Boletín de aludes

Logan

Publicado el Feb 26, 2026válido hasta el Feb 27, 2026Utah Avalanche Center

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 HIGH avalanche danger on drifted upper elevation slopes facing northwest through east, and it's CONSIDERABLE on most other steep slopes in the backcountry today. Natural avalanches of wind-drifted snow are possible, and people are likely to trigger dangerous avalanches failing on a persistent weak layer buried 1 to 4 feet deep.

Avalanche conditions are dangerous and complex; people should continue to stay off and out from under slopes steeper than 30 degrees and stay clear of avalanche runouts.

Problemas de aludes

Persistent Slabs
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Alta montaña
Límite del bosque
Bajo el límite del bosque
Probabilidad
Likely
Tamaño
3
Avalanche conditions are dangerous in the backcountry, as preexisting layers of very weak snow are overloaded by very heavy snowfall and drifting. The recent heavy new snow is overloading a poor snowpack structure, with a sugary weak layer now buried 1 to 4 feet deep, and the avalanches it can produce are large, destructive, and deadly.

Natural avalanches failing on the widespread persistent weak layer are likely today, and they could be large and destructive.

Large, dangerous, and deadly avalanches can be triggered remotely (from a distance or below).

Audible collapsing or whumpfs and shooting cracks indicate unstable snow, but may not always be present.

This video shows an extended column test from Tuesday in the Northern Bear River Range.
Wind Slabs
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NE
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Alta montaña
Límite del bosque
Bajo el límite del bosque
Probabilidad
Very Likely
Tamaño
3
Fresh drifts of wind-drifted storm snow will continue forming today in lee terrain and in and around exposed terrain features at upper elevations. The drifts will further overload previously formed wind slabs, increasing potential for dangerous hard slab avalanches failing on the persistent weak layer formed in January.

Avoid and stay out from under the large, freshly formed cornices on the ridge lines. These could break further back than expected and may trigger large avalanches on steep slopes below.

Fresh slabs of wind-drifted snow may be rounded and smooth-looking, and they often sound hollow, like a drum, and they can be found in and around terrain features like sub-ridges, rock outcroppings, gully walls, and mid-slope rollovers.

A cornice fall or smaller wind slab avalanche overrunning a slope with poor snow structure could cause a much larger avalanche to occur.
Loose Wet
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NE
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Alta montaña
Límite del bosque
Bajo el límite del bosque
Probabilidad
Likely
Tamaño
2
Loose wet and wet slab avalanches remain possible on steep slopes with rain-saturated snow. Avalanches failing on the buried persistent weak layer could entrain saturated snow in descent and become large and dangerous.

Recent Activity

In the Wasatch Mountains, avalanches in the last week killed 3 people, and one is still in critical condition. All recent avalanche reports are listed HERE. For all observations and avalanche activity in the Logan Zone, go HERE.

Locally, I could see evidence of natural avalanche activity in the Wellsvilles yesterday evening, and I'm sure we will see more across the zone today. On Saturday, riders triggered a couple of large hard slab avalanches in the Three Terraces area in upper Providence Canyon. The video account is below:

Snow and Weather

Rain fell on the snow in the mountains up to around 8000 feet yesterday, saturating the snow and creating wet avalanche hazards. Sunny slopes below about 7000 feet are once again melted off, and remaining snow on northerly slopes is very shallow and now completely saturated. Natural wet loose and more dangerous, wet slab avalanches were reported in the Wasatch Range, and I could see evidence of natural activity in the Wellsville Range on the west side of Cache Valley on Wednesday evening. Several inches of heavy snow accumulated in upper-elevation terrain, and it was drifted into avalanche starting zones by strong winds blowing out of the southwest. With dangerous and complex avalanche conditions across the Bear River Mountains, your safest choice is to stay off and away from the steep hills today.

The UAC Card Canyon weather station at 8700 feet reports 23°F, 56 inches of total snow, and about 5 inches of very heavy storm snow. The Tony Grove Snotel, located at 8400 feet, reports 28°F, and there's 72 inches of total snow. The station reports about 9 inches of storm snow with 2.4" of SWE (snow water equivalent). We're reading a chilly 9°F at 9700 feet on Logan Peak, with winds blowing from the northwest 28 to 39 mph. It's 18°F on Paris Peak at 9500 feet, and the wind sensor was encased in rime yesterday evening, and it is not spinning this morning.

It will be mostly sunny today with a high temperature at 8500 feet around 33 °F and winds from the west, blowing 15 to 20 mph with gusts in the mid-thirties... Tomorrow will be sunny and warm, with high temps around 40°F in upper elevation terrain and in the mid-50s°F down in Cache Valley. The next Pacific storm system will move over the area this weekend, with snow likely on Sunday and Monday.

Additional Info

Travel with a partner, and cross or ride slopes steeper than 30 degrees one at a time while the rest of your group watches from a safe spot.
Ensure that everyone in the group has avalanche rescue equipment (a transceiver, probe, and shovel) and knows how to use it.

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As next weekend approaches, keep in mind that dangerous avalanche conditions will exist in the backcountry. The video below shows recent avalanche activity in the Logan Zone...

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.

For all questions on forecasts, education, Know Before You Go, events, online purchases, or fundraising, call 801-365-5522.

Did you know the UAC hosts a podcast? Episode 2 of Season IX is just out - AI, Machine Learning, and the Value of Expert Intuition at the Utah Avalanche Center.

Are you interested in learning more about avalanches? Visit our education page for details on all our classes.

For more information, visit the UAC weather page here: UAC Weather Page For Logan-specific weather, go here: Logan Mountain Weather

-Remember, the information you provide could save lives, especially if you see or trigger an avalanche. To report an avalanche or submit an observation from the backcountry, go HERE

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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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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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