Avalanche Forecast

Archived

Jan 7th, 2020–Jan 8th, 2020

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches possible, human triggered probable.

Below Treeline

Natural avalanches unlikely, human triggered possible.

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely, human triggered possible.

Regions

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A fresh round of snow is following a significant natural avalanche cycle. Dangerous avalanche conditions will continue, especially near Paradise where the highest snowfall totals are expected. Travel cautiously sticking to lower angle terrain and evaluate the bond between new and old snow.

Discussion

There’s quite a bit of variability in the West-South zone. Paradise received over 5 inches of water, mostly as snow, in the last 48 hours. While Crystal and White Pass received around 1.5 inches of snow water equivalent. A natural avalanche cycle Monday helped stabilize conditions, but new snow will continue to test the snowpack.

Snowpack Discussion

New Regional Synopsis coming soon. We update the Regional Synopsis every Thursday at 6 pm.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.