Avalanche: Seward

Location: Snug Harbor to Lost Lake

Date:
Observer:
Route & General Observations

Rode from the end of Snug Harbor road through V-Max hill and over to Lost Lake and the weather station. Got the weather station back up and running, yay!

Avalanche Details
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Trigger NaturalAvalanche Type Unknown
Aspect SoutheastElevation 3600ft
Slope AngleunknownCrown Depth 12in
Width 100ftVertical Run 500ft
Avalanche Details

Recent D2 wind slab avalanche, SE face around 3,600’. Likely ran sometime overnight or this morning (see photo).

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

Wind loading on easterly aspects along the high peaks till midday by the northwest winds.
Two wind slabs. One larger mentioned earlier and a smaller slab along the same ridge.

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

Sunny and cold. Single digit temps warmed up to around the teens.
Ridgetop NW winds were blowing enough to transport snow off the high peaks until midday. Light breeze to calm in valley bottoms and mid elevations.

Snow surface

Variable. Soft settled powder in V-Max drainage. Everywhere else it was highly wind effected. A lot of sastrugi, hard wind pillows and scoured zones from Boulder Creek to Lost Lake.
*Too cold for south slopes to heat up today, even in lower elevation areas out of the wind.

Snowpack

We dug two pits in the V-Max area on a northerly aspect at 2,300’.
Pit #1 HS 290cm
ECTP 17 30cm down on stellars and near surface facets sandwiched in between 2 wind slabs
ECTP 26 50cm down on buried surface hoar (3-5mm) sitting on a pencil hard surface

Pit #2 HS 320cm
ECTN 14 30cm down on setallars and near surface facets under a hard wind slab and over 1 finger hard snow
ECTN 28 55cm down on buried surface hoar (3-5mm) sitting on pencil hard snow

We felt the biggest concern was fresh wind slabs sitting on weak snow.
There was a lot of old avalanche activity from March 12th storm. All activity seemed to be composed of that storm snow and didn’t look to step down into buried weak layers such as the buried surface hoar we found.

Photos & Video
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