Bollettino valanghe

Mount Shasta

Mount Shasta Avalanche Center
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Pericolo valanghe

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

In sintesi

Today, the last of a series of smaller storms will impact the forecast area, bringing 4–8 inches of fresh snow. Heightened avalanche danger will persist as the new snow is quickly transported into growing wind slabs. Human triggered avalanches are likely near and above treeline. Travel with caution, assess leeward aspects (W-NW-N-NE-E) for signs of wind slab instability, as these slabs do have the potential to bury you. 

Problemi valanghivi

  • Wind Slabs

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

    Expect to find wind slab development on W-NW-N-NE-E aspects. The recent strong winds likely developed unusual loading patterns, depositing wind-drifted snow lower on slopes than expected, and concentrating around terrain features like convexities, and rock outcrops. Slabs could break a few feet deep, and be reactive to skis. This morning, with the recent new snow, these wind slabs could be quite touchy, running easily on the surface crust of the old snow. If triggered, these avalanches have the potential to bury and/or kill you. Avoid this problem by assessing leeward avalanche terrain with caution, or not traveling in the terrain altogether.

Avalanche Discussion

Yesterday, forecasters assessed wind slab instability along Green Butte Ridge and Avalanche Gulch. Wind slab development was obvious on northerly aspects at all elevations, showing reactivity to ski cuts. Above treeline, surface conditions were variable including wind board, sastrugi, old surface crusts, and wind drifts. In Avalanche Gulch proper, the protected nature of the drainage provided far better ski conditions. Check the observation out HERE. 

After tonight's system, high pressure will build for the remainder of the week.

The Everitt Memorial Highway is OPEN. Castle Lake road is still closed.

Regioni coperte