In partnership with: The Friends of the Utah Avalanche Center, Utah Department of Public Safety Division of Comprehensive Emergency Management,
To receive automated e-mail of these advisories, click HERE
Saturday, December 04, 2004 7:30 Am
morning, this is Evelyn Lees with the
High above the inversion, mountain temperatures have warmed significantly in the past 24 hours, and are currently in the upper teens to mid 20s. Winds are light, generally less than 10 mph, and variable in direction. Snow surface conditions are also variable, with the best powder on wind sheltered shady slopes. In wind affected terrain, there are plenty of erratic, unpredictable drifts just waiting to trip you up. The steeper, sunny slopes are crusted.
One new human triggered slide was reported in the backcountry yesterday. It was on a steep NNW facing slope at 9500, just east of Scotties Bowl. The slide was about 1 ½ to 2 deep, 50 wide, and ran on faceted grains above an ice crust. Yesterday, it was also possible to trigger the small new hard winds slabs that are sitting on surface hoar. This afternoon, increasing southwesterly winds may create more of these sensitive drifts. Also, I expect wet sluffs on the steep sunny slopes with afternoon heating today, and possibly on low to mid elevation northerly facing slopes if we get a cover of high thin clouds.
Bottom Line: There is a MODERATE danger on northwest through easterly facing slopes steeper than about 35 degrees and on any steep slope with recent deposits of wind drifted snow. The danger of wet loose sluffs may rise to MODERATE with daytime heating. Moderate means that human triggered avalanches are possible. Most other slopes have a LOW danger, meaning there are only isolated places where a person could trigger a slide.
If you are getting out, drop us a line or an email with any reports or observations from the backcountry. You can leave us a message at 524-5304 or 1 800-662-4140. Email us at [email protected], or send a fax to 524-6301.
The information in this advisory is from the US Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.
Drew Hardesty will update this advisory by 7:30 Sunday morning, and thanks for calling.