Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Regions
Jasper.
Get out early and be home before the rain or intense solar warming happens. There is some great skiing to be had at all elevations.
Weather Forecast
More precipitation is forecast for region. Below treeline (TL) this will fall as rain increasing the avalanche danger. Above, snowfall of 5-10cm in the next 36hrs. Freezing levels will start to drop below treeline into Friday and overnight cooling will allow the melt freeze crust to regain its strength before daybreak. Some models show sunshine.
Snowpack Summary
10-15cm of dust on curst with no wind effect. Below the new snow crusts extends to treeline (TL) on all aspect and on sunny slopes to near 2300 m. The crust will maintain its strength until it is exposed to prolonged sun and warm temperatures. Windslabs are found at and above TL slopes near ridges into the alpine. Cornices are large
Avalanche Summary
Several small point release loose dry avalanches from steep rocks.
Confidence
Freezing levels are uncertain on Thursday
Problems
Loose Wet
Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.
Deep Persistent Slabs
Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.