Observation: Summit

Location: Fresno SE Ridge

Route & General Observations

This storm brought in warm temps overnight without a decent freeze. With the day before being warm the snowpack hasn’t had a good freeze in a while. It seems water is working its way down the snowpack dissolving MFcr layers observed in a pit dug the week before. This could make the facets at the bottom of the snowpack more active.

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)?Yes
Observer Comments

On the skin track up, I experienced several areas of cracking and collapsing on South and East Aspects propagating around 6ft around me.

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

Sky: Overcast New Snow: 5cm, Wind: Light, no transport, Air Temp: 0.5 C,

Snow surface

5cm Wet Pow


Test Pit: 33 Degree Slope, S Aspect 1892'
Snowpack: HS 110cm
Crystal ID/Hardness:
110-105cm, New Snow, F
105-95 MFcr P-
95cm-50cm Blend of mostly Melt Forms, 1 dissolving MFcr, F-1F
50-0cm F with 2 dissolving MFcr.
At Ground: Facets (Depth Hoar?) around 3-5mm. Sticks together barely (moist).

Temp Profile:
Surface: 0
100cm: -1
90cm: 0
80cm: 1.5
70cm: -1
60cm: 0
50cm: 0
40cm- 0

CT3 down 65cm on 50cm F Layer (Facets?)

Photos & Video
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