Avalanche forecast

Logan

Issued Dec 16, 2025valid to Dec 17, 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Out of date — this forecast expired 8 months ago.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

The danger is LOW in most terrain. However, areas with MODERATE or elevated danger may exist at upper elevations on isolated slopes with poor snow structure facing northwest through east. People might trigger dangerous slab avalanches failing on a persistent weak layer buried up 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
Beneath the thick surface crust in the Central and Northern Bear River Range, weak, faceted snow from November is buried under heavy, dense snow one to two feet deep. In isolated previously drifted areas where the crust is thinner or not present, human-triggered avalanches remain possible and could propagate widely across a slope. Remotely triggered avalanches failing on a persistent weak layer are possible.

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.

A bombproof crust locks up the shallow snow in the Tony Grove Area.

Special Announcement

Our Holiday Auction closes Dec 16th! Check it out now to gear up for winter while supporting avalanche forecasting, awareness, and education across the state!

I will be talking about assessing snow stability and lessons learned from last season's avalanche involvements at a "Tour Talk" at Prodigy Brewing in downtown Logan on Wednesday, December 17.

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 33°F at the Card Canyon weather station at 8700 feet, with just over 15 inches of total snow. The Tony Grove Snotel at 8400 feet reports 23 inches of total snow, and 38°F. On Logan Peak at 9700 feet, increasing winds are blowing from the west 30 to 40 mph, and I'm reading a steady 32°F. At 9500 feet on Paris Peak, it's a cool 29°F with 20 to 30 mph wind blowing from the west-southwest.

A widespread thick and hard rain crust now caps the dense snow from the December 5/6 storm, and it's all overlaying a sugary, persistent weak layer near the ground. The hard crust is 4 to 6 inches thick, but you sink right through it in boots, and through the sugary November snow below it to 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. Despite the problem of widespread faceted snow near the bottom of the snowpack, we think the thick crust will hold the snowpack together on most slopes for at least a few loading events.

There is a chance of snow today in the mountains, but less than a half-inch is expected to accumulate. It will be partly sunny, with highs around 35°F and increasing winds blowing from the west around 10 mph. An inch of accumulation is possible in upper elevation terrain tonight. Tomorrow it will snow, with 2 to 4 inches expected. It will be quite windy in the mountains with strong winds gusting from the southwest, and temperatures dropping into the lower twenties. A wintry weather pattern is expected to intensify in the latter half of the week. Snow is likely at upper elevations on Thursday, with 3 to 5 inches of accumulation possible. The weather pattern appears to stay active, with periods of heavy snow likely at upper elevations heading into the weekend.

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