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
Sun
Mon
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
Out of date — this forecast expired 8 months ago. You’re viewing past conditions, not the current bulletin.
Avalanche problems
Wind Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
Avalanche Summary
A few inches of snow and northerly wind increase your chances of triggering avalanches in wind-drifted snow above treeline. The most dangerous places are where you find 8" or more of cohesive drifted snow forming a slab on steep alpine slopes. Look for and avoid fresh and firm lens-shaped drifts below ridgelines and in gullies. Cracking in the snow surface is a sign that the drifted snow has formed a slab, and a good indication to avoid steep slopes.
Safer travel can be found at lower elevations out of the wind.