Bollettino valanghe

Moab

Utah Avalanche Center
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Pericolo valanghe

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

In sintesi

An isolated or MODERATE danger exists for human triggered avalanches involving shallow slabs of wind drifted snow on steep slopes above treeline that face NW-N-NE-E. The biggest threat from these shallow slabs will be getting swept off your feet and possibly carried into rocks or over a cliff in areas of extreme terrain. All other slopes have a LOW danger. Be aware of increasing avalanche danger into the weekend as incremental loading stacks up on widespread weak snow surfaces.

It's still low tide out there, and a small amount of new snow will just barely cover rocks, stumps, and logs beneath the surface.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    1

    A few inches of snow and strong southerly winds on Christmas Eve created isolated slabs of wind drifted snow in the high country. Generally speaking, these should be fairly benign and not deep enough to bury you. With all of the underlying slick surfaces about they could however, sweep you off your feet and carry you into rocks or over a cliff. Look for recent deposits of wind drifted snow on the leeward sides of ridge crests and terrain features in upper elevation, wind affected terrain.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    0

    Persistent weak layers in the snowpack are generally benign at this time but looking ahead, it's important that we keep the existing poor snowpack structure in mind. Generally speaking, the snowpack near treeline and below is faceted through to the ground at this point. There are areas where the midpack still has some semblance of a denser slab, but with very weak snow above and below, it's turned into an unstable base for future snowloads. Above treeline things are a little more complex. Much of the snow pack is again weak and faceted, but hard wind slabs over riding the weak snow add to the mix. The best case scenario would be for a big dump to cause a widepsread avalanche cycle that would clean everything out. A more likely scenario will be a tenuous, incremental loading on top of the unstable base. The bottome line, is that when we start adding snow, steep, north facing slopes will be a no go.

Special Announcement

Geyser Pass Road: The road is plowed to the trailhead. Surface is dirt down low, with hard slick patches of snow above. AWD with good tires is recommended.

Grooming Conditions: Surfaces that were packed solid from weeks of ski and snowmobile traffic now have a couple of inches on them.

Now is a great time to dial in your safety gear including putting fresh new batteries in your beacons! Local shops across the state will be handing out free Batteries for Beacons now until February 1, 2025. All you need to do is fill out a quick survey and grab the AAA or AA batteries you need to keep your beacon fresh this season. Head into Moab Gear Trader to get yours!

Recent Activity

See the avalanche database here.

Snow and Weather

6 A.M. Snow and Weather Data

24 Hour Snow: 0" 72 Hour Snow: 2" Season Total Snow: 48" Depth at Gold Basin: 25"

Winds on Pre-Laurel Peak: WSW 5-10 Temp: 17° F Percent of Normal (SWE): 105%

Weather

A transitory ridge over the area will move easterly this morning as a short wave trough nudges through the northern Great Basin. Look for developing clouds today and a slight chance for snow by afternoon. High temps will be in the mid 20's at 10,000' and winds will be mostly light from the WSW. We'll see another chance for snow on Friday, and again on Sunday. Although the West is finally seeing a shift into a more progressive pattern, most of the action will take place north of us.

General Conditions

I'm afraid the Christmas storm failed to deliver beyond the 2" that fell overnight on Christmas Eve. I've often been impressed with what a couple of inches can do to refresh conditions but with the way things are, we're going to need more than that. Hopefully we'll stack up a few more by Sunday. As it is, the recent snow will barely fill in the gaps in the high country where rocks, crusts, and hard surfaces abound. Sheltered, northerly facing terrain below treeline is where you will find the most benefit from the recent snow. In these areas the snowpack has generally lost cohesion but at least it's soft. The problem is that it's still quite shallow, and no longer very supportive.

Snowpack and Weather Data

Snowpack Observations

Gold Basin Storm Stake (10,000')

Gold Basin SNOTEL site (10,000')

SNOTEL site near Geyser Pass Winter Trailhead (9600')

Wind Station on Pre-Laurel Peak (11,400')

NWS forecast for the La Sal Mountains.

Additional Info

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General Announcements

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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