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 17th, 2012–Feb 18th, 2012

Alpine
Natural avalanches possible, human triggered probable.
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

Sea To Sky.

Confidence

Fair - Forecast snowfall amounts are uncertain on Friday

Weather Forecast

Saturday: light accumulations of new snow / moderate southeasterly winds becoming light throughout the day / freezing level @ 1000m Sunday: trace amounts of snowfall / light to moderate northwesterly winds / freezing level @ 700m Monday: light snowfall / strong westerly winds / freezing level @ 1000m

Avalanche Summary

Fairly widespread wind slab activity is expected with strong winds and moderate snowfall forecast for Friday night.

Snowpack Summary

Moderate snowfall and strong winds forecast for Friday night will create new wind slabs and continue to bury an assortment of old snow surfaces including crusts and surface facets. The crusts exist on all aspects at lower elevations and on steep solar aspects higher up. Surface facets have grown particularly on northern aspects where colder temperatures have persisted. Facets may also exist in combination with crusts. The mid and lower snowpack are strong and well settled. The average treeline snowpack depth is about 240cm.

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.