Avalanche danger can rise very quickly with warming and solar radiation. Be aware of changing conditions and overhead hazards.For more insight into spring danger ratings, check out our latest
Blog Post.
Summary
Confidence
Fair - Due to the number and quality of field observations
Weather Forecast
Tuesday: Cloudy with scattered flurries. Light westerly winds. Freezing level 1500m.Wednesday: Mainly cloudy with some sunny breaks. Light northwest winds. Freezing level 1600m.Thursday: Flurries with occasional sunny breaks. Light north winds. Freezing level 1900m.
Avalanche Summary
Recent reports are limited to solar triggered avalanches to size 2 from south facing terrain in the alpine and tree-line. In addition a few isolated wind slab avalanches to size 1.5 on northeast facing terrain in the alpine.
Snowpack Summary
Mainly sunny weather and the freezing level reaching up to 2300m for the past few days has created moist snow and/or a crust on all aspects and elevations except for high elevation north-facing terrain. This has helped to settle out last week's storm snow accumulations. Moderate west and southwest winds have redistributed what little dry snow still exists at upper elevations into wind slabs immediately lee of ridge crest.Three persistent weak layers exist in the highly variable snowpack of the South Columbia region:The mid-March sun crust/surface hoar layer down 50-80cm seams to have gone dormant for the time being.The early-March crust/facet/surface hoar layer down around 80-120cm has become less susceptible to human triggering, but still has the capacity to produce large avalanches.The mid-February crust/facet/surface hoar combo is typically down 150 - 200cm. Direct triggering of this layer has become unlikely, however, cornice fall, a smaller avalanche in motion or prolonged warming could wake this layer up, which would result in very large and destructive avalanches.
mbender,
Avalanche Canada
