Forecast for the Uintas Area Mountains

Craig Gordon
Issued by Craig Gordon for
Saturday, March 2, 2013

While not widespread, at and above treeline pockets of CONSIDERABLE avalanche danger exist and human triggered avalanches are likely on steep, wind drifted, leeward slopes, especially those with an east and southerly component to their aspect. Once triggered, avalanches have the possibility to break into deeper buried weak layers, producing a dangerously unmanageable avalanche.

Mid elevation terrain offers a MODERATE avalanche danger and human triggered avalanches are possible on steep wind drifted slopes.

If you're looking for LOW avalanche danger, head to wind sheltered terrain or carve turns on flat meadows with no steep slopes above or adjacent to where you're riding.

Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
Special Announcements
Our thoughts and prayers go out to the friends and family of James Childs, a 30 year old snowmobiler who was killed in an avalanche accident yesterday on the southern end of the Manti-Skyline. We will visit the site and post our investigatiuon once details have been gathered.
Weather and Snow

High pressure over the region is ushering in clear skies and some of this winters warmest temperatures. Currently, it's in the low to mid 20's and northwest winds are blowing 10-20 mph along the high ridges. Much of our upper elevation terrain has seen it's fair share of wind this week and it's pretty worked. However, below the ridges in sheltered, shady terrain you'll still find soft, settled, creamy powder on a go anywhere base.

Recent observations can be found here.

Our entire Uinta weather station network is up and running. A link to real-time wind, snow, and temperature data can be found here.

This monumental achievement couldn't have happened without the joint efforts from the National Weather Service, The Heber-Kamas and Evanston Ranger Districts, Park City Powder Cats, and all the great work by Ted, Trent, Cody, and Al. Thanks to everyone... this is awesome!

Wondering why last winter was so crazy? Click here to watch the 2011-12 Utah Winter Review... an excellent recap of last years conditions.

Recent Avalanches

South facing slopes harbor surprisingly weak snow formed during the early January dryspell. As temperatures spike today, this dormant layer is going to get cranky. Once initiated, avalanches can break into buried weak layers near the ground, producing a large slide like this slope in upper Weber Canyon which broke to the ground last Sunday.

Click here for recent observations from the region.

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Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description

West and northwest winds have been blowing steadily in the 30's and 40's along the high ridges the past few days, forming stiff wind slabs along the leeward side of upper elevation ridges. While slopes with an east and southerly component to their aspect are most suspect, be aware of cross loading in terrain features like chutes and gullies in terrain facing the north half of the compass. Yup... there's a lot going on when the winds blow and there's snow available for transport. Best approach is to avoid steep, wind drifted slopes especially if they look fat and rounded or sound hollow like a drum. Gather information as you travel today. Tweak some small test slopes and road cuts and see how they're reacting before charging into big, committing terrain..

You can see by this picture, winds have been blowing from the right to the left, loading the steep, leeward chutes around Bald Mountain.

Avalanche Problem #2
New Snow
Type
Location
Likelihood
Size
Description

Strong snow on weak snow... it's what the Uinta's are famous for. Unfortunately, it's also this combination that leads to tricky avalanche conditions. The strong snow will allow us to get well out onto the slope before it fails and we trigger a deep, dangerous slide. A wild card in the deck is the possibility of triggering a slide mid slope or on your approach from the bottom. Best way to combat this condition is with terrain management. Tone down you're objectives a notch or two and consider the consequences of triggering a slide.

Additional Information

Sunny skies, diminishing winds, and temperatures climbing into the low 40's are on tap for today as a ridge of high pressure passes overhead. Clouds will increase overnight and southwest winds increase into the 30's, as a weak storm system slides through the region delivering 3"-5" of snow and cooler temperatures by Sunday night. High pressure builds for Monday and Tuesday and another series of weather systems works into the area for mid week.

General Announcements

Remember your information can save lives. If you see anything we should know about, please participate in the creation of our own community avalanche advisory by submitting snow and avalanche conditions. You can call me directly at 801-231-2170, email [email protected], or email by clicking HERE

This is a great time of year to schedule a free avalanche awareness presentation for your group or club. You can contact me at 801-231-2170 or email [email protected]

Donate to your favorite non-profit –The Friends of the Utah Avalanche Center. The UAC depends on contributions from users like you to support our work.

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.

The information in this advisory expires 24 hours after the date and time posted, but will be updated by 7:00 AM Sunday March 3rd.