Observation: Turnagain

Location: Sunburst

Route & General Observations

Toured up to Taylor Pass and then up to the weather station along the 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?Yes
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?No
Observer Comments

One large avalanche in the back corner of this hanging valley. It looked like a large cornice fall had triggered a wind slab or deeper slab. We were really far away but I would guess the debris was in the D2-3 range.

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

Clear and cold in the morning, with temps staying below freezing throughout the day. Calm winds. There were some layers of valley fog hanging out in the northern end of the pass for part of the day.

Snow surface

Surface hoar (1-3mm) on top of 1-3" of new snow from last night. The surface snow was dry throughout the day. The only moist snow producing wet loose was on steep southern aspects. Dry loose in steeper areas on all other aspects. There was a crust about 10 cm down in areas with southerly exposure.


We dug some hand pits looking for surface hoar on the face of Sunburst on the route up. We did not find any, but the snow surface was firm underneath the new snow so we could only dig down ~30cm to check. Along the ridge there were some wind loaded pockets 6-12" deep that felt hollow but did not produce any shooting cracks or small avalanches.

Photos & Video
Please upload photos below. Maximum of 5 megabytes per image. Click here for help on resizing images. If you are having trouble uploading please email images separately to staff.