Bonnington

New snow may not bond well to old crusts.

If you see greater than 20 cm of new snow, the danger rating is one step higher.

Several small wet loose avalanches occurred on Tuesday out of steep slopes in the afternoon sun.

Several large (size 2) skier-accidental and skier-controlled storm slab avalanches occurred on Monday east of New Denver.

15 to 25 cm of recent snow overlies predominantly crusty surfaces, except for northerly aspects at upper elevations.

A layer of surface hoar is buried 30-60 cm in isolated, sheltered areas at treeline.

A widespread crust with sugary facets above is buried 80-180 cm deep. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the places where it may still be possible to trigger this layer.

However, when a thick surface crust is present, human triggering this layer is unlikely.

Wednesday Night

Cloudy with 5 to 10 cm of snow. 15 to 25 km/h south ridgetop wind.  Treeline temperature -4 °C.

Thursday

Mostly cloudy with up to 5 cm of snow. 20 km/h southwest ridgetop wind.  Treeline temperature -4 °C. Freezing level 1700 m.

Mostly cloudy with 5 to 10 cm of snow. 20 km/h south ridgetop wind.  Treeline temperature -4 °C. Freezing level 1700 m.

Mostly clear skies with up to 2 cm of snow. 10 km/h north ridgetop wind.  Treeline temperature -4 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

• Investigate the bond of the recent snow before committing to your line.
• Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.