Wind slabs may be reactive to riders especially where they are sitting on a crust or a weak layer at treeline and above.
Recent winds have built slabs at and below ridgetops in atypical areas. These slabs are likely to be more reactive where they overlie a weak layer of surface hoar and/or a crust.
Isolated wind slab were reactive to skier traffic on Tuesday.
Pockets of wind slab may continue to be reactive to rider triggers, especially on southerly-facing slopes.
New snow up to 20 cm with moderate to strong northeast winds may have formed fresh wind slabs. The new low-density snow may show a poor bond to old snow surfaces including surface hoar, faceted snow and wind-pressed snow.
A crust up to 1900 m is found down 30-50 cm. In areas east of Quesnel and Williams Lake, reports say there is also a layer of surface hoar associated with the crust. This may also exist in sheltered alpine terrain features.
The midpack is reportedly well-settled and supportive.
Wednesday Night
Clear periods. Ridgetop wind 25 km/h from the east. Treeline temperatures near -19 C.
Thursday
A mix of sun and cloud. Ridgetop wind 20-25 km/h from the south and treeline temperatures near -8 C. Possible weak temperature inversion in the alpine.
Friday
New snow 5-10 cm. Ridgetop wind 25-35 km/h from the southwest. Treeline temperature -3 C.
Saturday
New snow 5-15 cm. Ridgetop winds light from the southwest. Treeline temperatures near -3 C. Freezing levels 1500 m.
More details can be found in the Mountain Weather Forecast.
