Crusts & Wet Snow Activity in Mammoth Lakes Basin

Hammil Bowl Area
Submission Info
Thursday, January 23, 2020 - 10:00am
Red Flags: 
Snowpit Observations
More detailed information about the snowpack: 

Toured up a high treed ridge east of Hammil Bowl to check on the variety of crusts and perhaps find some decent tree skiing.

Below ~9500' in the trees a melt/freeze crusts had formed on most aspects that were not due north or very close to due north. Traveling up between 0900 and 1000 the crusts were still frozen and were breakable. From 9500' to ~10,800 (high point). I encountered quite a range of surfaces. The melt/freeze crust was still evident but I also found wind board, breakable wind crust, faceted soft snow, and even very slick and hard glare ice. Faceting was breaking down the crusts. Hand pits revealed loose faceted snow beneath the crusts.

I also observed large snow rollers and a small wet slide on the SW slope of the Sherwins due east of Lake Mary. No other avalanche activty was observed. No snowpack cracking or collapsing was observed either.

I encountered a little moist snow at ~1100 on exit as the air temp was rising. 

Nice day out. Skiing in the deep, north facing trees was good. Fair to poor elsewhere. 


Weather Observations
Blowing Snow: 
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 
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