Wet Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
All of our forecast areas have had several consecutive days of above-freezing temperatures, meaning snow is settling quickly, and liquid water may start running through the snowpack. With all of the crusts and weak layers that exist in our snowpack, we have the structure to potentially see large or very large wet slab avalanches.
Wet slab avalanches are notoriously destructive and difficult to forecast. While the chance of triggering such an avalanche may be low, the consequence would likely be catastrophic. Be particularly cautious on sun-affected slopes or very steep slopes with rock outcropings, and if you see roller-balls, signs of recent avalanches, or find yourself sinking into wet, unconsolidated snow, move to lower-angle terrain until temps drop and the snowpack can stabilize.
As the temps stay high, you should also be wary of wet-loose avalanches and cornice fall, both of which could be large and destructive today. Avoid travelling on or below very steep, rocky terrain where wet-loose avalanches are most likely, and give cornices a wide margin. Be careful along ridgelines where cornices have formed, as they can break further back than expected, and limit the time you spend on slopes adjacent to or below them.
(3/19/2026) Photo: Caleb Merrill