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”
January 12, 2008 7:30 am
Good morning, this is Evelyn Lees with the
Snow totals from the
latest weather disturbance that started early Thursday morning are 5 to 10
The only reports of avalanche activity yesterday were within the new snow – sluffs, soft slabs and sensitive, but shallow, soft wind drifts that were easily triggered on steep slopes. There are a few PHOTOS and SNOWPITS of interest, and a short video observation.
Today, these wind drifts and layers within the upper few feet of the snow pack will continue to be the most active. The various layers of graupel and light density snow from the past few days could still be sensitive on steep slopes, but should steadily strengthen out of wind affected terrain. Cornices are large, and could break back further than expected. In the bigger picture, in many mountain locations there has been daily snowfall for the past 8 days, so caution is advised simply due to the large amount of water weight – the snowpack still needs some time to adjust. Areas where the graupel has pooled, such as at cliff bases, have extra weight, and it’s not a good time to hit them hard.
The parade of deep, hard slab avalanches has slowed down this week as the weak facets near the ground become more deeply buried and harder to trigger. But there remain isolated places where a person could trigger a deep, dangerous avalanche, most likely on a steep slope with a thin snowpack, especially a slope facing northwest through southeast.
Bottom Line for the
The avalanche danger is MODERATE on slopes steeper than about 35 degrees, which need to be evaluated for weaknesses within the upper few feet of the snow and any fresh wind drifts, which should be avoided. These problems will be most widespread in exposed upper elevation terrain, along ridgelines and in the upper Cottonwoods, which received the most snow. There also remains a MODERATE danger for triggering a deep, dangerous slide that could break out near the ground. After 8 days of snow, please use caution today!
A final weak system will
keep clouds over northern
The Wasatch Powderbird Guides didn’t fly yesterday due to weather, and today if they can fly they will be in
The avalanche beacon parks are up and running at Solitude, Snowbird and Canyons.
Great places to practice by your self or with friends.
The UAC depends on contributions from users like you to support our work. To find out more about how you can support our efforts to continue providing the avalanche forecasting and education that you expect please visit our Friends page.
UDOT highway avalanche control work info can be found by
calling (801) 975-4838.
Our statewide tollfree line is 1-888-999-4019 (early morning, option 8).
If you’re 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.
Drew Hardesty will update this advisory by 7:30 on Sunday morning.