Anderson Conditions Feb 9-12
Quick reportmikael.callaway · Feb 11, 2024 · Sea To Sky
Quick report
- Weather
- sunny
- Ride Type
- alpineSlopes, convexSlopes, mellowSlopes, openTrees, steepSlopes, sunnySlopes
- Stayed Away
- convexSlopes, steepSlopes
- Riding Quality
- good
- Snow Conditions
- crusty, powder, windAffected
- Avalanche Conditions
- avalancheConditionSlab, avalancheConditionSnow, avalancheConditionSound
Skied Feb 9-12 in the Anderson Cabin area. Extensive surface hoar on old rain crust observed on slopes and in meadows at and below tree-line on Feb 9 prior to 15-20cm snowfall Feb 9-10. Light to moderate wind during the storm from the S/SW. Temps ranged -8 to 0 at 1200m with mostly clear skies Feb 10-12. Whumpfing and shooting cracks observed in isolated cross loaded and lee terrain at tree-line on Feb 10 and 11. Several size 1 and 1.5 skier triggered avalanches on steep alpine and tree-line convexities. Numerous naturals observed up to size 2 from steep E and N alpine aspects. The best skiing was found in the alpine and at tree-line on mellow W through N/NE aspects.
Avalanche
- Run Length
- 80
- Slab Width
- 30
- Trigger Type
- skier
- Wind Exposure
- leeSlope
- Avalanche Size
- 1.5
- Trigger Sub Type
- accidental
- Start Zone Aspect
- NE
- Vegetation Cover
- sparseTrees
- Start Zone Incline
- 35
- Avalanche Character
- looseDry, stormSlab, windSlab
- Crust Near Weak Layer
- 1
- Number Of Avalanches
- 2-5
- Start Zone Elevation
- 1300
- Runout Zone Elevation
- 1200
- Weak Layer Burial Date
- 2024-02-09
- Avalanche Observation
- 24to48hrsAgo
- Start Zone Elevation Band
- alp, tln
- Avalanche Occurrence Datetime
- 2024-02-11T21:30:00.000Z
3 skier trigger avalanches on Feb 11. All avalanches occurred in the 1200-1350m elevation range. One size 1 wind slab avalanche was triggered on a short steep East facing slope at 1350m while ascending. Several whumpfs were observed in the vicinity and the avalanche was intentional/expected. One ski cut on a NE aspect ridge crest convexity triggered a size 0.5 which sympathetically/remotely triggered a larger avalanche (Sz 1.5) on the slope below.