Avalanche

Skyline Ridge

Josh HirshbergStevens Pass
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4Observation photo 5

Quick report

Moist to wet surface snow slid easily on almost all slopes near or over 40 degrees.

Weather

Air Temp
45
Cloud Cover
few
Wind Loading
none
Recent Snowfall
2
Snow Avail For Transport
small smounts

Very warm, calm, sunny day.

Snowpack

The inch of new snow quickly became moist, though it stayed dry on shaded slopes until close to 12 p.m. On steep, northerly aspects the new snow rested on a thin crust that was also breaking down.

The top 150cm of the snowpack was either wet or moist. At 5,000ft, the April 2nd crust was an average of 35cm below the surface. At that elevation, it was supportive to boots through 1p on all aspects.

Avalanche

Size
D1.5
Aspect
NW
Trigger
N
Elevation
5750 ft

I saw numerous rollerballs and small, D1 wet loose avalanches on a wide range of slopes, with the bulk at mid-elevations. I could trigger small wet avalanches in the top 6" of the snowpack. The triggered slide pictured above (ENE, 5,280ft) was 12cm and ran on an interface of wet grains over smaller-grain moist snow. Given the amount of snow that fell since the 2nd, and the warming, I was surprised not to see more avalanches in general, and none that were D2 or larger.