| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observation: Hatcher Pass
Location: Marmot
New snow, little wind, a short 3 hr window of good evening light before nightfall.
Obvious signs of instability
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
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.
Snowpack
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.
Marmot SW face with some new tracks post-storm. Folks were mostly conservative.
Skyscraper with some naturals avalanches
Nice evening light
20 - 30 cm ski penetration