Bollettino valanghe

Mount Shasta

Mount Shasta Avalanche Center
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Pericolo valanghe

Sat
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 5 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

It's been a steady trickle of new snow paired with productive wind over the past several days. Windy, exposed avalanche terrain near and above treeline is where backcountry users should use most caution today. Wind slabs on steep, leeward slopes could be human-triggered. 

The holiday weekend will bring a steady dose of cold temperatures, wind and snow. This morning we are in a lull between storms. Strong SW-W-NW wind will continue on and a decent spurt of precipitation will kick back in later this afternoon and evening. 

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Above 7,000 feet, the winter backcountry begins to feel much more winter-like: colder temps, dryer snow, stronger wind...and this is where one should use most caution in avalanche terrain. Southwesterly flow over the past couple days has likely formed wind slabs along ridges and bowls. We had one natural hard slab avalanche observed off Green Butte Ridge, sliding into Avalanche Gulch earlier this week. Pay attention to wind blowing snow and note where it's going. Mount Shasta can also create funky wind loading patterns due to the sheer size and shape, so again, pay attention to the subtleties of wind, snow and slope aspect. Some slopes can get cross-loaded. During strong wind events, wind can deposit snow further down the slope than normal. Test for wind slabs by stomping on wind drifts and roll-overs in safe terrain. If you see blocking or shooting cracks, then wind slabs may be forming in terrain near you.

Avalanche Discussion

  • The Everitt Memorial Highway is OPEN
  • Sand Flat Winter Cross-Country Ski Trails are OPEN
  • Castle Lake road is CLOSED
  • Pilgrim Creek and Deer Mountain snowmobile parks are OPEN

Regioni coperte