Boletín de aludes

Ogden

Utah Avalanche Center
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Peligro de aludes

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque
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Desactualizado: este boletín caducó 2 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Today, the avalanche danger is HIGH in upper-elevation terrain, and on mid-elevation northerly facing terrain. Avalanches may break 1'-3' deep and over 400' wide. Natural and human-triggered avalanches are likely. There is a CONSIDERABLE avalanche danger on mid elevation west and southerly-facing slopes, and there is a moderate danger on low elevation slopes.

Avoid traveling in avalanche terrain on any slope steeper than, connected to, or below a slope that is greater than 30° in steepness.

Problemas de aludes

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    3

    There is a weak layer of faceted snow now buried under the new storm snow. This weak snow has now been and will continue to be overloaded creating dangerous avalanche conditions. Avoid being on, underneath, or adjacent to slopes steeper than 30° in steepness. Avalanches involving PWLs can be triggered remotely (from a distance). Photo below showing cracking on Cutler Ridge, if you see signs of cracking or collapsing then avoid slopes steeper than or connected to slopes greater than 30° in steepness.

    Photo (Brandt)

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    3

    Continued strong winds blowing from the west have now overloaded a weak snowpack. These wind drifted snow avalanches could be enough to catch and carry a rider, however combined with the buried persistent weak layers this could make for much larger avalanches breaking 1'-3' deep and up to 400' wide. The very nature of strong winds is that they will load slopes on all aspects regardless of wind direction.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2

    Watch for sensitive soft slabs of new snow, especially during periods of increased precipitation. Today's snowfall may have density inversions which can create sensitive soft slabs of new snow. These by themselves may not be an issue to riders, but combined with the buried persistent weak layer (PWL) and some wind could create bigger avalanches. There is also a chance of rain on snow at elevations below 8,000' later this afternoon. You could see wet loose roller balls in lower elevation terrain.

Avalanche Warning

What: The avalanche danger for the warning area is HIGH today When In effect from 6am MST this morning to 6am MST Sunday Where: For the mountains of Northern and Central Utah, and Southeastern Idaho, including the Wasatch Plateau (Skyline)...Wasatch Range...Bear River Range...Wellsville Mountains

Impacts: Heavy snow combined with strong wind is creating widespread areas of unstable snow. Both human-triggered and natural avalanches are likely

What to do: Avoid all avalanche terrain. Stay off of and out from under slopes steeper than 30 degrees. Carry and know how to use avalanche rescue equipment. Find safer riding conditions on slopes less than 30° with no overhead hazard

Warning Times: Saturday, December 28, 2024 - 6:00am to Sunday, December 29, 2024 - 6:00am

Recent Activity

Yesterday, we had one observation from Cutler Ridge. Bill Brandt found localized cracking and poor snowpack structure. Ski area operations reported soft slab wind drifts that were reactive to skis. Read all the observations HERE.

Snow and Weather

Currently it is snowing lightly. Temperatures are in the mid 20's to low 30's °F. Winds are blowing from the west in the 20's gusting to the high 50's MPH. Overnight there was another 3"-8" of new snow and .30"-1.00" water reported which brings our storm totals to 12"-22" of snow and 1.5"-2.65" of water. For today, continued snowfall with 8"-16" of snow and 1"-1.5" of water forecasted. The snow densities could be quite high and increasing through the day as temperatures warm up. Temperatures will be 32-38 °F and the freezing level may rise to 8,000'. There is a chance we could see rain at lower elevations later this afternoon. Winds will blow primarily from a westerly direction 20 gusting to 25 MPH at the lower ridgelines and 45 gusting to 55 MPH at the higher and more exposed ridgelines.

Additional Info

It's not all doom and gloom. This will settle out eventually and, in the meantime, you can travel on slopes less than 30° in steepness, check out some of our free online learning, or work on your rescue skills in lower angle meadows.

General Announcements

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This information does not apply to developed ski areas or highways where avalanche control is normally done. This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.

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