Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–2
Avalanche forecast
View on mapNorthern San Juan
Colorado Avalanche Information Center
Avalanche danger
Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
Out of date — this forecast expired last year. You’re viewing past conditions, not the current bulletin.
Avalanche problems
Persistent Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–2.5
Avalanche Summary
You can trigger an avalanche where new snow and strong winds form thick, cohesive slabs on lee slopes. Avalanches will be larger and more dangerous on slopes where wind drifts are deeper and on slopes that face west to north through east, which harbor buried weak layers in the upper snowpack.
Cracking in the new snow, natural avalanches on similar slopes, or collapsing are all signs of instability and indicators to move to a lower angle slope. You can find safer travel on slopes protected from the wind and on slopes less than about 30 degrees steep.