Cornices remain the primary concern. Solar radiation is a common cornice trigger. Limit your exposure when it's cloudy and completely avoid cornices when it's sunny.
Summary
Confidence
Moderate - Timing, track, or intensity of incoming weather system is uncertain
Weather Forecast
Unsettled weather and cool temperatures continue throughout the forecast period.TUESDAY: Cloudy with scattered flurries (5-10cm). Light southeast ridgetop winds. Freezing level around 1200 m.WEDNESDAY: Mix of sun and cloud with isolated flurries (0-5cm). Strong easterly ridgetop winds. Freezing level around 1500 m.THURSDAY: Mainly cloudy with isolated flurries (2-5cm). Moderate southeasterly ridgetop winds. Freezing level around 1400 m.
Avalanche Summary
On Sunday, several Size 2 wet slabs were triggered with explosives control work in the north of the region. Loose wet avalanches to Size 2 were also reported running naturally on solar (south facing) aspects.
Snowpack Summary
Small amounts of new snow (up to 10cm) fell in the past few days with light to moderate southerly winds. The new snow will likely be sitting on hard surfaces created by strong winds last week, or melt-freeze crusts below 1400m.Sunny breaks and warmer temperatures on Monday has likely left a supportive temperature crust on all aspects up to treeline. North facing alpine slopes reportedly have up to 10cm dry powder, on a firm crust. A weak layer of facets and crusts from late February are buried 100-120 cm down. The layer has been unreactive recently and has a variable distribution. That said, rapid warming of the snowpack or a large trigger, such as a cornice, may still have the potential to trigger it.
mgrist,
Avalanche Canada
