Additional moisture (rain at lower elevations) and no overnight recovery will boost the hazard of the snowpack. Be Cautious.
Click the "More Spring Conditions details" link below for more info on the varying spring condition scenarios.
Summary
Weather Forecast
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Snowpack Summary
Melt-freeze crust on all aspects and elevations is weakening to disappearing with current steady warm temperatures and rain precipitation; northerly aspects above treeline may still hold dry snow. Persistent weakness near the bottom of the snowpack will remain a concern in shallow areas and northerly alpine aspects.
Avalanche Summary
Freezing levels and temperatures on a slow steady rise, with rain, expect increasing avalanche activity.
Confidence
Problems
Loose Wet
Subject to type of load, time of day, aspect and elevation.
Possible at all elevations and aspects.
- If triggered the loose wet sluffs may step down to deeper layers resulting in large avalanches.
- Use extra caution on solar slopes or if the snow is moist or wet.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Wet Slabs
Subject to type of load, time of day, aspect and elevation. Anticipate large slabs in connected features. ANY slide is likely to be large and will entrain the remaining winter snowpack
- Daytime warming will weaken surface layers, plan your day around being back to the trailhead early.
Aspects: South East, South, South West, West, North West.
Elevations: All elevations.
Likelihood
Expected Size
Cornices
Unpredictable and likely to trigger deeper instabilities on the slopes below.
- Cornices become weak with daytime heating, so travel early on exposed slopes.
- Pay attention to overhead hazards like cornices which could easily trigger deep slabs.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 30th, 2021 4:00PM
