cerise cr.
AvalancheJohnnyRo · Dec 4, 2016 · Duffey
Quick report
- Weather
- stormy, cloudy, windy
- Ride Type
- openTrees, mellowSlopes
- Stayed Away
- convexSlopes, steepSlopes, alpineSlopes
- Riding Quality
- good
- Snow Conditions
- powder, windAffected
- Avalanche Conditions
- avalancheConditionSnow, avalancheConditionSound
skied NW facing open trees off Vantage Pk, NE facing open trees off Matier E ridge and E facing trees above Keith's hut. While skiing NW aspect below Vantage, ski cutting @1760m on an open slope with an obvious convexity, propagated a 30cm deep, 20m wide storm slab that ran about 30m over the open terrain, and 5-10m into the trees below the slope. Start zone below the convexity was about 40 degrees. Failure plain was SH burried earlier in the week. Slope was fairly sheltered and in the lee. Other, more wind affected slopes we skied, skied well with no results via ski cutting. I would expect burried SH in areas that are well sheltered from the past week's winds (SSW-SE) at similar elevations in the area.
Weather
- Avg Temp
- -5
- Max Temp
- -2
- Min Temp
- -5
- Wind Speed
- windSpeedModerate
- Blowing Snow
- moderate
- Sky Condition
- brokenClouds
- Snowfall Rate
- 2
- Wind Direction
- SE
- New Snow24 Hours
- 15
- Storm Snow Amount
- 20
- Temperature Trend
- steady
- Precipitation Type
- snow
Broken CU in the early am. transitioned to snowy skies for the rest of the day. Winds: S-SE, 20 gusting to 50 km/h
Avalanche
- Run Length
- 30
- Slab Width
- 20
- Trigger Type
- skier
- Wind Exposure
- leeSlope
- Avalanche Size
- 2
- Slab Thickness
- 30
- Trigger Sub Type
- intentional
- Start Zone Aspect
- NW
- Vegetation Cover
- sparseTrees
- Start Zone Incline
- 40
- Avalanche Character
- stormSlab
- Number Of Avalanches
- 1
- Start Zone Elevation
- 1760
- Weak Layer Burial Date
- 2016-11-30T20:00:00.000Z
- Weak Layer Crystal Type
- surfaceHoar
- Start Zone Elevation Band
- tln
- Avalanche Occurrence Datetime
- 2016-12-03T11:00:00
ski cutting above a convexity propagated a 20m wide storm slab, failing on SH burried earlier in the week. Crown was about 15 cm on outside edges and 30cm in the middle. debris ran about 20-30m over open terrain and 5-10m into timber below the open slope. Location: NW facing open trees on Vantage Pk. @ 1760m Slope was lee and sheltered from S wind that usually blows through the vantage/matier col. adgacent/near-by slopes which were more wind affected/less sheltered, did not show the same results and skied well.