Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 1–1.5
Avalanche forecast
View on mapNorthern San Juan
Colorado Avalanche Information Center
Avalanche danger
Fri
Sat
Alpine
1 · Low
Treeline
1 · Low
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Out of date — this forecast expired 3 years ago.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 majority of slopes don't harbor enough snow cover to produce an avalanche. The most likely place to trigger a small avalanche exist on northerly-facing slopes in the alpine. This is where cohesive slabs of snow sit above weak, early-season snow. Avoid steep gullies and rocky areas near ridgelines to help reduce an unexpected avalanche encounter. Going for a ride or being knocked off your feet can be dangerous with numerous natural obstacles immediately below the snow surface.
A strong winter storm begins impacting the San Juan Mountains early Friday lasting into Saturday evening. Expect periods of heavy snow, strong winds, snow accumulations of one to two feet, and a rise in the avalanche danger through the weekend.