In partnership with: Utah Division of State Parks and Recreation, The Friends of the Utah Avalanche Center, Utah Department of Emergency Services and Homeland Security and
keeping you on top
December 08, 2007 7:30 am
Good morning, this is
A special avalanche advisory has been continued for
winter and its finally arrived. Storm
totals as of 6 am include 16 to 28 in the
Yesterday, reports of avalanche activity into old snow were concentrated in the upper elevations of the Cottonwoods - upper Days, Silver and Big Cottonwood. Slides were about 50-75' wide, with one triggered remotely, and several large collapses reported, all on northerly facing slopes, above about 9,500. New snow soft slabs were much more widespread on steep slopes, with slides failing at both the density change within the new snow and near or at the new snow/old snow interface.
HIGH avalanche danger will be on any slope that has old, weak facets near the
ground. This weak layer is most
widespread on the upper elevation, northerly facing slopes in the Cottonwoods
On other steep slopes through out the range, it will be possible to trigger new, soft snow slab avalanches. These will be the most sensitive and wide spread along the highest ridges and peaks where the winds blew more strongly for a few hours last night. Natural avalanches are possible in the steepest terrain, especially if youre in an area where when precipitation intensities increase or if the winds start to blow and drift snow. There are numerous safer places to recreate today on slopes less steep than about 35 degrees and below about 9,500 in elevation, and especially if you avoid the northerly facing slopes that retained old, October snow.
Salt Lake, Park City and Provo area mountains: The avalanche danger is HIGH on northwest, north and northeast facing slopes above about 9000 feet, where avalanches up to 3 deep could be triggered, failing on a weak faceted layer. The avalanche danger is CONSIDERABLE on other mid and upper elevation slopes steeper then around 35 degrees, with human triggered avalanches of new snow up to 2 deep probable and natural avalanches possible.
An upper level trough
will remain over northern
Wasatch Touring in
For an avalanche education class list, click HERE.
If you want to get this avalanche advisory e-mailed to you daily click HERE.
The UAC has temporary job openings for doing avalanche outreach in more rural areas. Click HERE for info.
UDOT highway avalanche control work info can be found HERE or by calling (801) 975-4838.
Our statewide tollfree line is 1-888-999-4019 (early morning, option 8).
For our classic text advisory click HERE.
If youre getting out and see anything we should know about please let us know. You can leave a message at (801) 524-5304 or 1-800-662-4140, or email us at [email protected]. (Fax 801-524-6301)
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.