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

Cold overnight temperatures are helping to diminish the wet avalanche threat for the time being. This morning there's a Level 1 or Low danger, and mostly stable snow conditions exist on the majority of slopes in the backcountry. Seasonal midday warming may cause heightened conditions on some steep slopes, and I've included pockets of Level 2 or Moderate danger for steep slopes with saturated snow that become softened by warmth... Triggered large cornice falls and wind slab avalanches are still possible in places. There are areas with a Level 2 danger, and you might find heightened conditions in some drifted upper elevation terrain.. Use normal caution, continue to follow safe travel protocols, and evaluate the snow and terrain carefully, especially on steep slopes with warmth-softened, saturated snow and in exposed upper elevation terrain....


Looks like you found go anywhere riding conditions yesterday on supportable sun-softened spring snow, with a bit of fresh snow up high. We found solid, supportable and mostly stable snow in the Wellsville Mountain Wilderness. The couple inches of yesterdays fresh snow was nicely incorporated into the soft melt/freeze surface snow snow. Cool temperatures and a breeze helped, and we found the nice soft surface snow quickly solidifying and it was mostly refrozen, even in the sun, by the time we began our evening descent... You might need crampon and an ice axe for morning ascents after another good refreeze overnight. The 8400' Tony Grove Snotel reports 18 degrees this morning and there's 141 inches of total snow at the station, with 172% of average water content for the date..


We've had reports of several more unintentionally triggered avalanches in the Central Wasatch Range yesterday. There have been a handful of close calls this week, with a couple people reportedly caught and carried by wind slab avalanches that they triggered, and at least one injury..

Locally, no new avalanches have been reported since the triggered and natural wet activity last weekend and on Monday... Several large glide cracks appeared during the week.

.See our avalanche list HERE


      Over the next 24 hours.

After another cold night in the mountains, avalanches are unlikely and the snow is generally stable on most slopes this morning... Exceptions can be found in very steep or extreme terrain, steep slopes with warmth softened saturated snow, and in some upper elevation areas with recent deposits of drifted snow.


      Over the next 24 hours.

The danger of wet avalanches will rise with seasonal midday warming, and you should avoid steep slopes with warmth softened saturated snow.... Pay attention to the rapid warming red flag today. Increasing cloud cover could trap heat and cause green-house-type warming. Pay attention to trees and other potential terrain traps below you....


      Over the next 24 hours.

Continue to avoid the large overhanging ridge-top cornices, which were again built up late this week, with sustained west winds and moist fresh snow. These large cornices will become more dangerous in midday warmth... 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....

West winds during and after Thursday night's snowfall created fresh wind slabs in exposed terrain, mainly in the Central Bear River Range. You might trigger lingering stiff and stubborn wind slabs around a foot 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.... 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...


Cool and moist weather under a continued westerly zonal flow should continue through the weekend and well into next week. Expect increasing clouds and a fair amount of sunshine today, with continuing west winds and high temperatures in the upper 20s.. There is a good chance of some snow tomorrow and again on Monday, but accumulations will be rather 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.