Snowpack

Van Patten

Sarah JakoberElkhorns
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Quick report

I travelled up to 7500' on mainly W through SE aspects with a goal of cataloging surface conditions and seeing how the snowpack structure has changed since my last visit. I observed surface hoar growth on sheltered aspects away from dense trees. These crystals were not being destroyed by the sun on shallower solar slopes (as of 1:00PM), but I did not see any on steeper solar slopes. Below 7000', these crystals were growing ontop of a fragile melt-freeze crust that existed on all aspects. Solar aspects were noticeably crusty and polar slopes above 7000' were still held soft preserved powder. I observed no recent wind effect, though I did not travel into the alpine. There was evidence of very very small loose wet avalanches in steep solar terrain above the lake.

Weather

Air Temp
32
Cloud Cover
clear
Wind Loading
none
Recent Snowfall
Nil
Snow Avail For Transport
small smounts

Clear and calm morning with mild temperatures and intense solar radiation.

Snowpack

At 7500' on a west aspect I observed the early Feb crust down 45cm (1.5') and found some weak sugary snow just above it. These faceted grains were very small however, and did not propagate a fracture during an ECT. I found a total of 120cm's (4'+) of snow. Everything below the early Feb crust was very hard (P+) and sat on top of about 30cm's (1') of older snow from December. These grains at the ground appeared to be gaining strength and did not produce any fractures. I also found a thin layer of graupel 6cm's (2-3") down.