Wasatch Cache National Forest
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 Salt Lake County.

ďkeeping you on topĒ

AVALANCHE ADVISORY

Tuesday, January 09, 20077:30 am
Good morning, this is Evelyn Lees with the Forest Service Utah Avalanche Center with your backcountry avalanche and mountain weather advisory.Today is Tuesday, January 09, 2007 and itís 7:30 in the morning.

 

UDOT will be sighting in a weapon in Provo Canyon tomorrow morning, Wednesday, January 10, around 10 am.Please, no ice climbing in Provo Canyon Wednesday morning until completion of their work around midday.

 

Current Conditions:

Skies are clear this morning, and the days of wind are over.Along the ridgelines, temperatures have been creeping up all night, and are in the low to mid 20ís.The winds have shifted to the west, and are less than 15 mph at all but a couple of the highest peaks. It will be another strikingly beautiful day in the mountains, though itís too bad the snow conditions donít quite mirror the weather conditions.Snow surface conditions include a bias relief of old tracks, widespread crusts and wind damage.But with good detective work, you can find stashes of scattered powder and slopes with more consistent snow, or at least thin crusts you can blast through.††

 

Snowpack and Avalanche Conditions:

The backcountry was quiet yesterday.One new slide was observed from a distance, above Thaynes Canyon on the Park City side of the range, with an unknown trigger.It was on a mid elevation slope with an easterly component, about 2' deep by 100' wide, and looked similar to a slide triggered nearby on Sunday with control work.

 

Yesterday, most wind slabs seemed welded into place, cracking just around your skies with hard jumps.These stubborn wind drifts are all over the map, on a wide variety of aspects and elevations, and conditions change over short distances of just a few steps.Approach any steep, wind drifted slope with caution, as it still might be possible to trigger one of these drifts, and in the wrong terrain go for a long ride or off a cliff.

 

With significantly warmer temperatures today, it may also be possible to trigger a few damp sluffs or small slabs on steep, sunny slopes.And yes, you can still punch your ski pole to the ground in so many places.The chance of triggering a slide on one of the deeper faceted weak layer is very small, with the weaker snow outside the upper elevations in the Cottonwoods, on slopes with a shallow snow pack.

 

Bottom Line for the Salt Lake, Park City, Ogden and Provo area mountains:

Most terrain has a LOW avalanche danger.The avalanche danger is MODERATE on wind drifted slopes steeper than about 35 degrees.With daytime heating, it may be possible to trigger a few small slides on steep, sunny slopes.

 

Mountain Weather:

Sunshine, light winds and warm temperatures are in store for the mountains today.8000í highs will approach 40, and 10,000í temperatures will be near freezing.Winds will be from the west to southwest, generally in the 10 to 15 mph range.Looking beyond todayís balmy conditions, you may want to stock up on hand and toe warmers.A very cold Pacific storm system will impact the area Thursday into the weekend, with periods of heavy snow and temperatures dropping well below zero.

 

Announcements:

The Wasatch Powderbird Guides were grounded due to weather yesterday and today they will be in Cardiff, Days, Mineral, Silver, Grizzly, American Fork, and possibly Cascade and White Pine.


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We appreciate any snowpack and avalanche observations you have, so please leave us 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.

Brett Kobernik
will update this advisory by 7:30 on Wednesday morning, and thanks for calling.