Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Wind slabs may be triggerable at upper elevations where wind has transported dry snow into leeward terrain features. Wind-transported snow has also enlarged cornices recently.
Wind slabs likely remain triggerable in the alpine.
Wind slabs may be triggerable at upper elevations where wind has transported dry snow into leeward terrain features. Wind-transported snow has also enlarged cornices recently.
After a stormy and avalanchy week, by Friday reports of avalanche activity were limited to natural wind slabs size 1-1.5 out of north to east aspects in the alpine.
A moist upper snowpack up to 2000 m is refreezing into a crust. In the alpine, the refreeze may be slowed by overlying dry snow; as little as 10 cm near Smithers and and much as 50 cm near the coast. Below 1000 m, the fully rain-soaked snowpack is starting to refreeze.
A variety of previously concerning weak layers buried in January can be found 30 - 80 cm deep. These layers appear to be strengthening and are expected to continue to improve under the current cooling trend.
Saturday night
Clear. Northwest ridgetop wind 10-20 km/h. Treeline temperature around -12 °C.
Sunday
Sunny. Northwest to northeast ridgetop wind 10-20 km/h. Treeline temperature around -5 °C.
Monday
A mix of sun and cloud. East ridgetop wind 30-40 km/h. Treeline temperature around -6 °C.
Tuesday
A mix of sun and cloud. Southwest ridgetop wind <20 km/h. Treeline temperature around -6 °C.
More details can be found in the Mountain Weather Forecast.