Wind Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely
- Größe
- 1–1.5
Between 4000 and 5500 feet, expect to find wind slabs that are variable in size and location. The most likely place to find a wind slab is on steep south west, south and south east aspects where steep terrain features provide ample protection from the wind. The largest wind slabs will be found on direct south aspects, up to 2 feet thick, generally small in area, and will feel firm underfoot. They will likely be too stiff to give any clear signs of instability as you travel, steering clear of convex rollovers and steep unsupported pillows of snow can help increase your margins of triggering a slide.
Identify the new slabs from the snowback bed surface using a ski pole or an ice axe. The old bed surface will be very firm, almost icy and you won’t easily push a ski pole through the surface. The new slabs are wind impacted and also firm, but an inverted ski pole can be pushed through the snow with a little force. Traveling on the old, crusty snow surface can greatly help to avoid the avalanche problem today.
Skier triggered avalanche in Oakes Gulf Main Gully yesterday. 2/5/24