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

Nov 21st, 2014–Nov 22nd, 2014

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

Regions

South Rockies.

This bulletin was produced using very limited field data. If you've been playing in the snow, please send your observations to [email protected].

Confidence

Poor - Due to the number of field observations

Weather Forecast

Overview: Light flurries may persist on Saturday. By Sunday, a weak ridge will develop bringing mainly sunny skies and a cool northwesterly flow.Friday night and Saturday: Up to 10 cm of new snow on Friday night tapering to light flurries on Saturday / Moderate to strong southwest winds overnight Friday becoming light on Saturday / Freezing level at about 1100mSunday: A mix of sun and cloud / Freezing level at valley bottom / Light northwest windsMonday: Light snowfall / Moderate to strong southwest winds / Freezing level at about 1100m

Avalanche Summary

No avalanches have been reported. With snowfall and wind forecast for Friday night, we may see a round of wind slab activity in pockets of high elevation terrain.

Snowpack Summary

Welcome to winter! As we begin our forecasting season we are working with very limited field data. If you`ve been playing in the snow, please tell us what you`ve seen by sending your observations to [email protected] reports indicate there is currently not enough snow to ski or ride at treeline and below. Pockets of skiable terrain exist in the alpine, although access to these areas will likely be a challenge and many early season hazards exist. These pockets of high elevation terrain are the areas most likely to have an avalanche problem, especially as the new slab deepens with ongoing snowfall. Any new snow, which may exist as a wind slab, may have a poor bond with old surfaces (crusts, facets) which formed during the recent dry spell.

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.