Wasatch Cache National Forest

In partnership with: The Friends of the Utah Avalanche Forecast Center, Utah Department of Public Safety Division of Comprehensive Emergency Management, Salt Lake County, and Utah State Parks


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Avalanche advisory

Tuesday, FEBRUARY 12, 20023:30 PM



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Good afternoon, this is Tom Kimbrough with the Forest Service Utah Avalanche Center with your backcountry avalanche and mountain weather advisory.Today is Tuesday, February 12, 2002, and itís 3:30 p.m.


Current Conditions:

Ridge top winds were in the 20ís and 30ís for awhile this morning but by noon had dropped to 10 to 20.The direction is shifting more northerly and will be from the northeast by evening.Temperatures at noon were in the twenties at 8,000 feet and in the teens at 10,000.


Many slopes have sun and/or wind damage, but some dense, settled powder still exists on wind sheltered shady slopes.


Avalanche Conditions:

No new avalanches have been reported since Saturday, and our observers are finding increasingly stable snow.The weak layer that produced numerous natural and human triggered avalanches in late January and early February is less sensitive now but could still produce an unpleasant surprise, especially on very steep slopes or if stressed by a large load, such as several people or snowmobiles on a slope at one time.


New weak layers are also developing, both at the surface and deeper in the pack, that could give trouble when the next major storm hits the Wasatch.


Bottom Line:

Currently most of the terrain in the northern Wasatch has a generally LOW avalanche danger.However, on mid and upper elevation slopes approaching about 40 degrees steepness, the chance of triggering a dangerous hard slab avalanche remains MODERATE.While these slides can only be triggered in isolated areas, the consequences of getting caught in one of these hard slab avalanches could be severe.


(Provo Area Mountains)

Mostly the same general conditions as in the SLC mountains.


(Ogden Area Mountains)

Mostly the same general conditions as in the SLC mountains.


Mountain Weather:

Skies will be clear tonight but expect increasing clouds on Wednesday as a minor weather disturbance approaches to give the mountains the chance of a dusting of snow Wednesday night into Thursday.Low temperatures tonight will be 10 to 15 degrees at 8,000 feet with highs on Wednesday in the twenties and thirties.Winds will shift right around the compass overnight, moving from the north, through the east and on around to the southwest by mid day Wednesday.The mountains could get an inch or two of new snow by Thursday morning.High pressure will return on Friday but weaken Saturday, with at least the possibility of a significant storm on Sunday.



During the Olympics, we will issue both morning and afternoon advisories.Weíll use the 364 -1591 line for more detailed or additional avalanche information.


To report backcountry snow and avalanche conditions, especially if you observe or trigger an avalanche, you can leave a message at (801) 524-5304 or 1-800-662-4140.Or you can e-mail an observation to [email protected] .org, or you can fax an observation to 801-524-6301.


Wasatch Powderbird Guides will not be flying for the next couple of weeks.


We have a new icon-based, short advisory posted each day at www.avalanche.org.We would appreciate any feedback on this new product.


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.


Carol Ciliberti will update this advisory by 7:30 on Wednesday morning.

 Thanks for calling!


For more detailed weather information go to our Mountain Weather Advisory

National Weather Service - Salt Lake City - Snow.

For an explanation of avalanche danger ratings: