Observation: Hatcher Pass

Location: Archangel, Lane Hut, Sidney Creek

Route & General Observations

Snowmachined from Fishhook lot, up Archangel to the former Lane Hut site, up Sidney Creek, back around Marmot, and part way up the road to Hatcher Pass for a broad survey of conditions at all elevations. Lots of small wet loose avalanches occurred yesterday on all aspects after 3″ new snow fell Saturday night at Independence Mine. 1″ of new snow overnight Sunday was recorded at Independence Mine. This coupled with above freezing temperatures, and sunny skies contributed to new wet loose activity on all aspects and all elevations today. Mid thigh to hip deep boot penetration on steep southerly aspects at mid and lower elevations.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?Yes
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?No
Observer Comments

Widespread small wet loose avalanches at all elevations on all aspects that have occurred the last two days. Possible wet slab at mid elevations near Mabel Mine.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Overcast in the am transitioning to clear skies in the pm. Above freezing temperatures at Independence Mine (3500'). Calm winds. No precipitation.

Snow surface

1" new snow on melt freeze crust on non-solar aspects. Sun affected aspects are all melt freeze grains or melt freeze crust at mid and upper elevations.


No formal stability tests. Stepped off our machines many times on our ride late in the afternoon and evening. Boot penetration on steep solar aspects (SE to SW) at mid elevations was mid thigh to hip deep. Boot penetration at lower elevations was mid thigh and hip deep at lower elevations and our snowmachine track was trenching feet deep on inclines easily. Boot top penetration on low angle solar aspects and all angles at mid elevations. Ankle deep penetration at upper elevations near Independence Mine and Lane Hut site.

Photos & Video
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