Logan Avalanche Advisory

Forecaster: Toby Weed


Through a generous donation by Backcountry.com to our partners the Friends of the Utah Avalanche Center we will continue forecasting through this weekend.


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

Danger Rose Tutorial

There is a Level 2 or Moderate danger at upper elevations in the backcountry, and heightened avalanche conditions exist on slopes with significant deposits of drifted fresh snow. Cold temperatures are helping to diminish the wet avalanche threat, and there is a Level 1 or Low danger at lower elevations, in more sheltered areas, and on the majority of slopes in the zone... Use normal caution, continue to follow safe travel protocols, and evaluate the snow and terrain carefully, especially in exposed upper elevation terrain....


We'll find a pleasant wintry day in the mountains; chilly, only partly sunny, and still a bit breezy. Cold temperatures are good this time of year, and the wet lower and mid elevation snow will now be solidly refrozen. We should find nice smooth and supportable dust-on-crust down low and shallow spring powder up higher. Mountain temperatures dropped significantly overnight, and clearing skies likely "dried out" yesterday's moist snow. Sustained and gusty west winds overnight scoured windward slopes, built cornices, and drifted snow into upper elevation starting zones. Westerly winds will not diminish much today, and sub-zero wind chills are forecast. The 8400' Tony Grove Snotel reports 15 degrees this morning and 6 inches of new snow with 8/10ths of an inch of water in the last 24 hrs. There's 144 inches of total snow at the station, with 171% of average water content for the date..


We've had reports of several unintentionally triggered avalanches in the Central Wasatch Range in the past couple days, with a couple people reportedly caught and carried by fresh wind slab avalanches, and at least one injury.. Locally, a rider remote triggered a good sized wet slide near White Pine Lake last weekend, and on Monday afternoon we easily triggered several loose wet avalanches at mid-elevation that entrained significant piles of fresh wet snow, ran pretty far, and packed a destructive punch.... I've recently noticed numerous fairly new glide cracks across the zone. Between the thunder storms and from a distance yesterday, I thought I could see evidence of a large fresh glide or wet slab avalanche in Pine Canyon in the Wellsville Mountain Wilderness above the town of Wellsville...

.See our avalanche list HERE


      Over the next 12 hours.

Sustained and gusty west winds during and continuing after last night's snowfall created fresh wind slabs in exposed terrain. With more accumulation, the threat is obviously greater at upper elevations... You could trigger fresh wind slab avalanches 1 to 1.5 feet deep at upper elevations on the lee sides of ridge lines and in and around terrain features like sub-ridges, gullies, scoops, and cliff bands.... Fresh drifts will be fairly obvious and you should avoid smooth, rounded, hollow sounding, or stiffer drifted snow on steep slopes, especially above trees or other potential terrain traps...


      Over the next 24 hours.

Continue to avoid the large overhanging ridge-top cornices, which continue to build with sustained west winds and moist fresh snow... You could trigger a dangerous cornice fall from much further back than you expect, and large cornice falls could trigger avalanches on steep slopes below....


. Cool and moist weather under a continued westerly zonal flow should continue through the weekend and well into next week. Expect some clouds and a fair amount of sunshine today, with continuing west winds and high temperatures in the 20s.. There is a good chance of some snow tomorrow and again on Sunday, but accumulations will be insignificant. Mountain temperatures are supposed to remain below freezing over the weekend and drop into the teens at night.


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You can view a photo summary of this year's avalanche activity in the Logan Area.... HERE

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Please continue to submit avalanche and snow observations. Your observations have been fantastic this year, and we very much appreciate your efforts as they allow us to create a better and more accurate forecast for a very large area.. You can also call us and leave a message this spring at 801-524-5304... You can get a hold of me, Toby in Logan, at 435-757-7578, or you can always send us an email by clicking HERE....

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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 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.