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

There's a level 2 or Moderate danger in the backcountry, with storm snow avalanches possible in areas the received significant accumulations and wind slabs possible in upper elevation drifted terrain. Heightened wet avalanche conditions will rapidly develop this weekend, as the fresh snow becomes moist with daytime heating. Evaluate the snow and terrain carefully, and avoid steep slopes with significant new accumulations, drifted upper elevation terrain and steep slopes with moist or warming fresh snow...


It's 24 degrees up the the 8400' Tony Grove Snotel and there is 54 inches of snow containing 61% of normal water content for the date. The station reports 6 inches of new snow from yesterday. The 9700' CSI Logan Peak weather station reports 19 degrees and a rimed wind sensor. Mt. Ogden reports sustained 20 mph southwest winds


No significant avalanche activity was reported in the Logan Zone for a while...

(go to our current conditions page for more details on the local activity and reports of many other recent avalanches and conditions in the backcountry across the mountains of Utah)


      Over the next 12 hours.

Storm snow avalanches are possible, especially in area that picked up significant accumulations in the last couple days. Fresh wind slabs formed in exposed upper elevation terrain, with several inches of fresh snow and sustained southwest winds... You might trigger a wind slab avalanche this weekend in steep drifted terrain on the lee side of exposed ridges, or in and around terrain features like gully walls, scoops, cliffs, and sub-ridges.


      Over the next 48 hours.

Heightened avalanche conditions will develop rapidly tomorrow with daytime warming, and triggered wet avalanches are possible on steep slopes with saturated fresh snow. Loose wet avalanches involving the fresh snow could entrain more snow than you might expect, especially on long sustained pitches... The fresh snow will rapidly become prone to triggering as it becomes moistened by daytime heating...


Expect more snow today and tonight, with 4 to 8 inches forecast. Mountain temperatures should stay in the mid thirties today, with moderate southwest winds expected. It'll drop into the mid twenties overnight... A couple more inches of snow are expected tomorrow, with similar weather conditions to today's expected...


I recently published some historical photos of the Huge Wood Camp avalanche from 2-20-1986.... Click HERE

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Please send us your observations from the backcountry especially if you see or trigger an avalanche, but also even if you don't.. go to avalanche and snow observations. You can also call me directly at 435-757-7578 or leave us a message at our office, 801-524-5304.... And, you can always send us a simple email by clicking HERE

For the month of April, I will update this advisory intermittently as needed and on weekends...

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.