Use extra caution at treeline where surface hoar is more likely to be preserved.

Reports are coming in indicating that this layer is sensitive to human triggers.

Danger Ratings

AlpineModerateModerateTreelineConsiderableConsiderableBelow TreelineModerateModerate
Alpine
Moderate
Treeline
Considerable
Below Treeline
Moderate
Alpine
Considerable
Treeline
Considerable
Below Treeline
No Rating

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Problems

Avalanche Problem 1: Storm slab

What Elevation?
 Below treeline, Treeline, Alpine
Which Slopes?
 North, Northeast, East, Southeast, south, Southwest, West, Northwest
Chances of Avalanches?
 Very likely
Expected Size?
 Small - Large

New snow is forming rider triggerable storm slabs. The most reactive slabs will be found at treeline where surface hoar is most preserved.

Avalanche Summary

No recent avalanches have been reported in our region.

Consider supporting your backcountry community by submitting your own observation in a MIN report.

Snowpack Summary

Up to 30 cm of recent low density snow could have formed storm slab in the alpine and treeline on terrain features that are above threshold for avalanches. This new snow overlies large surface hoar in sheltered terrain.

At treeline, the height of snow ranges from approximately 60 to 90 cm. Below this elevation, snow height decreases drastically. The snowpack at all elevations is very shallow and contains many potential hazards just beneath the surface.

Weather Summary

Saturday Night

Partly cloudy with trace amounts of new snow expected, south alpine wind 25 to 40 km/h, treeline temperature -8°C.

Sunday

Mostly cloudy, up to 10 cm of new snow expected, southwest alpine wind 40 to 60 km/h, treeline temperature -6°C.

Monday

Mostly cloudy with up to 10 cm of new snow expected, southwest alpine wind 25 to 50 km/h, freezing level up to 1700 m.

Tuesday

Cloudy , 10 to 20 cm of new snow expected, south alpine wind 40 to 60 km/h, freezing level rising to 2100 m.

More details can be found in the Mountain Weather Forecast.

Confidence

Low

  • Uncertainty is due to the limited number of field observations.
  • We are confident the likelihood of avalanche will increase with the arrival of the forecast weather.
Danger Ratings Explained
Forecast Disclaimer

USE AT YOUR OWN RISK

Avalanche Canada's Public Avalanche Bulletin, and other information and services provided by Avalanche Canada, are intended for personal and recreational purposes only.

**THIS INFORMATION IS PROVIDED "AS IS" AND IN NO EVENT SHALL THE PROVIDERS BE LIABLE FOR ANY DAMAGES, INCLUDING, WITHOUT LIMITATION, DAMAGES RESULTING FROM DISCOMFORT, INJURY, OR DEATH, CLAIMS BY THIRD PARTIES OR FOR OTHER SIMILAR COSTS, OR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, ARISING OUT OF THE USE OF THE INFORMATION.**

The user acknowledges that it is impossible to accurately predict natural events such as avalanches in every instance, and uses the data in this bulletin with this always foremost in mind. The accuracy or reliability of the data is not guaranteed or warranted in any way and the Providers disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data.