Turnagain Pass Avalanche Forecast

Dense slabs are spread across the forecast zone.  These slabs are strong and can support a lot of weight.  Underlying these slabs are a variety of weak layers.  The most widespread of these layers is buried surface hoar, roughly 2’ down and found above 2,500’.  We currently have a snowpack structure that shows some potential for slab avalanches.

On the plus side the strength of the slab in most areas is high, making it difficult to trigger an avalanche.  Time and settling has allowed the buried weak layers to adjust to the slabs resting over them.  While the likelihood of triggering an avalanche is on the low end of the scale, our tests continue to show us that propagation is still possible across slopes.

The best way to stay out of trouble today is to avoid suspected trigger points.  These points are found on steep (>40 degree) rollovers and in areas where the snow is shallow.  It is in these areas where it is easier for a person or group to impact the weak layer.

Dense wind slabs formed over the early part of this past week.  These slabs (4-10″ thick) are generally well bonded to the surfaces below.  However, it is worth keeping an eye out for the occasional pocket of stiff old wind slab, especially in very steep terrain.  Jumping on steep rollovers on small test slopes is the best way to assess this avalanche concern.  If venturing into more committing terrain, have an escape route in mind before moving over these slabs and be ready to ski or ride off of them.

With navigating around both of these avalanche concerns, continue to practice good travel habits.  In steep terrain expose only one person at a time.  Use islands of safety for re grouping.  Have escape routes planned should an avalanche occur.  Have a plan and communicate well within your group.  Be mindful of and minimize exposure to groups below you.