Avalanche Forecast
Issued: Apr 21st, 2017 4:02PM
The alpine rating is Cornices and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Due to the number of field observations
Weather Forecast
Saturday: Mainly cloudy with rain showers transitioning to flurries in the evening and periods of snow overnight. Up to 5 cm accumulating at higher elevations by the end of the day. Moderate southwest winds. Freezing level dropping to 1500 metres over the day with alpine temperatures from 0 to -3.Sunday: Cloudy with flurries bringing up to 5 cm of new snow. Light south winds. Freezing level to 1500 metres with alpine temperatures of -4.Monday: Mainly cloudy with isolated flurries and a trace of new snow. Light southeast winds. Freezing level to 1600 metres with alpine temperatures of -3.
Avalanche Summary
No new avalanches have been reported, but there have been limited observations lately.Please enter your observations on the Mountain Information Network (MIN). See here for details.
Snowpack Summary
Friday's warm temperatures and sunshine moistened surface snow on most aspects and elevations. Warm overnight temperatures will prevent it from refreezing into a solid crust. Below the surface, stormy weather over the beginning of this week brought about 50mm of precipitation to the North Shore Mountains, most of which fell as rain to the summits. In the Sky Pilot area, 30-40cm of snow likely fell above 1600m and was redistributed into wind slabs in lee terrain by recent southeast winds. Cornices also gained fragile new growth over the same time period. Below the wind effect, the new snow is now forming a good bond to the underlying crust. The mid and lower snowpack are well settled and strong.
Problems
Cornices
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 22nd, 2017 2:00PM