Observation: Turnagain

Location: Petes North

Route & General Observations

Exploratory uptrack to 2200′

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Overcast becoming obscured.
Very light snow starting around 12 pm
Northeasterly winds 5-15 mph with gusts in the 20s. Noticeable transport starting around 1:30 pm
Truck temp at the start of tour was 14°F and was 29°F at the end. Temperatures in the teens near treeline.

Snow surface

4-6" of settled snow. Soft in wind protected terrain.
Variable wind effect in more open terrain and near treeline. Wind crust trending to small wind slabs on wind-loaded convexities. Suncrust was easy to feel below soft snow or wind crust on steep southerly slopes.


Due to the recent snow being fairly shallow in this zone. It was more of a hand pit vs snow pit day. Anywhere there was a bit of wind effect it was easy to get hand pits to fail on small chaining facets with small surface hoar. On southerly slopes the small wind crust/slabs were failing on the facets over the melt-freeze crust.

We dug at 2050' on NW aspect, 24° slope, HS: 285 cm, pit depth 100 cm. Top was 1F wind slab over soft decomposing precip particles 15 cm down, CT2, CT3 on this interface. 20 cm down was the 3.9 facets/surface hoar (layer buried by this last storm) CT8, CT10 ECTN10. The 2.9 facet layer was 35 cm down CT22, CT25 ECTX, the 1.28 facet layer was 45 cm down CT28 (x2), ECTX

The overall structure was similar to what has been found in other locations on the Pass but the slab/new snow depth is notably less on here on the southern end which is often the case. The slab development over the 3.9 layer will continue to be something we are tracking.

Photos & Video
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