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

Mar 23rd, 2021–Mar 24th, 2021

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

Regions

Glacier.

Moderate winds will encourage slab development and increase the hazard this afternoon.

Weather Forecast

A ridge of high pressure will break down later today as a fontal system pushes in from the NW.  A mix of sun and cloud today with an alpine temperature of -7, moderate SW winds and freezing level at 1400m.  The incoming frontal system will deliver 5-10cm of new snow Wednesday with an alpine temperature of -5 and freezing levels around 1400m.

Snowpack Summary

30-45cm of recent storm snow is covering a melt-freeze crust on solar aspects and isolated pockets of surface hoar on polar aspects. Recent high freezing levels have created a moist upper snowpack at lower elevation which is now topped with a breakable crust. Cornices are large and fragile.

Avalanche Summary

A group triggered a skier accidental size 1.5 on the top of Puff Daddy , where the storm slab has gained more cohesion.  Three size 2-2.5 natural avalanches were observed on steep N facing terrain in the highway corridor in the gullies on Mt MacDonald.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Problems

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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.