Avalanche

SSE facing slope on Tallac

Ryan TilleyCentral Sierra Nevada
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Quick report

Wet loose on the southern aspects. By what we observed today, only southern slopes are showing signs of loose wet instability. This problem seems to be limited to slopes with heavy amounts of solar radiation, but could become more and more apparent on adjacent slopes as the warming and high pressure continues.

Weather

Air Temp
40
Cloud Cover
clear
Wind Loading
light
Rain Elevation
13000
Recent Snowfall
0
Snow Avail For Transport
none

Blue bird day.

Snowpack

Much of Tahoe's snowpack was formed over one or two storm events (depending on elevation). We didn't dig a pit in Tallac, so we don't have a full understanding of the layers within the snowpack. The area with observed avalanches had a total HS of around 20-30cm's, probably all from the last storm event.

Avalanche

Size
D1
Aspect
SE
Trigger
N
Elevation
8000 ft

Small D1 R1 naturally triggered loose wet on a south east facing slope. (WL-NL-R1-D1-S)