderate out of the southwest. Temperatures were warm, especially at lower elevations.

Snowpack

I dug a snowpit on a northeast aspect at 7800 ft and found a relatively strong snowpack. However, there were still rounding facets buried around 70 cm deep that were noticeably weaker than the slab above. They did not produce any results in extended column tests, but failed and propagated to the end of the column at 42/100 cm during a propagation saw test (PST 42/100 (End)). That is an unstable result that shows there is still some potential for propagation within the weak layer. 

Avalanche

Size
D1 R1
Aspect
E
Trigger
AS
Elevation
7700 ft

I intentionally triggered several small wind slabs on wind loaded upper elevation east aspects. The wind slabs were sensitive but small and isolated to right along the leeward side of ridgelines.