Avalanche forecast

Eastside Region

Eastern Sierra Avalanche Center
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Avalanche danger

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Out of date — this forecast expired 2 years ago.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

Highlights

Wind slabs ranging in size and sensitivity may be found on all aspects today, particularly at upper elevations. Hazard is expected to rise quickly this afternoon as a storm system impacts the forecast area. Localized assessments and flexible field plans will help you minimize your exposure today.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Wind slabs will range in size and sensitivity today and may be present on all aspects. Increasing winds could lead to modest amounts of blowing snow and fresh deposits in leeward catchment zones near and above treeline today. While newly formed wind slabs will be more sensitive to human triggers, they are most likely to be small in size. Conversely, older, more sizable deposits have likely become stubborn and will be more difficult to trigger.  An incoming storm that will bring new snow to the region in the late afternoon is adding complexity to the situation today. It will be crucial to conduct your own localized assessments.  Be on the lookout for blowing snow, large drifts of hollow, upside-down feeling snow, and uneven snow surfaces. These are all clues that indicate nearby wind deposits. Be suspect of terrain features that encourage drifting, such as the leeward sides of ridgelines, alpine couloirs, gully features, and cross-loaded depressions. Be ready for wind slabs to increase in size and sensitivity quickly as new snow is added to the mix today. Keep in mind that even a relatively small piece of unstable snow can have elevated consequences in exposed or extreme terrain.

    (3/23/2024) Photo: Clancy Nelson

Avalanche Discussion

Spring is a time of transition and can lead to highly dynamic weather and avalanche conditions. It will be important to conduct your own localized assessments today and be ready for changing conditions. Increasing winds are likely to redistribute snow during the day today, and avalanche hazards will rise quickly this afternoon as a winter-like storm system impacts the region. It is always a good idea to build options into your field plan and be ready to adjust as conditions change.

Beyond the avalanche concerns, there are several other considerations for backcountry travelers. Variable surface conditions should be expected. Solar inputs have impacted snow surfaces at lower elevations and on solar aspects over the last few days. While increasing winds will likely keep loose wet hazards from becoming concerning today, you can expect to find a variety of crusts and hard or punchy surfaces throughout the range. Tools like boot and/or ski crampons and an ice ax may be necessary equipment depending on where you wish to travel.

Regions covered