Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–2
Weak layers that formed during an extended dry spell in January and February had been dormant until recently. Since March 8th, 20-25” of new snow fell in some parts of the forecast area. This snow combined with strong west and southwest winds helped to form slabs on stout crusts. Yesterday’s activity showed slabs running on these crusts but also stepping down to weak faceted layers deeper in the snowpack. Expect slab depths in the 1-2 foot range and be destructive enough to injure and bury riders.