Little Yoho Valley

Quick report

Weather

sunny

Ride Type

mellowSlopes, sunnySlopes, openTrees

Stayed Away

convexSlopes, alpineSlopes, cutBlocks, steepSlopes

Riding Quality

good

Snow Conditions

powder

Avalanche

Run Length

36

Slab Width

25

Trigger Type

skier

Avalanche Size

1.5

Slab Thickness

100

Trigger Sub Type

accidental

Start Zone Aspect

SE

Vegetation Cover

sparseTrees

Start Zone Incline

30

Avalanche Character

deepPersistentSlab

Number Of Avalanches

1

Start Zone Elevation

2250

Runout Zone Elevation

2250

Avalanche Observation

moreThan48hrsAgo

Weak Layer Crystal Type

facets, depthHoar

Start Zone Elevation Band

tln

Avalanche Occurrence Datetime

2023-02-15T18:00:00.000Z

Incident

Group Size

2

Terrain Trap

slopeTransitionOrBench

Group Activity

skiing

Number Injured

0

Number Involved

0

Number Caught Only

0

Number Fully Buried

0

Snow Depth Trigger Point

average

Terrain Shape Trigger Point

convex

Number Partly Buried Able Breathing

0

Number Partly Buried Impaired Breathing

0

We triggered a small avalanche on a SE slow slope in the Little Yoho Valley area. We had previously skied this slope and went up for another run. We tried to stay to relatively low angled, protected slopes. We skied one at a time. My partner skied the slope first and I followed once he was through the 30 deg section and waiting in a protected area below. I then started to ski the slope and triggered the slide. I immediately skied out into the treed area (lookers right), alerting my friend below. The avalanche triggered at the small convexity between the low angled slope above and the somewhat steeper (~30 deg) slope that slid. The slope appeared to fail on the deep persistent weakness pretty much at the bottom of the pack.