Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 2–3
Avalanche forecast
View on mapSouthern San Juan
Colorado Avalanche Information Center
Avalanche danger
Sun
Mon
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
Out of date — this forecast expired 6 months ago. You’re viewing past conditions, not the current bulletin.
Avalanche problems
Storm Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Avalanche Summary
A Special Avalanche Advisory is in effect for the San Juan Mountains and La Plata Mountains. Feet of recent snow and strong winds have formed thick cohesive slabs above an unusually shallow and weak snowpack. Avalanche conditions will remain dangerous through the weekend. Careful planning and conservative terrain selection is essential for safe travel in backcountry avalanche terrain.
You can trigger an avalanche that fails on a buried weak layer over 4 feet deep in places. These avalanches will be large enough to bury or kill you. You may be able to trigger these avalanches from a distance or from below. You can also trigger an avalanche in recent storm snow. Stick to slopes less than about 30 degrees that are not located beneath steep slopes for safer travel options.