Mount Shasta

Avalanche danger remains low. Come prepared to arrest a fall if traveling on steep snow-covered slopes. Assess any lingering pockets of wind slab in the highest terrain on Mount Shasta and watch for isolated wet snow instability on solar aspects around rocky areas near and below treeline.

Climbing: Despite the spring-like weather at lower elevations, it’s still winter high on Mount Shasta. An ascent this time of year is significantly riskier than that of spring and requires a higher experience level. Extreme winds with frigid wind chills are forecast on the upper mountain today and through the work week. Expect variable snow surfaces, including firm slide-for-life conditions. Remain vigilant for shedding rocks and icefall. A full mountaineering kit is essential: 12-point crampons (NOT microspikes), ice axe, and helmet, and the skills to use them proficiently. Please refer to the Climbing Advisory page for more information about climbing Mount Shasta. 

On Mount Shasta, isolated pockets of wind slab may linger from days prior in extreme terrain beneath prominent ridgelines and around rock outcrops. These drifts could be difficult to assess without exposing yourself to the hazard. For that reason, consider moving around these areas. Extreme northwest winds were seen pluming snow yesterday on the north side of the mountain. Evaluate any new drifts for signs of instability like shooting cracks. Even a small slide can have serious consequences.

We have not observed significant signs of wet snow instability in recent days.  If the problem exists, it is most probable during the latter half of the day on steep, solar aspects over 35 degrees around rock outcroppings. Watch these areas for rollerballs or ankle-deep boot penetration into wet snow.