This bulletin was published using limited data from the Garibaldi South corner of the region. Regional snowpack variability likely exists, so be your own forecaster and make observations continually as you travel.
Summary
Confidence
Moderate - Due to the number of field observations
Weather Forecast
Light flurries are forecast for Tuesday. A mix of sun and cloud is expected on Wednesday and Thursday morning with light snowfall developing by Thursday evening. Ridgetop winds should remain mainly moderate from the northwest with freezing levels hovering around 500m for all 3 days.
Avalanche Summary
Explosives testing on Sunday produced storm slabs to size 2.5 in high elevation lee terrain. Most of the observed avalanche activity released within the new storm snow.; however, in at least 2 cases slabs released on a buried crust. At the time of publishing, no new avalanches were observed on Monday.
Snowpack Summary
5-10cm of low-density snow overlies 40-50cm of snow from last weekend's storm. These storm accumulations were shifted by strong winds into much deeper deposits in high elevation lee terrain. Below 1800m, there was much less wind effect and therefore less cohesion in the newly formed slab.Below 2200m, a hard rain crust can be found approximately 120cm below the surface. Recent tests suggest an improving bond at this interface. That said, in some areas the crust may remain reactive for some time after weaknesses within the storm snow have strengthened.
jlammers,
Avalanche Canada
