Observation: Hatcher Pass

Location: Marmot

Route & General Observations

New snow, little wind, a short 3 hr window of good evening light before nightfall.

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?No
Collapsing (Whumphing)?Yes
Cracking (Shooting cracks)?No
Observer Comments

Set off a couple whumphs when breaking trail on a steeper convexity on the lower / mid-elevations of Marmot. There were a couple existing tracks nearby, and boulders under snow. Trail breaking on upper ridgeline did not yield any red flags.

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

Cloudy flat light until 1 PM, broke out to mostly clear at about 2 PM until sunset. Temps in the mid twenties, no wind.

Snow surface

Low density snow. Some visible wind effect on ridgelines.


Low density snow, about 20 - 30cm, over a firmer layer.

Smoked a few rocks on the upper SW ridgeline where snow pack is thinner overall. Found deeper snow in leeward terrain.

Photos & Video
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