Avalanche

Skyline Lake

Josh HirshbergStevens Pass
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Photo d’observation 1Photo d’observation 2Photo d’observation 3

Weather

Air Temp
47
Cloud Cover
few
Wind Loading
none
Recent Snowfall
0
Snow Avail For Transport
small smounts

Calm, hot, sunny day. Some thin clouds.

Snowpack

I traveled on S-SE, solar aspects mostly at low elevations. I found a variety of surfaces and (in)stability.

Most surfaces were melt forms. Well-shaded slopes had stout crusts that remained fully frozen at least through 1 p.m. Slopes with any amount of sun were softening by 11a. Very steep slopes near rocks were barely supportive by 1p. Most other sunny slopes were somewhere in between, with 5-10cm of weak, moist surfaces on 5-10cm of strong, pencil-hard crust. There were a few lower-angle, well-shaded slopes that held up to 10-20cm of settled recent snow. While this hadn't transitioned to melt forms, it was becoming moist.


Avalanche

Size
D2
Type
WS
Count
2
Aspect
NE
Trigger
NC
Elevation
5170 ft

Between 3,900-4,700ft on S-SE slopes ~40*, ski cuts were able to initiate rollerballs and nearly loose wet avalanches. There were a couple of notable large to very large avalanches on northerly aspects at middle to upper elevations. They were older, tho likely happened after March 25th.