Storm 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
Sun
Mon
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
Out of date — this forecast expired last year.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
- 2–3
Avalanche Summary
You can trigger large and dangerous avalanches where recent snow accompanied by strong winds have formed cohesive slabs over weak layers. Avalanches will be larger where winds have drifted snow into deeper slabs on lee slopes. Cracking in the snow surface, collapsing, or avalanches on similar slopes are obvious signs of instability and a sign to move to lower-angle terrain.
On west-to-northwest through east-facing slopes, avalanches in the new snow could step down into buried weak layers, triggering a slide that would break deeper and wider.
You can find safer travel on slopes less than about 30 degrees and areas protected from the wind.