Observation: Hatcher Pass

Location: Microdot SW Ridge

Route & General Observations

Toured up from Independence lot around 9am towards Microdot to check on how things faired after last nights mini storm. Beautiful, warm sunny morning!

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

Multiple avalanche visible throughout the area. Most seemed to have occurred yesterday (2/10) and at the tail end of the storm as debris was partially snowed on. Pictures below
On south to west aspects (clockwise) wind effect was encountered but no cracking/collapsing observed (at ~4200').

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

9:30 am at parking lot, 3100'
14°F, Clear skies, Light winds from the NE
10:40 am at pit location, 4000'
16°F, Few clouds, Calm winds gusting light from the ENE
1:00 pm at parking lot, 3100'
26°F, Few clouds, Calm-light winds from NE
Observed light wind transport on ridges throughout the tour

Snow surface

~4in of new snow at the parking lot. Conditions were mostly powder at and below 4000' on S aspects. More westerly aspects had various levels of wind effect. Most of the ridge up Microdot was fairly scoured and some slabby pockets were found


Dug a pit on a south aspect off of the SW ridge of Microdot at 4000'
Pit profile and sidewall pics below
The snowpack in this location was heavily faceted. Almost all but the new snow was faceted grains that gained size with depth
CT11SC x2 17cm down at new/old interface
CT23SC x2 89cm down in a layer of chained depth hoar (5mm)
PST 40/100 END 89cm down, energetic!

Photos & Video
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