Reactive wind slabs can be found on all aspects
Small avalanches may step down to weak layers, producing larger avalanches than you may expect.
Watch for wind loading near ridgelines, and in features like cross-loaded gullies or ribs
The most reactive slabs will likely form on north/east facing slopes. Old slabs on other aspects may remain triggerable as they sit over weak layers
Weak sugary facets or surface hoar on a hard crust could still be human-triggerable, most likely in north facing terrain features where facets are most easily preserved.
Natural wind slab activity continues to be reported, along with natural persistent slabs to size 1.5 in below treeline areas near Ningunsaw.
We expect natural activity to taper off, but human triggering still remains possible.
20-50 cm of recent, wind-affected snow sits over a variety of weak surfaces including facets, or surface hoar over a crust in sheltered areas - all of which will be slow to bond.
Another layer of weak, faceted crystals and a crust are buried 40-70 cm deep. Check out this MIN for a great snowpack summary from Hankin on Tuesday.
The lower snowpack is generally well-bonded and strong.
Wednesday Night
Partly cloudy. 20-30 km/h southwest ridgetop wind. Treeline temperature -18 °C. Isolated flurries possible.
Thursday
Partly cloudy with possible flurries. 30-40 km/h southeast ridgetop wind. Treeline temperatures vary from -8 °C in the south, to -12 °C in the north.
Friday
Partly cloudy with possible flurries. 30-50 km/h southeast ridgetop wind. Treeline temperatures around -10 °C.
Saturday
Partly cloudy with possible flurries. 30 km/h southeast ridgetop wind. Treeline temperatures around -15 °C.
More details can be found in the Mountain Weather Forecast.
