Boletín de aludes

Salt Lake

Utah Avalanche Center
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Peligro de aludes

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque
Desactualizado: este boletín caducó 6 months ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

There is a MODERATE avalanche danger on mid and upper-elevation slopes facing west, north, and east where it is possible to trigger an avalanche up to 2 feet deep and over a hundred feet wide, failing on a buried persistent weak layer. Slopes that are wind-loaded from strong winds blowing from the south/southwest are the most susceptible to avalanche.

The Utah Avalanche Center has issued an Avalanche Watch as heavy snowfall beginning this evening accompanied by strong winds will create dangerous avalanche conditions this week.

Problemas de aludes

  • Persistent Slabs

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

    The January dry spell left a widespread persistent weak layer (PWL) of faceted snow on mid and upper-elevation slopes facing west, north, and east, and this layer is now buried underneath the 6-12 inches of snow from this past Wednesday. This PWL is evident in the gray stripe shown in the photo below from Brooke's field day in Days Fork on Sunday. Watch UAC Director Paige Pagnucco's video under Additional Info (below) on how this PWL has developed.

    Wind-loaded slopes are the most likely to avalanche on this PWL where the wind has created a stronger slab above this buried PWL.

    This PWL structure will create dangerous avalanche conditions with heavy snowfall and strong winds beginning later today and lasting through much of this week.

Special Announcement

Join the UAC for the first "Stay and Play Avalanche Course" at Bear River Lodge in the Uintas, March 19th-22nd. This course is designed for snowmobilers by snowmobilers, where you will learn avalanche rescue, riding skills, and how to survive in the backcountry. Come enjoy all the luxury offerings at Bear River Lodge and improve your skills along the way.

You can find details and sign up HERE.

Recent Activity

No new avalanches were reported from the backcountry on Sunday, although we continued to receive reports of recent avalanches from Wednesday's snowfall, including Friday's skier-triggered avalanche in White Pine (photo below) that failed on the January persistent weak layer that was two feet deep and over 200 feet wide.

You can view all recent observations here.

Snow and Weather

5 am: Skies are partly cloudy and temperatures are in the mid 20's °F. Winds are blowing from the south/southwest and strong, with gusts of 30-45 mph along exposed slopes and ridges at the mid and upper elevations. 11,000 foot wind speeds are gusting in the 70's mph.

Today: Skies will become mostly cloudy with temperatures in the mid to upper 30's °F. Winds will increase throughout the day.

Tonight and into Tuesday: Strong winds, with gusts over 50 mph along exposed mid and upper-level ridges. 11,000 foot winds will approach 100 mph. Heavy snowfall overnight and into Tuesday, with up to a foot by late Tuesday.

Heavy snowfall is expected again Wednesday and Thursday, with snowfall totals likely exceeding three feet by later Thursday.

Additional Info

Learn more about Persistent Weak Layers in the video above -

General Announcements

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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