Delicate cornices up high

Quick report

Weather

cloudy

Ride Type

cutBlocks, mellowSlopes, openTrees

Riding Quality

good

Snow Conditions

powder, windAffected

Great early season turns on the snowmobile! Was in this area prior to saturdays storm and saw up to 20mm surface hoar developed on protected N-E aspects. Returning after the storm we saw evidence of significant cornice growth on the same aspects, and natural cornice failures triggering storm slabs below. These avalanches had abnormally long run lengths considering their lesser mass. Foot pen of 15-30cm depending on wind affect. Firm snowmobiling, and punchy/hollow in bushy areas Still some delicate new cornices hanging out up high, give them space!

Weather

Wind Speed

windSpeedCalm

Blowing Snow

none

Sky Condition

overcast

Precipitation Type

none

Avalanche

Run Length

250

Slab Width

25

Trigger Type

natural

Wind Exposure

leeSlope

Avalanche Size

1.5

Slab Thickness

50

Start Zone Aspect

NE

Vegetation Cover

sparseTrees

Start Zone Incline

40

Avalanche Character

corniceWithSlab, stormSlab

Number Of Avalanches

2-5

Start Zone Elevation

2100

Runout Zone Elevation

1950

Weak Layer Burial Date

2024-12-07

Avalanche Observation

moreThan48hrsAgo

Weak Layer Crystal Type

surfaceHoar

Start Zone Elevation Band

tln

Avalanche Occurrence Datetime

2024-12-07T07:00:00.000Z

Observed few days old natural cornice failure in both open slide paths triggering up to size 1.5 storm slab in both paths. Assuming the occurrence happened on Saturday during the storm event based on wind sifting and coverage of the debris.