Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2
6" of new, low density snow will be easily transported by increasing SW winds today. Be on the lookout for shallow, fresh slabs of wind drifted snow forming on the leeward sides of ridge crests and terrain features in upper elevation, wind exposed terrain.
Last week's series of heavy snowfall and strong winds built thick cohesive slabs of snow on Northerly facing slopes in the alpine. The older slabs are becoming harder to trigger, but it remains possible for a skier or rider to find a piece of snow that will be sensitive to their weight. This is somewhat complicated by the new snow that fell Sunday night and has covered up these older, deeper drifts making them hard to detect. Likely trigger points include steep convexities, or blind break-overs. If triggered, these avalanches can be up to three feet deep.