Avalanche forecast

Logan

Issued Dec 15, 2025valid to Dec 16, 2025Utah Avalanche Center

Avalanche danger

Alpine
Treeline
Below treeline

Out of date — this forecast expired 8 months ago. You’re viewing past conditions, not the current bulletin.

Highlights

Areas with MODERATE or elevated danger exist at upper elevations on slopes facing northwest through east with poor snow structure. In these areas, people might trigger dangerous slab avalanches failing on a persistent weak layer buried 1 to 2 feet deep on slopes steeper than 30 degrees.

Slopes below 7000 feet are bare of snow or have only very shallow snow cover.

Avalanche problems

Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alpine
Treeline
Below treeline
Likelihood
Unlikely
Size
2
Weak, faceted snow from November is buried under heavy, dense snow one to two feet deep. In areas where this sugary layer was present before the December 5/6 storm, human-triggered avalanches remain possible and may propagate widely across a slope. While stability is improving, and avalanches are becoming less likely, some could still be triggered remotely, from below, or from a distance.

Even small avalanches can have serious consequences in shallow snow conditions, as you might be dragged through the rocks or downed trees below.

Follow safe travel protocols: travel with a partner, cross (or ride) steep slopes one person at a time while the rest of your party watches from a safe place.

Recent Activity

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

Snow and Weather

It is currently 10°F cooler than it was yesterday at the Card Canyon weather station, with 35°F and just over 15 inches of total snow at 8700 feet. The Tony Grove Snotel at 8400 feet reports 23 inches of total snow, and it's 36°F. On Logan Peak at 9700 feet, temperatures have dropped to 32°F. The wind sensor is fixed on the communication tower elevated 40 feet off the ground, and this morning, the winds are blowing from the west-southwest around 20 mph. At 9500 feet on Paris Peak, it's a cool 31°F with 15 mph wind blowing from the west-southwest.

A widespread melt-freeze or rain-crust now caps dense snow from the December 5/6 storm, overlaying a sugary, persistent weak layer near the ground. While obvious signs of instability like cracking and whumpfing have generally subsided, snow stability tests continue to show potential for slab avalanches to propagate.

It’ll be another sunny and warm day today in the mountains, with highs around 39°F and light winds blowing from the west. Tomorrow, there's a chance of snow, with little accumulation expected. Skies will be mostly cloudy, with a high near 35°F and winds around 10 mph from the west-southwest.

A more wintry weather pattern will develop in the latter half of the week. Snow is likely at upper elevations on Wednesday, with 3 to 5 inches of accumulation possible. Another 2 to 4 inches could accumulate on Thursday. The weather pattern appears to stay active, and snow is likely at upper elevations every day through next weekend. The primary uncertainty centers on the elevation of the rain-snow line, and the jury is still out on whether it will be a snowy holiday in Cache Valley.

Additional Info

We picked up a fleet of loaner sleds at Karl Malone's Plaza Cycle on Friday that are crucial for our forecasting program, especially in rural areas. Now all we need is a little snow in the hills...

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

-Receive forecast region-specific text message alerts to receive messages about changing avalanche conditions, watches, and warnings. Sign up and update your preferences HERE

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.

General Announcements

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

Backcountry Emergency Procedures