Avalanche Forecast
Regions: Little Yoho.
Cool temperatures are forecast for Thursday, but pay attention to solar radiation and how quickly the day is warming up. Some loose wet avalanches may occur if day is warmer then forecasted.
Plan on starting and finishing your day early.
Confidence
Moderate
Avalanche Summary
No recent slab avalanches reported in the past four days.
Snowpack Summary
Crusts on solar aspects to ridgetop, with crusts on all aspects at treeline and below. 20-40 cm of dry snow on north-facing alpine slopes with some wind slabs in alpine lee areas.
A stiff midpack sits over a weaker layer of Jan facets in some places, but this is mainly a concern in thin snowpack areas. On all but high north aspects, crusts in the upper snowpack overlay this midpack slab. If these crusts are thick, and remain frozen, they provide good strength over the weakness.
Weather Summary
Thursday - mix of sun and cloud, cool temperatures (alpine highs -3°C), light northerly winds, and freezing levels 1900 - 2000 m.
Friday - will see mostly sunny skies, warmer temperatures (alpine highs -1°C), light westerly winds, and freezing levels to 2400 m.
Saturday - slightly cooler, cloudy skies and light flurries, up to 5-10 cm possible.
Avalanche Problems
Persistent Slabs
A 90-150 cm slab sits on the Jan 30 facet layer. On all but high north aspects recent sun crusts and the March 27 rain crust cap this slab, providing good security. Continue to use caution in thinner snowpack areas in the alpine, or when these crusts are weak or breaking down with daytime heat.
Aspects: North, North East, East, West, North West.
Elevations: Alpine.
Likelihood: Unlikely
Expected Size: 2 - 3