Loose Wet
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 1
A decent to strong snow surface refreeze is expected to have occurred last night from radiational cooling under clear skies despite above freezing overnight air temperatures in many locations. With the April 15-16 storm snow having now gone through melt-freeze in nearly all locations, loose wet avalanche problems are expected to be less widespread today than yesterday. That said, loose wet avalanches could still be triggered by those venturing into steep terrain today while the snow surface is in melt phase. As daytime warming and snow surface melt progresses, loose wet avalanches will become possible on all aspects at all elevations. Avalanche size up to D2 is possible (large enough to bury or injure a person).
Monitor snow surface conditions as the day progresses. Pay attention to supportability of melt-freeze crust at the snow surface. Once melt makes this crust marginally supportable to unsupportable, loose wet avalanches are possible. With the top foot of the snowpack becoming less transitional with every melt-freeze cycle, roller balls will become less prominent as a sign of potentially unstable snow and a loss of supportability will be the primary indicator of potential instability. Avoid travel in or below avalanche terrain on slopes with marginally supportable to unsupportable wet snow conditions or on slopes where roller balls are occurring.