Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Wind slabs will range in size and sensitivity today and may be present on all aspects. Increasing winds could lead to modest amounts of blowing snow and fresh deposits in leeward catchment zones near and above treeline today. While newly formed wind slabs will be more sensitive to human triggers, they are most likely to be small in size. Conversely, older, more sizable deposits have likely become stubborn and will be more difficult to trigger. An incoming storm that will bring new snow to the region in the late afternoon is adding complexity to the situation today. It will be crucial to conduct your own localized assessments. Be on the lookout for blowing snow, large drifts of hollow, upside-down feeling snow, and uneven snow surfaces. These are all clues that indicate nearby wind deposits. Be suspect of terrain features that encourage drifting, such as the leeward sides of ridgelines, alpine couloirs, gully features, and cross-loaded depressions. Be ready for wind slabs to increase in size and sensitivity quickly as new snow is added to the mix today. Keep in mind that even a relatively small piece of unstable snow can have elevated consequences in exposed or extreme terrain.
(3/23/2024) Photo: Clancy Nelson