Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1
West winds plus a few inches of new snow have formed shallow soft slabs of wind drifted snow at upper elevations. You may find a few of these wind slabs at mid and low elevations where they likely bonded to the warm and wet snow surface. If you're headed to high peaks and more extreme terrain today, these wind slabs may be small, but they can be a major threat because they can knock you off your feet and cause a fall. Heads up - The snow was either damp from warm temperatures which were near freezing overnight at 10,000 ft or it was damp as a little rain fell at the onset of precipitation. As air temperatures quickly cool this morning (they have dropped about 10 degrees in the last several hours), a strong temperature gradient could form some very small facets just under the new snow. I mention this possibility because it means that any wind slabs could remain unstable for a number of days this week. I was caught in an avalanche from this exact situation years ago on May 1st on a high elevation north facing slope at the top of a couloir.