Observation: Summit

Location: Fresno

Route & General Observations

Toured up to 2900’ from the Manitoba lot with one partner. Ascended and descended SE ridge.

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

Experienced whumphing on east aspects of SE Ridge between ~2300-2500’.

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

Sprinkling rain at 10:40. Clouds began to break around 11:00. Moderate wind felt above tree line from the south.

Snow surface

Road up to 2200’: wet snow
2200-2500’: light crust starting to for on surface
~2500’: rain line, drier snow surface


2000’: 8cm wet snow sitting on 5cm of dry snow sitting on a crust

2400’: pit location SE aspect 21 degree slope
HS = 85cm
0.5cm surface crust
15cm moist 4F
30cm dry F
1.5cm melt freeze crust, below this crust are various melt freeze crusts and rounds/rounding facets. CT3,CT7 on this crust. Whumphing experiences near pit location.