Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Avalanche forecast
View on mapSouthern San Juan
Colorado Avalanche Information Center
Avalanche danger
Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Out of date — this forecast expired 3 years ago. You’re viewing past conditions, not the current bulletin.
Avalanche problems
Avalanche Summary
The most problematic slopes are northerly and east-facing near and above treeline where a cohesive slab of snow sits on top of very weak snow near the ground. An avalanche triggered in a wind-drifted area may break wider across the slope and deeper than you expect. The most dangerous spots look filled-in, rounded, or pillow-shaped below ridgelines and in gullies. Take note of recent avalanche activity and signs of unstable snow like cracking and audible collapses, as an indicator of which slopes to avoid. Safer travel options exist on southerly-facing terrain or slopes less than about 30 degrees in steepness.