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 4 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

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DANGEROUS AVALANCHE CONDITIONS

The avalanche danger remains HIGH today on many slopes of the mid and upper elevations. Natural and human triggered new snow or wind-drifted snow avalanches are likely. On northwest through easterly facing aspects, avalanches may step down into older weak layers, leading to large and destructive avalanches.

Travel Advice: Travel in avalanche terrain is not recommended. I would also avoid traveling beneath large avalanche paths as well.

Problemas de aludes

  • Persistent Slabs

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

    This is - again - a significant loading event for our buried weak layers from November. These avalanches will be most problematic on northwest to easterly facing aspects of all elevations, but we cannot rule out the other aspects at this time. Tread carefully - these are unsurvivable avalanches. Cracking and collapsing will probably not be noted; best to follow the travel advice for HIGH - avoid all avalanche terrain.

    TREND: Same

  • Storm Slabs

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

    Continued heavy snowfall will increase the avalanche danger today on all aspects and elevations. I expect rising sensitivity and size of both soft slab avalanches and dry loose avalanches within the new snow of all aspects at the mid and upper elevations. Any new snow or wind drifted snow avalanche may step down into older weaker layers, resulting in a larger, more dangerous avalanche.

    TREND: Increasing

  • Wind Slabs

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

    Sensitive soft slabs of wind blown snow will be found on steep slopes of the mid and upper elevations. With shifting winds, all aspects of the mid and upper elevations may harbor soft slabs of wind blown snow. These can be found well off the ridgelines and around other terrain features. Cracking is a clear sign of instability. Avoid steep terrain with fresh wind drifts.

    Any new snow or wind drifted snow avalanche may step down into older weaker layers, resulting in a larger, more dangerous avalanche.

    TREND: Decreasing

Avalanche Warning

THE FOREST SERVICE UTAH AVALANCHE CENTER IN SALT LAKE CITY HAS CONTINUED A BACKCOUNTRY AVALANCHE WARNING WHICH IS IN EFFECT FROM SUNDAY 6AM MST TO MONDAY 6AM MST...

* WHAT...The avalanche danger is HIGH across northern, central, and southwest Utah. The danger has reached EXTREME in some parts of the Provo area mountains.

* WHERE...For most mountains in Utah and southeast Idaho, including the Wasatch Range, Bear River Range, Uinta Range, Manti-Skyline, Fish Lake Region, Pavant Range, Tushar Range, and Cedar City area mountains.

* WHEN...In effect from 6AM MST this morning to 6AM MST Monday

* IMPACTS...Very dangerous avalanche conditions exist. Natural and human triggered avalanches are likely on many slopes and may be triggered at a distance. Stay off of and out from under slopes steeper than 30 degrees.

Recent Activity

At the mid and upper elevations, ski area control teams triggered numerous shallow soft slabs in the new snow 8-16" deep with one reportedly 800' wide. In the lower elevations, they triggered shallow wet loose avalanches below the rain-line. They will still be busy today.

Bill Brandt noted many new wet slab avalanches below 7000' from yesterday; easterly facing above the north fork.

We did hear second hand of a significant and large avalanche remotely triggered in the Ben Lomond area. The crown was reported 1-6' deep; photo below. Large natural avalanches were spotted to the north in the Wellsville Range...

Snow and Weather

WOW.

2022 went out like a lion and 2023 has picked up where 2022 left off. It's still snowing and avalanches are occurring as I write at 530AM.

Happy New Year.

Overnight snow totals are 3-6". Winds are southwesterly, blowing 15-20mph with gusts to 40. Mountain temps are in the low to mid-20s.

Storm totals are 16-20" with 2.77-2.97" SWE. Other parts of the Wasatch are below -

  • Upper LCC: 24"/1.75" SWE
  • Upper BCC: 20/1.90" SWE
  • Park City: 16"/2.0" SWE
  • Provo mountains: 42"/7.67" SWE (That is not a typo)

Snow stakes now sit at 90-110" in the Cottonwoods and 70-80" along the PC ridge. 70-80" in Ogden, 75-85" in Provo. Amazing.

Snowfall will be heavy at times today arriving on a southerly flow. Winds will diminish and continue shifting counterclockwise with the storm moving overhead. Temps will be in the mid 20s, cooling to the low teens by tomorrow. Snowfall should continue tonight through tomorrow with another 8-14" expected. Unsettled Tuesday with shortwave ridging mid-week. Return to an active westerly flow by late week.

General Announcements

Help support the UAC while doing your Holiday Shopping. The UAC's Holiday Silent Auction opens at 8:00 AM MT on December 26 and will close at 8:00 PM MT on January 2. Take a look at items and bid HERE.

CLICK HERE FOR MORE GENERAL INFO AND FAQ

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.

Observations and Avalanches

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