Winds have created a variable snowpack. Be alert to conditions that change with aspect and elevation.
Summary
Confidence
Fair - Due to the number of field observations
Weather Forecast
Generally light precipitation is expected on Wednesday and Thursday, with the freezing level around 1200 m and winds moderate to strong from the S to SE. On Friday, a more organised system brings 5-10 mm precipitation with the freezing level near 1400 m.
Avalanche Summary
On Monday, a skier triggered a size 2 wind slab on a NE aspect at 1300 m. Several loose avalanches also failed on steep sunny slopes. On Sunday, skiers triggered several size 1 storm slabs on steep lee features. Click on the blue dot on the map to see a recent wind slab that may have failed naturally or remotely in Sinclair. It was a thick, hard wind slab on a north aspect. There are likely to more like this lurking.
Snowpack Summary
Anywhere from 20 to 120 cm recent storm snow has been redistributed by winds into soft and hard wind slabs at alpine and treeline elevations (highest storm snow amounts were in the north and west). This overlies various surfaces including old wind slabs, hard crusts, surface hoar, and/or surface facets. At the base of the snowpack, weak facets may be found. Cornices are large and potentially fragile. Below treeline, the snow appears to be in a spring melt-freeze cycle.
pgoddard,
Avalanche Canada
