Loose Wet
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
As rain begins to fall on a well-beaten-up snowpack, start thinking about wet loose avalanches in steep terrain. These shouldn’t be big or widespread, but rain-on-snow can be a heads-up situation - especially in those upper elevation areas that may still hold small amounts of dry snow or where the surface crust is thin. You may find these to be more prominent closer to the Cascade Crest, where more rain will fall. Fresh rollerballs and deep boot penetrations are signs that wet loose avalanches could be triggered on steep terrain. While this problem is often considered to be more manageable, don't be complacent in steep, complex terrain where a small avalanche could push you off your feet or sled.
(2/6/2026)
An example of a small wet loose avalanche in the White Pass backcountry on Friday. This one appears to be only a few inches deep, running on a crust surface below.
Photo: Northwest Avalanche Center