Avalanche Forecast
Issued: Apr 2nd, 2018 4:08PM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Forecast snowfall amounts are uncertain on Tuesday
Weather Forecast
TUESDAY: Snow starting Monday afternoon will continue overnight and then ease off on Tuesday afternoon, accumulations of 15 to 25 cm, moderate southwest wind, alpine high temperatures near -8 C, freezing level up to 500 m.WEDNESDAY: Mostly cloudy with light snowfall, accumulations of 1 to 3 cm, light south wind, alpine high temperatures near -6 C, freezing level up to 700 m.THURSDAY: Snow starting in the morning with accumulations of 5-10 cm by the afternoon, light south wind, alpine high temperatures near -8 C, freezing level up to 500 m.
Avalanche Summary
Avalanche activity on Sunday was limited to a few small loose avalanches on steep sun-exposed slopes.On Saturday, a large persistent slab avalanche was reported in the north of the region, failing on the early-March weak layer. It failed on an easterly aspect around treeline. Otherwise, there was further evidence of Friday's natural cycle of storm slab and loose dry avalanches. They were small to large (size 1 to 2) and observed on all aspects and at all elevations.Last week, large persistent slab avalanches were reported on east to northeast aspects at all elevations. These were failing on the early-March and mid-March layers.
Snowpack Summary
Moderate amounts of new snow are expected in the region, but accumulations could reach 30 cm in some localized areas. The new snow will fall on a hard crust layer on south-facing slopes and at elevations below 800-1200 m.In the south of the region, there is about 70 to 90 cm of snow from last week that overlies two layers of surface hoar, which are most prominent on north to east aspects and were buried early-March and mid-March. In the north of the region, these layers are around 40 cm deep.Shallower parts of the region, such as the far north, have weak sugary facets near the bottom of the snowpack.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Aspects: North, North East, East, South East.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Apr 3rd, 2018 2:00PM