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
Wednesday, February 19, 2003
If you want this advisory automatically e-mailed to you each day for free, click HERE.
If you want recent archives of this advisory, click HERE.
To e-mail us an observation, CLICK HERE.
To see photos of recent avalanche activity CLICK HERE (Updated 2-16-03)
To see a list of recent
Good Morning. This is Evelyn Lees with the
Under mostly clear skies, temperatures are pleasantly cool this morning, in the single digits to mid teens. Winds are from a southerly direction and are currently less than 15 mph at all mountain stations. The Cottonwoods picked up a quick inch of snow yesterday afternoon, and turning and riding conditions are generally quite good on shady, wind sheltered slopes in dense settled powder and graupel.
Because of the frustrating, variable snow pack, I’ve put in my order for a pair of Inspector Gadget x-ray snow glasses, which will allow me to peer into the snowpack to check both the depth and strength of the snow layers. Unfortunately, they are on permanent back order…. so here is the usual, more conventional information.
Yesterday, a backcountry
traveler triggered a small new snow slide with a ski cut in Main Days. It was on a 35 degree slope at 10,000’, about
25 feet wide and 8-10” deep. Control
work in Big Cottonwood released a few deeper pockets breaking into facets in
very steep, rocky areas. These were 20
to 40’ wide, and 2 to 3’ deep. Additional
information on Monday’s avalanche activity has trickled in. Near the Park City ridgeline, a ski cut released
a 150’ wide hard slab on a southeast facing slope at 9,900’. It was 1 to 2’ deep, and ran on a thin layer
of facets sitting on a melt freeze crust.
Natural activity occurred in the White Pine and
A lack of widespread activity
each day does not dispel the persistent uneasy feeling I have about our snow
pack. As you head into the backcountry
today, remember it is still possible to trigger a deep, dangerous slide breaking
on facets. Especially wa
Bottom Line (SLC,
There is a MODERATE (or localized) danger of triggering an avalanche within the new snow on slopes steeper than about 35 degrees, especially where wind loaded. There is also a MODERATE danger of triggering an avalanche on deeper weak layers of old, faceted snow on slopes that face northwest, north, northeast and east, steeper than about 35 degrees and above about 9,000 feet, especially in thin, rocky areas. And with day time heating, the danger of damp sluffs and slabs may increase to MODERATE on and below steep slopes.
A weak ridge will move across
To report backcountry snow and avalanche conditions, especially if you observe or trigger an avalanche, remember that the information you have could save someone’s life. Please leave a message on our answer machine at (801) 524-5304 or 1-800-662-4140, or email to [email protected] or fax to 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.
I will update this advisory by on Thursday morning.
Thanks for calling!
For an explanation of avalanche danger ratings: