Avalanche Forecast
Issued: Apr 10th, 2015 10:30AM
The alpine rating is Wind Slabs and Cornices.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Forecast snowfall amounts are uncertain on Saturday
Weather Forecast
FRIDAY NIGHT: 1 to 2mm of precipitation possible, less than 5cm total snowfall expected. Strong SW winds.SATURDAY: Freezing level hovering around 1500m. Moderate SW winds at treeline, Strong SW/W winds at ridgetop. 2 to 3mm precipitation, 2 to 6cm of snow possible. Overcast.SUNDAY: Freezing level starting at 1000m rising to 1500m. Light SW winds at treeline, Moderate W winds at ridgetop. Scattered cloud. Isolated flurries, no significant precipitation expected.MONDAY: Freezing level around 1500m. Light SW winds at treeline, moderate SW winds at ridgetop. Few clouds in the morning building to overcast in the afternoon. Scattered afternoon flurries, no significant precipitation expected.Â
Avalanche Summary
Several cornice falls have been reported in the last few days, some of which have triggered slabs on slopes below, some which have not.
Snowpack Summary
Surface faceting is beginning to work on the 10 to 25cm cm generated by convective snow fall last weekend. The atmosphere has been unusually calm and wind effect is very isolated. This snow remains dry on north facing features above 2300m while corn is starting to form to ridge-top on south facing aspects. Moist snow is reported everywhere else. Just below this snow you will likely find the the late-March crust which is supportive to around 2000m. Moist snow underneath the late-March crust is ubiquitous in most of the region.Persistent weak layers in the mid-pack remain a lingering concern, although they seem to have gone dormant for the time being. In the north of the region, the mid-March crust/facet layer is down 40-60cm and the mid-February crust/facet/surface hoar layer is down about 80 cm. While weak layers formed earlier in the winter remain intact, they too are dormant at this time.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 11th, 2015 2:00PM