Logan Avalanche Advisory

Forecaster: Toby Weed


Danger by aspect and elevation on slopes approaching 35° or steeper.
(click HERE for tomorrow's danger rating)

Danger Rose Tutorial

The overall danger in the backcountry is CONSIDERABLE (3), which means that dangerous and potentially deadly avalanche conditions linger on many slopes in the region. You could trigger a nasty hard slab avalanche 3 to 6 feet deep, or deeper, and potentially quite wide on slopes with preexisting weak snow that haven't recently avalanched. Any triggered deep slab avalanche is likely to be huge, long running and very dangerous. Triggered wind slab avalanches are also probable on drifted slopes steeper than about 35 degrees. You can find safer conditions at lower elevations, in sheltered lower angled terrain, and on slopes that recently and completely slid.

Careful snowpack evaluation, cautious route-finding and conservative decision-making are essential for safe backcountry travel travel today. I plan to avoid and stay out from under steep slopes and avalanche paths that haven't recently avalanched.


You can find nice fast powder, and snow conditions are good even on low angled slopes. Some people have been able to find fairly safe situations in the partly filled-in bed surfaces of recent large avalanches. The Tony Grove Snotel at 8400' reports a couple inches of accumulation in the last 48 hours and with 71" of total snow on the ground, the station is reporting 64% of average water for the date. The Campbell Scientific--Logan Peak wind sensor recorded increasing southwest winds overnight, now averaging 25 mph. Its 17 degrees at 9700'


It's been four days since our last cycle of large natural hard slab avalanches and almost a week since a handful of close-calls with very big and dangerous rider triggered hard slab avalanches last weekend up in the Tony Grove and Providence Canyon Areas... The recent avalanches I've been looking at have been 4 to 6 feet deep and a few hundred feet wide or more.

Here's an updated local backcountry avalanche list:


      Over the next 24 hours.

Very dangerous deep slab avalanches are still possible today in steep terrain that didn't recently avalanche.

In some areas, you could still trigger a dangerous avalanche from a distance or from below. Triggered deep slab avalanches could step down to weak snow near the ground and be very broad and destructive. Smaller storm snow or wind slab avalanches overrunning slopes with deeply buried weak snow could produce a much larger and more dangerous avalanche. Keep in mind that recent avalanches in the region have been running far, many to the fullest extent of their paths.


      Over the next 24 hours.

Increasing and sustained southwest winds overnight and today are drifting snow into potentially sensitive slabs on the lee side of exposed ridges and around terrain features...Additional accumulations today will likely also be susceptible to drifting


Today and tonight's storm may again favor the north, with currently 4 to 8 inches of accumulation forecast by tomorrow morning...Snowfall, under a southwest flow, should begin later this morning and taper off in our area around tomorrow morning. Expect continued moist weather but little accumulation through the weekend as the energy and moisture from the flow move to our south.....


I will be issuing morning avalanche advisories for the Logan area on Mondays, Wednesdays, Fridays and Saturdays.

Consider purchasing some Beaver Mountain lift tickets here from our good friends at Backcountry.com in partnership with Ski Utah. All proceeds benefit the Friends of the Utah Avalanche Center.

If you want to get this avalanche advisory e-mailed to you daily click HERE.

Send us your avalanche and snow observations. You can also call me at 435-757-7578 or the SLC office at 800-662-4140, or email to uac@utahavalanchecenter.org

Donate to your favorite non-profit – The Friends of the Utah Avalanche Center. The UAC depends on contributions from users like you to support our work.

The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.

I will update this forecast Saturday morning. Thanks for checking in....

This information does not apply to developed ski areas or highways where avalanche control is normally done.  This advisory is from the U.S.D.A. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.

This advisory provided by the USDA Forest Service, in partnership with:

The Friends of the Utah Avalanche Center, Utah Division of State Parks and Recreation, Utah Division of Emergency Management, Salt Lake County, Salt Lake Unified Fire Authority and the friends of the La Sal Avalanche Center. See our Sponsors Page for a complete list.