Avalanche Forecast
Issued: Dec 13th, 2019 4:00PM
The alpine rating is
, the treeline rating is , and the below treeline rating isTriggering an avalanche is most likely in wind affected terrain and steep rocky slopes.
Summary
Confidence
Moderate - Uncertainty is due to extremely variable snowpack conditions reported through the region.
Weather Forecast
FRIDAY NIGHT: Isolated flurries, 20 km/h wind from the west, alpine high temperatures around -6 C.
SATURDAY: Mix of sun and cloud, light wind from the northwest, alpine high temperatures around -8 C.
SUNDAY: Sunny with some clouds, 30 km/h wind from the northwest, alpine high temperatures around -10 C.
MONDAY: Mix of sun and cloud, light wind from the northwest, alpine high temperatures around -11 C.
Avalanche Summary
Recent avalanche activity is limited to a few wind slab avalanches (size 1-2) triggered with explosives. Avalanche activity has quieted down since last weekend, when several large persistent slab avalanches (size 2-3) were reported at treeline and alpine elevations.Â
Snowpack Summary
New snow and wind has likely formed fresh wind slabs at upper elevations. In sheltered areas 20-30 cm of snow from last weekend is gradually settling. Weak snow can be found 30-80 cm deep around crust layers that formed in November and October. These persistent weak layers produced large avalanches last weekend but have gained strength since then. Snowpack depths range between 50-100 cm at higher elevations and taper rapidly below treeline.
Valid until: Dec 14th, 2019 5:00PM