Banner Summit
Avalanche danger
Highlights
You are unlikely to trigger avalanches large enough to bury people. You could trigger relatively small avalanches where the wind has formed drifts or stiffened the snow surface. These thin, isolated slabs are most common near ridgelines at upper elevations.
Avalanche Discussion
Monday and Tuesday's snowfall and northerly winds may have formed some stiff, isolated drifts and slabs in exposed terrain. Look for wind-blown snow immediately below exposed ridgelines, on the sides of gullies or chutes, and near large terrain features. The slabs will probably not extend very far downslope, but they could overlie weak facets or crusts—especially on SE-S-SW aspects—and may be more sensitive to triggering than you might expect. Yesterday in the Sawtooths, I observed a wind slab avalanche that stepped down to one of these deeper weak layers (report). Managing this problem is relatively simple. Steer clear of recent wind drifts and slabs on slopes steeper than about 35 degrees.
LOW danger is not an excuse to throw caution to the wind. Even small avalanches can ruin your day in complex, high-consequence terrain. Before committing to skiing or riding that steep, beautiful-looking line, think about where an avalanche could carry you. Could you get pushed over cliffs, through trees, or into a creek or gully? Slopes with these terrain traps are inherently more dangerous than open slopes with a clean runout.