Avalanche forecast

Mount Shasta

Mount Shasta Avalanche Center
View on map

Avalanche danger

Fri
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Open full map
Out of date — this forecast expired 2 years ago. You’re viewing past conditions, not the current bulletin.

Highlights

 Avalanche risk will crescendo into the weekend. A multi-day series of wintry storms will host ample fresh snow and strong wind. It's officially time to raise your avalanche awareness antenna. New snow and fresh wind drifts will rest on firm snow surfaces. Earthly objects still lurk. Keep your frown upside down by playing it safe in avalanche terrain. 

  

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    Wind drifts and slabs are forming in the new snow, resting on firm, older snow surfaces. Pay close attention to terrain with visible wind loading, especially on west, north, and east aspects near and above treeline. A few inches of new snow fell overnight, with winds blowing predominantly south to north at an average of 10 mph over the past 24 hours. Today, expect a few more inches of snow, with south/southwest winds increasing tonight and tomorrow. Avalanches are most likely near ridgelines and the tops of bowls, where wind concentrates snow. Watch for warning signs such as blowing snow, cracking, or collapsing in drifted areas. To minimize risk, stick to sheltered or wind-scoured terrain.

Avalanche Discussion

Winter has returned, bringing fresh snow and wind—and with it, increased avalanche hazard. Conditions should remain manageable today, but avalanche risk will rise in the coming days, particularly during or after the second storm system arriving Friday and Saturday. With many roads still closed, we expect riders to head to the Gray Butte zone near Mount Shasta Ski Park. Remember, this area is backcountry—uncontrolled and unpatrolled. Carry an avalanche beacon, shovel, and probe, and be cautious of avalanche paths on west, north, and east aspects. Avoid "casual day syndrome"—don’t let proximity to the resort or familiarity with the area lower your guard. Always ski with a partner, identify avalanche terrain, and know how to use your rescue gear. 

After a long dry spell since late November, the current snowpack is crusty and firm, with hidden hazards like rocks and logs just beneath the surface. Snow depths as of yesterday average 51 inches at treeline on Mount Shasta, 34 inches at Castle Lake, and 37 inches at Mount Eddy. Backcountry access remains difficult without a snowmobile, as Siskiyou County continues efforts to clear Everitt Memorial Highway. A reopening date has yet to be determined due to environmental challenges. 

This weekend’s storms will bring significant snowfall and strong winds, further increasing avalanche risks. Stay alert to how new snow bonds to the old base, monitor wind loading, and track total accumulation. 

When in doubt, use terrain to stay safe. If conditions feel uncertain, stick to in-bounds skiing at Mount Shasta Ski Park—and don’t drink and drive!

Regions covered