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, January 29, 2003
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Good Morning. This is Evelyn Lees with the
It is a delightful morning in the mountains, with clear skies and pleasantly cool temperatures, ranging from the upper teens to low twenties. The northwesterly winds are light, in the 5 to 15 mph range. Turning conditions will be first-rate on shady slopes above about 9,000’ in 6 to 9” of settled powder. But if you’re in the mood to torment yourself, there are widespread areas of thick, breakable Styrofoam crusts on any slope which received sun yesterday.
Yesterday, there were many small
natural and skier triggered avalanches within the new snow. It was easy to get the new snow to sluff on both
sunny and shady slopes, sometimes trigging a small soft slab. The slides were generally 20 to 40’ wide, and
mostly stopping short as the slope angle decreased. Natural releases were reported from the Monitors,
Last nights cooler temperatures will have settled out many of these instabilities. Today, the most likely place to get in trouble would be on a continuously long, steep, shady slope. Here, even a smaller sluff would have the potential entrain snow and pick up speed resulting in more serious consequences. In isolated areas, slides could still break into the upper layers of facets.
Warming temperatures and direct sun will initiate another round of wet snow activity today. Easterly facing slopes will be the first to become active, followed by south and west. High thin clouds are in the forecast, which will cause “green housing”, the heating of the snow surface even on shady slopes.
Bottom Line (SLC,
Today the avalanche danger is MODERATE on slopes about 35 degrees or steeper, which face northwest, north, northeast and east, above about 9,000’. There is LOW danger this morning on slopes less than about 35 degrees, slopes below about 9,000’ and on the sunny slopes. As the day heats up, the avalanche danger will increase to MODERATE on and below steep slopes of all elevations and aspects.
There will be mostly sunny
skies this morning, with increasing high thin clouds clouds
this afternoon. Highs today will be in the
low 40’s at 8,000’ and near 30 at 10,000’.
Winds will be in the 10 to 20 mph range from the northwest. Increasing clouds late tonight, with
northwest winds 25 to 30 mph by morning, and lows in the mid to upper 20’s. A moist northwest flow will move across
The Friends of the Utah
This Sunday, February 2nd,
there will be a fundraiser for the Wasa
To report backcountry snow and avalanche conditions, especially if you observe or trigger an avalanche, call (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.
Bruce Tremper will update this advisory by on Thursday morning.
Thanks for calling!
For an explanation of avalanche danger ratings: