Avalanche Forecast
Regions: Little Yoho.
Weather Forecast
Thursday will see temperatures near 0C at valley bottom and around -10C at 3000m. W winds will increase in the afternoon into the moderate range at 3000m with no new snow expected. There could be increased solar input especially in the E with less cloud cover. A big warmup is predicted next week which will be something to watch out for.
Snowpack Summary
15-30cm recent low density snow over previously wind blown surfaces in the alpine, and 30-50cm of facets below. In little Yoho the snowpack is generally thicker and settled, except for thin areas which have facets to ground. Steep areas continue to produce sluffing in many areas with buried suncrust on steep S aspects.
Avalanche Summary
Avalanche control today in Yoho confirms the combination of smaller (size 2) wind slabs entraining facets producing avalanches that run far for their mass. Slides to size 3 were produced on Mount Field and Bosworth where they entrained facets, and only produced smaller slides where they did not. Other areas out E have far less activity.
Confidence
Avalanche Problems
Wind Slabs
Aspects: North, North East, East, South East, South, North West.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 2
Loose Dry
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Likely
Expected Size: 1 - 3