Boletín de aludes

Logan

Publicado el Dec 25, 2025válido hasta el Dec 26, 2025Utah Avalanche Center

Peligro de aludes

Alta montaña
Límite del bosque
Bajo el límite del bosque

Desactualizado: este boletín caducó 8 months ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

MODERATE: Evaluate snow and terrain carefully because heightened avalanche conditions exist on upper and mid-elevation slopes steeper than 30 degrees. In some areas, people could trigger dangerous hard slab avalanches failing up to 2 feet deep on a sugary, persistent weak layer buried near the ground. Loose wet and wet slab avalanches are possible on slopes with rain-saturated snow.

Slopes below about 7000 feet in elevation across the zone are bare of snow or have only minimal snow cover.

Problemas de aludes

Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alta montaña
Límite del bosque
Bajo el límite del bosque
Probabilidad
Unlikely
Tamaño
3
At upper elevations, weak, faceted snow from November is buried beneath a thick crust or multiple crusts and dense snow. On steep, previously wind-drifted slopes, people could trigger avalanches that propagate widely.

Collapsing, indicated by shooting cracks and/or whumpfs, is a warning sign of unstable snow.

Avalanches might be triggered remotely (from a distance or below).

Even small avalanches can have serious consequences in shallow snow conditions, where a slide could drag you through rocks or downed trees below.

Use safe travel practices: travel with a partner, and cross or ride steep slopes one at a time while the rest of your group watches from a safe spot.

See Bear Wallow ECTP_6 video below
Loose Wet
N
NE
E
SE
S
SW
W
NW
Alta montaña
Límite del bosque
Bajo el límite del bosque
Probabilidad
Possible
Tamaño
2
With around an inch of rainfall on the snow in the mountains yesterday and overnight, even snow that was hard up high last weekend is now soft and saturated. Loose wet and wet slab avalanches of rain-saturated snow are possible on steep slopes with sufficient snow cover. Roller balls, pinwheels, and wet sluffs indicate potential for wet avalanche activity.

Recent Activity

No new avalanches have been reported locally since early December. For all observations and avalanche activity in the Logan Zone, go HERE

Snow and Weather

Dangerous, hard (or wet) slab avalanches up to 2 feet deep remain possible on steep slopes in isolated upper elevation terrain. Previously drifted slopes with poor snow structure (a slab of dense snow on top of weak faceted snow near the ground) are most suspect. Tuesday, I found good snow coverage and access, with crusty, damp snow in the Emigration Canyon Area. There was enough snow to cover the rocks, and people were accessing backcountry riding terrain from the Copenhagen Basin TH. Access to upper elevation terrain in most of the Logan Zone is a challenge over wet, rocky, or icy roads and trails at lower elevations (below about 7000').

Temperatures appear to be dropping gradually this morning, and webcams show that rain is changing to snow at Beaver Mountain's base and at UDOT's Logan Summit sheds. It's 38°F at the Tony Grove Snotel, and with 2 inches less snow than yesterday, there's 28 inches of total snow at the site. The UAC Card Canyon weather station is showing 35°F with 16 inches of total snow. On Logan Peak, it's 31°F, winds are blowing from the south-southwest 25 to 30 mph, with a gust of 78 mph early this morning. On Paris Peak, it's 32°F, and the wind is from the south-southwest at 26 to 46 mph at 6:00 this morning.

The National Weather Service has issued a Winter Weather Advisory for the mountains of Utah, starting tomorrow morning and extending through Saturday morning. Expect rain and snow in the mountains today, and some thunder is also possible, but with little snow accumulation expected. High temperatures at 8500 feet will be around 42°F, but they will drop this afternoon. Winds will blow from the southwest 25 to 30 mph, with gusts over 50 mph. With temperatures finally dropping below freezing to around 29°F, it will snow tonight, and 1 to 3 inches of accumulation is expected. It will be breezy, with a wind from the south-southwest around 25 mph, with gusts as high as 50 mph.

*Heavy snowfall is likely on Friday and Friday night, with up to 20 inches of accumulation from the storm possible at upper elevations in the Bear River Range. While this is very welcome news, the Boxing Day storm will elevate avalanche danger in the backcountry.

Additional Info

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

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

-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.

Observations and Avalanches

Backcountry Emergency Procedures