spearhead avalanche activity

Avalanche date/time

Wednesday, February 3, 2021 at 11:00

Estimated occurrence time of avalanche

Less than 12 hours ago

Number of avalanches in this report

1

The size of avalanche

2

Slab thickness

125cm

Slab width

15m

Run length

250m

Avalanche Character

• Storm slab

Trigger type

Skier

Trigger subtype

Intentional

Start zone aspect

• E

Start zone elevation band

• Alpine

Start zone elevation

2,100m

Start zone incline

40°

Runout zone elevation

1,910m

Crust near weak layer

Yes

Wind exposure

Lee slope

Vegetation cover

Open slope

no skier involvement

ski cutting top of entry convexity produced no result

second ski cut mid convexity produced along ski cut path

narrower entry chute slab propagated full width 50m below where it widens

bed surface was the recent storm snow interface - didn’t evaluate bed surface crystals, hang fire was more pressing