Avalanche Forecast

Moderate

On Monday, several small to large (size 1-2) natural and rider triggered avalanches were reported. Wind slab and dry loose avalanches in steep alpine terrain were the most common, but some occurred below ridgetops or convex rolls at lower elevations.

Over the weekend, a couple riders were surprised by windslab avalanches below treeline.

As moderate atypical winds continue from the north and east, reactive wind slabs may continue to form on south and west aspects.

Recent variable winds mean that wind slab could be found on all aspects. Expect to find loose, sugary snow (facets) underneath these wind slabs, or on the surface in sheltered areas.

In sheltered areas, about 20 to 40 cm of recent snow overlies a layer of surface hoar and a crust below 1700 m.  

Near Stewart and Ningunsaw, a poorly-bonded crust about 100 cm deep may act as a weak layer.

Elsewhere, the remainder of the snowpack is reportedly strong with various hard crusts.

Tuesday Night

Clear. No new snow expected. Moderate northeast ridgetop wind. Treeline low around -12 °C.

Wednesday

Sunny. No new snow expected. Moderate east ridgetop wind. Treeline temperature falling to around -16° C.

Thursday

Mostly sunny. No new snow expected. Moderate east or southeast ridgetop wind. Treeline temperature around -16 °C.

Friday

Mostly cloudy. Trace of snow expected. Moderate southeast ridgetop wind. Treeline temperature around -11 °C with possible temperature inversion.

More details can be found in the Mountain Weather Forecast.

• Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
• Wind slabs may be poorly bonded to the underlying crust.
• Seek out sheltered terrain where new snow hasn't been wind-affected.
• Recent wind has varied in direction so watch for wind slabs on all aspects.