Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–3
The clouds lifted today and multiple wide-propagating natural slides, D2-D3, were seen on N-NE-NW aspects in the transitional zone. Surface conditions looked heavily wind affected with visual clues of wind slabs (convex pillows of snow on lee side of ridges and other terrain features.) Dec. 10-14th snow water equivalent (SWE) was 5.5" in the Transitional Zone and 3" in the Chilkat Pass Zone. 8' wind drifts were reported on the pass, which has remained closed for several days. Wallowing conditions were reported in the field. Snow is still consolidating.
(12/16/2023)
Wind affected Old Faithful shoulder and a D2.5-3 avalanche