Avalanche forecast

Mount Shasta

Mount Shasta Avalanche Center
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Avalanche danger

Wed
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low
Out of date — this forecast expired 7 months ago. You’re viewing past conditions, not the current bulletin.

Highlights

A generally stable snowpack pervades the forecast area. Exercise caution on steep solar aspects where surface snow may be losing cohesion due to melt and around previous wind drifts in Shasta's most alpine terrain. Climbers, be prepared for variable surfaces, weather, and overhead hazard.

Avalanche Discussion

General caution is advised. While avalanche activity is unlikely, it is not impossible. Continue to observe and evaluate conditions as you travel. In days prior, softening snow due to surface melt has been noted, especially on steep, solar aspects over 40 degrees near rocky outcroppings. With warm daytime temperatures and a continued lack of subfreezing temperatures overnight, it’s uncertain when the snowpack may begin to lose cohesion. Stay alert for signs of instability like natural or triggered rollerballs and point releases.

It's been over five days since the previous wind event that formed fresh wind drifts. Any remaining wind slabs are small and becoming increasingly difficult to trigger. The most common place to encounter them are in pockets amongst Mount Shasta's most alpine terrain. Assess for cracking in lens shaped, wind-textured snow. Be prepared to adjust plans or move around these areas if needed. Snow surfaces are highly variable, comprised of a hazardous patchwork of crusts, wind-affected snow, and soft, drier snow in isolated areas.

For any climbers, despite the sunny skies, winter conditions are still the norm and significantly increase the level of risk traveling on the upper mountain. Without adequate preparation, seemingly minor incidents can become major ones. Many high elevation terrain features, including the West Face, Casaval Ridge, the Trinity Chutes, Red Banks, Green Butte Ridge, and Sargents Ridge are coated in thick, hard ice that could shed at any time. Minimize your exposure beneath them. A full mountaineering kit is required: 12-point crampons (NOT microspikes), ice axe, and helmet, and the skills to use them proficiently. A $25 Summit Pass is available at the Mount Shasta Ranger Station or for purchase by cash or card at Bunny Flat.

Bunny Flat remains the best access for winter recreation and climbing.  All motorized users, please park below the restroom facility at Bunny Flat. Respect riding boundaries. Maps are available HERE or at the trailhead. Check out our observations page for more details on recent conditions from around the forecast zone.

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