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Forecast for the Logan Area Mountains

Toby Weed
Issued by Toby Weed on
Saturday morning, December 6, 2025

The avalanche danger will rise to HIGH on drifted upper-elevation slopes. Natural avalanches are possible, and people are likely to trigger dangerous slab avalanches up to 2 feet deep on slopes steeper than about 30 degrees.

  • Avoid travel on or under drifted slopes at upper elevations.
  • Low elevation slopes were mostly bare of snow yesterday.
Low
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High
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Special Announcements
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Weather and Snow

This morning, the Tony Grove Snotel at 8400' reports 23° F, with 11 inches of new snow, and there is 29 inches of total snow. Overnight winds were quite strong and sustained from the west. This morning, the wind is blowing 40 mph on Logan Peak with gusts to 77 mph, and 30 mph with gusts close to 50 mph on Paris Peak. Temperatures range from 22° F on Paris Peak to 42° F down in Logan.

Yesterday, we were surprised and disappointed by a nasty rime event that created a horrible, breakable crust in open terrain on top of very weak sugary snow from earlier in the week and November. At least last night's heavy snow has buried it, but the rime crust will complicate things in our young snowpack.

The National Weather Service has issued a Winter Storm Warning for the northern mountains, including the Logan Zone, through early Sunday morning.

*This from this morning's NWS forecast discussion: "Valley rain and heavy mountain snow over northern Utah and southwest Wyoming will continue through midmorning, with precipitation becoming more showery during the afternoon before tapering off tonight. Another storm system may impact northern Utah for the middle of the upcoming week."

In the Logan Zone: Expect snow and blowing snow in the mountains today, with 2 to 4 inches of additional accumulation possible on upper elevation slopes. Temperatures will drop to near 21° F. Winds out of the west will continue to be quite strong and will drift considerable snow, with gusts in the 50 mph range on the ridges. Tonight, expect mostly cloudy conditions, with temperatures holding steady around 20° F, and 10 to 15 mph winds from the west. Sunday will be partly sunny with high temperatures around 25° F, 10 mph wind from the west-southwest, and a chance of some snow showers.

Recent Avalanches
No avalanches have been reported recently in the Logan Zone. For observations and avalanche activity, go HERE
Avalanche Problem #1
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Very dangerous conditions will develop in upper elevation terrain today, and people should avoid travel in avalanche terrain. Stay off and out from under drifted slopes steeper than 30 degrees... Avalanches of wind-drifted snow are likely at upper elevations and possible in some exposed mid-elevation terrain.
  • Even a small avalanche could be quite dangerous in these shallow snow conditions, because you might be dragged through the rocks or down trees below.
  • We recommend people avoid upper elevation avalanche terrain today, but if you venture out, follow safe travel protocols; travel in the backcountry with companions, but cross (or ride) steep slopes one person at a time while the rest of your party watches from a safer place.
  • See video of early-season snow conditions.
Avalanche Problem #2
New Snow
Type
Location
Likelihood
Size
Description
People are likely to trigger loose, and storm slab avalanches on steep slopes with significant deposits of new snow, even in more sheltered terrain.
Additional Information

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.

General Announcements
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.