Cirque Summit and North Couloir

Quick report

Weather

warm, cold, sunny

Ride Type

alpineSlopes, mellowSlopes, steepSlopes

Riding Quality

good

Snow Conditions

crusty, windAffected, powder

Avalanche Conditions

avalancheConditionSound, avalancheConditionSlab

The first two photos are from the Cirque Forepeak Skier remote and Skier controlled avalanches that we reported Tuesday. The third photo is looking down the couloir after cleaning out a slab avalanche before skiing. Rope beta, bring minimum two 50m ropes in order to make the full rappel in one go. There is some tatt on a horn that can be used as a mid anchor but there isn’t much room at it.

Weather

Wind Speed

windSpeedLight

Blowing Snow

none

Sky Condition

clear

Wind Direction

NE

Temperature Trend

rising

Precipitation Type

none

Avalanche

Run Length

130

Slab Width

5

Trigger Type

skier

Avalanche Size

1.5

Slab Thickness

20

Trigger Sub Type

intentional

Start Zone Aspect

NW

Start Zone Incline

40

Avalanche Character

stormSlab

Number Of Avalanches

1

Start Zone Elevation

2900

Avalanche Observation

12hrsAgo

Weak Layer Crystal Type

stormSnow

Start Zone Elevation Band

alp

Avalanche Occurrence Datetime

2024-02-16T21:41:00.000Z

After rappelling into the couloir and getting skis on, I shuffled across from one wall to the other and the slab released below. It cleaned out the couloir and ran approx 100m.