Bollettino valanghe

Bollettino valanghe

Payette Avalanche Center
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Pericolo valanghe

Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
Non aggiornato — questo bollettino è scaduto 3 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Loose avalanches are likely today in terrain steeper than 30 degrees. Dry loose avalanches will be found on shaded aspects of the compass and E-facing slopes this morning. Wet loose avalanches are likely today on SE, S, and SW-facing slopes. It's possible to encounter lingering wind slabs from the recent storm.

Today's avalanche forecast is sponsored by Brundage Mountain Resort

Problemi valanghivi

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–1.5

    12-20" of recent storm snow will see full sunshine for the first time today. Dry loose avalanches began shedding yesterday in steep terrain. Expect that theme to continue today. The upper 6-12" of recent snow is light and soft. Beneath that, the snow is denser and more consolidated. Expect this upper snow to be able to move with you in terrain steeper than 30 degrees. Although dry loose avalanches (sluffs) may not be large enough to bury a person, they could certainly knock you off your feet or bump you and your machine of course.

    Be prepared to manage loose snow today and pay attention to terrain traps. Gullies or depressions are places where loose snow can funnel and pile up. Terrain traps also include exposed areas like cliffs, rocks, and steep terrain that funnels into trees. If you plan to enter steep, consequential terrain, ask yourself, "If I get knocked off my feet or machine, where will I end up?"

    (2/16/2024) View of avalanches from Brundage looking at S aspect of Sargents Photo: Michael Fitzgerald

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–1.5

    As daytime heating increases with solar radiation, expect to see wet loose avalanches on solar aspects. Small, loose avalanches will start on the eastern side of the compass this morning. These may begin as dry loose, but will become wet throughout the day. Expect the upper 6-12" of snow to be able to move in terrain steeper than 30 degrees.

    The photo to the right shows 30 cm (12") of new snow resting on a thin crust. New snow getting moist atop a crust is a recipe for wet loose avalanches. Similar to the problem listed above, managing the terrain you're in is the best way to manage this problem. Pay attention to terrain traps today.

    (2/16/2024) Photo: Kevin Studley

Avalanche Discussion

NEW SNOW PROBLEMS

The mountains received 12-20" of new snow from the recent storm cycle. The southern end of our forecast zone was favored and snow totals and winds were highest there. As you venture out in the mountains this weekend (after you read the avalanche forecast, of course), plan to have a discussion with your travel partners about which avalanche problems you may encounter. Loose snow is the primary concern today. Don't rule out any lingering pockets of wind slab from the recent storm. Pay attention to the snow conditions and the terrain. Today is a good day to be talking about terrain traps. Gullies, depressions or thick trees at the bottom of a steep slope, cliffs, and rocks. These all are examples of different types of terrain traps that could get you into trouble with today's avalanche problems. Managing terrain is the best way to manage and avoid certain terrain traps.

Every observation submission gets entered into the FPAC monthly raffle. If you submit an observation, you could win some great prizes courtesy of the FPAC. We've only had two submissions from motorized users this season. (The odds are stacked in your favor to win a prize for the motorized raffle). Tell us what you're seeing when you're out riding in the mountains. Observations can greatly improve information for avalanche forecasts.