Bollettino valanghe

Glacier

Apr 8 – 9, 2022
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Archiviato · scaduto 4 years ago

Pericolo valanghe

Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Cool temps will set up the snowpack for fast and firm conditions at lower elevations, but good skiing can still be found on high north aspects.

Watch for pockets of wind slab as you enter your line.

Problemi valanghivi

  • Wind Slabs

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

    New snow and moderate winds have built fresh pockets of slab in alpine lees. These are burying old wind/storm slabs from earlier in the week.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    1.5–3.5

    The March 31 crust is down 30-70 cm, and was reactive to skier triggering locally early in the week.

    The March 31st and Dec 1st crust (near the base of the snowpack) have been producing sporadic large to very large natural avalanches nearby recently.

Weather Forecast

Unsettled weather in the wake of Friday's cold front.

Tonight: Scattered flurries (5cm), Alpine low -10*C, Strong Westerly ridgetop wind

Saturday: Sunny periods, High -9*C, Freezing level (FZL) 1000m, Moderate W wind

Sun: Sunny periods/isolated flurries, Low -12*C, High -9*C, FZL 900m, Light NW wind

Mon: Sunny periods, Low -12*C, High -8*C, FZL 900m.

Snowpack Summary

Below treeline the spring snowpack has undergone several melt-freeze cycles.

At upper elevations a dusting of new snow (up to 10cm) overlies a crust on most aspects, except N'rly alpine slopes where it's on settled dry snow.

Persistent crust layers from late March, and the deep persistent Dec 1st crust, may awaken with very large triggers/cornices.

Avalanche Summary

Neighboring operations continue to see sporadic very large avalanches failing on persistent/deep persistent crust layers.

Glide cracks have been on the move lately, with a size 3 glide slab avalanche from a S aspect of Mt. Tupper on Friday, and another size 3 glide slab from the S side of Cheops on Wednesday.

Confidence

The weather pattern is stable

Regioni coperte