Avalanche: Seward, Other Regions

Location: Snug Harbor (near Boulder Creek)

Route & General Observations

Snug Harbor trailhead to site of 2/10 avalanche fatality to Lost Lake weather station and back to Snug Harbor TH.

CNFAIC forecasters traveled to the site of yesterday’s fatal avalanche to gather pertinent snowpack, weather and avalanche information. Preliminary information can be found on the accidents page, under the observations tab. Direct link HERE.

Side trip to Lost Lake weather station for mid-winter maintenance.

Avalanche Details
If this is an avalanche observation, click yes below and fill in the form as best as you can. If people were involved, please provide details.
Trigger SnowmachinerRemote Trigger Unknown
Avalanche Type Hard SlabAspect West
Elevation 2600ftSlope Angle 37deg
Crown Depth3ftWidth 150ft
Vertical Run 250ft  
Near Miss / Accident Details
Number Caught/Carried? 1Number Partially Buried?0
Number Fully Buried? 1Number Injured?0
Number Fatalities? 1  
Avalanche Details

Snowmachine triggered avalanche on 2/10 resulted in single burial/ fatality.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Observer Comments

Forecasters observed signs of recent avalanches on route in today (2/11).

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

2/11: Partly cloudy, temps in the low teens at 10:30am, warming to low 20's by 5pm. Winds were light, becoming moderate from the north this afternoon. No new precip today.

Snow surface

Wind effected at most elevations. Some soft snow found lower down, in protected areas.


Test pit at 2450' (below avalanche site). West aspect. 17 deg slope. HS: 320cm
CT17,19 and ECTP20, 22. All tests failing at top of January facets 50-70cm down.
50-70cm slab is 1F/ Pencil hard over facets. Bed surface is P/K melt-freeze crust under facets. This is the same failure layer as occurred in the fatal avalanche.

Photos & Video
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