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 4th, 2018–Mar 5th, 2018

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

Regions

Northwest Inland.

Exposed slopes are heavily wind-affected. Seek out supported slopes in wind-sheltered terrain for the best and safest riding.

Confidence

Moderate - Due to the number of field observations

Weather Forecast

MONDAY: Mainly cloudy with isolated flurries and a trace of new snow, light west wind, alpine high temperatures around -13 C.TUESDAY: Cloudy with scattered flurries bringing 1-3 cm of new snow, light wind, alpine high temperatures around -10 C.WEDNESDAY: Mix of sun and cloud, light wind, alpine high temperatures around -8 C.

Avalanche Summary

No new avalanches have been reported. A MCR report from the Howsons (see here) reports widespread wind slab activity (size 1-2) during the peak of the storm last week and a decrease in activity by the weekend. A similar cycle of natural wind slab avalanches was also reported north of Hazelton. Although wind slab activity has declined, human-triggering remains possible.

Snowpack Summary

Moderate to strong outflow winds have been redistributing 50-70 cm of new and recent storm snow in exposed areas. This storm snow has buried old, hard wind affected snow in exposed areas as well as sun crusts or dry facets in sheltered terrain.A crust/surface hoar layer buried mid-January is now roughly 80-140 cm below the surface, and still has the potential to be triggered from a thin snowpack spot, or with a large trigger like cornice fall.Facets at the base of the snowpack could also possibly be triggered from shallow snowpack areas.

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.