Wind 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
Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
2 · Moderate
Out of date — this forecast expired 4 years ago. You’re viewing past conditions, not the current bulletin.
Avalanche problems
Storm Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
Avalanche Summary
Heavy snow and strong winds forming dense slabs onto a weak, early-season snowpack is the perfect recipe to trigger a large avalanche. Northerly-facing slopes near and above treeline harbor a thick layer of old, faceted snow below the new snow, and where you will find the most dangerous conditions. Look for and avoid smooth-rounded pillows of drifted snow adjacent to ridgelines and in steep gullies. Steer clear of slopes where you observe cracking in the snow surface or hear audible collapses.
The rise in avalanche danger works its way down in elevation as the storm plays out. Lower-angled or southerly-facing slopes offer safer travel options.