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 is a LOW avalanche danger in the Logan area backcountry, and you'll find generally safe avalanche conditions.  Watch for recently deposited, shallow wind slabs on isolated and exposed upper elevation terrain features.  The Avalanche danger will likely rise to MODERATE at upper elevations, and freshly deposited wind slabs will probably be more widespread by Tuesday afternoon with new snow and wind in the forecast.


We picked up another wet inch of snow with 4/10ths of an inch of water on Saturday at the Tony Grove Snotel. But, temperatures were quite warm and it only snowed at the highest elevations.  At mid elevations and on slopes with shallow snow cover, the warmth weakened the prominent rain-crust formed November 12th and13th.  I found fast conditions, with the crust mostly supportable under an inch or two of heavy new snow at higher elevations.


      Over the next 48 hours.

Watch for small wind slabs built by north winds. These are only a couple inches deep, but isolated upper elevation pockets could create problems in some terrain features.  This afternoon watch for wind deposited or drifted new snow in exposed terrain, mainly along the highest ridges and in lee pockets.


The high pressure system has finally moved in overhead and it will be mostly clear and warm today, but high clouds ahead of a Pacific Storm coming at us from the northwest will start streaming into the region.  It looks fairly certain now that it will snow in the mountains tomorrow, but the storm will move through quickly and we won't see substantial accumulation.  I think we'll be quite happy with a couple inches, and 4 to 6 inches is not a bad bet for upper elevations.  The forecast calls for breezy conditions tomorrow with west-southwest winds in the 20+ mph range.

Another weak storm should bring us a little more snow on around Thursday night


We plan to run the Basic Avalanche Clinic on December 12-13 with the USU Outdoor Recreation Center.  Please register in advance....call (435) 797 - 3264 or go to  USU ORC  

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.