Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Jan 28th, 2016–Jan 29th, 2016

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

The new storm snow will be inviting but temper your desire to jump into the steep and deep until it has had a chance to stabilize.

Weather Forecast

Temperatures will cool into the weekend with flurries producing another 10 cm by Sunday.  Westerly winds will drop and swing northerly as the cool air invades.

Snowpack Summary

Up to 30 cm in south, less in the north fell on Thursday with moderate SW winds building touchy storm slab on lee slopes at tree line and above.  Moderate rain below tree line along with above freezing temperatures have created a moist snowpack  made up of the large facet crystals.

Avalanche Summary

A loose snow avalanche cycle to size 2 occurred on Thursday on all aspects and elevations in steep terrain.  Moist snow avalanches below tree line triggered by moderate rain.  Very limited alpine observations due to obscured skies.

Confidence

Due to the number and quality of field observations on Friday

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

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.