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

Feb 18th, 2012–Feb 19th, 2012

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

Regions

South Coast.

Confidence

Good

Weather Forecast

Sunday: Trace amounts of snow with some clearing / light northwest winds / freezing level @ 900m Monday: trace amounts of snow / moderate westerly winds / freezing level @ 900m Tuesday: some clearing / strong northwest winds / freezing level @ 1100m

Avalanche Summary

No new avalanche activity has been reported.

Snowpack Summary

Light amounts of recently fallen snow (up to 30cm in the Coquihalla) sit over an assortment of old snow surfaces. These surfaces include melt-freeze crusts on all aspects below 1700m and on steep solar aspects higher up, old wind slabs and surface facets on northern aspects where colder temperatures have persisted. Sandwiched between the old surfaces and the more recent snow may be buried surface hoar. The surface hoar seems to be most prominent at treeline and below and is most likely to be found in the north and central parts of the region. At this point there isn't enough of an overlying slab to create reactivity on the surface hoar layer, but it is a layer to monitor as more snow accumulates. In general the mid and lower snowpack are strong and well settled.

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.