Avalanche Forecast
Regions: Sea To Sky.
Confidence
Good - Due to the quality of field observations
Weather Forecast
Light precipitation for this evening, then this weather system should be out of the Sea to Sky region by Sunday morning with another light pulse of weather on Sunday afternoon and into Monday morning. Clear skies and sunny conditions into next week. Daytime freezing levels are expected to be between 1000 and 1500 m for early part of next week, then climbing to 2000 by Wednesday.. Moderate southerly alpine winds are expected tonight, then light winds preominantly from the East..
Avalanche Summary
No recent reports of avalanches in the Sea to Sky region
Snowpack Summary
Up to 50cm of recent storm snow is sitting on a thin breakable crust that caps recent moist snow on rain crust buried last Saturday. Reports suggest this 5 cm thick solid rain crust exists up to at least 2200m. Strong southwest winds may have shifted these new accumulations into touchy wind slabs in exposed terrain. A facet/crust persistent weakness buried mid-March is down approximately 70-130 cm and is still producing hard but sudden results in snowpack tests. This remains the chief concern amongst avalanche professionals in the region due to it's potential for very large avalanches. Cornices are now large and a cornice failure might trigger a large destructive avalanche. Solar aspects will become active with daytime warming.
Avalanche Problems
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 3
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Unlikely - Possible
Expected Size: 1 - 4