Forecast for the Uintas Area Mountains

Craig Gordon
Issued by Craig Gordon on
Friday morning, December 25, 2020
Tricky avalanche conditions are found at upper elevations. Once triggered, todays avalanches will break deeper and wider than you might expect.
In the wind zone, at and above treeline, CONSIDERABLE avalanche danger exists. Human triggered avalanches are LIKELY on steep, wind drifted slopes. Steep terrain facing the north half of the compass, and particularly slopes with an easterly component to its aspect should be avoided.
Mid elevations offer MODERATE avalanche danger on steep slopes facing the north half of the compass and human triggered avalanches are POSSIBLE.
In either case, shallow snow cover and low tide conditions barely hide natural obstacles like stumps and rocks, so, triggering even a small slide can lead to an instant buzz-kill and a season ending injury.
LOW avalanche danger is found on mid and low elevation slopes, particularly those facing south, but snow cover is super thin.
Low
Moderate
Considerable
High
Extreme
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Special Announcements
Bruce and I wanna wish y'all a Merry Christmas... baby!
Thanks for sharing your snow, your slope, and your stoke... well played!
A big shout out, high fives, and air hugs to the crew I met yesterday at Wolf Creek who not only brought an amazingly positive energy to the day.... you showed how to avoid avalanche danger by choosing the right terrain. In the image above, everyone opted to avoid the avalanche dragon on the steep, shady slope yet still had a great day on low angle terrain facing the south half of the compass, riding shallow pow, with their families, in the sun.
You know the program... roadside attractions are still an easy grab and just 'cause you can see it from the car doesn't mean it's safe or you're good to go. And remember, our front-line health care workers are maxed out. So, let's collectively think about our decisions and the consequences that may have on others.
Thanks to the generous support of our local resorts, Ski Utah, and Backcountry, discount lift tickets are now available. Support the UAC while you ski at the resorts this season. Tickets are available here.
Weather and Snow
Nowcast-
Skies are clear and temperatures mild, registering in the low to mid 20's. Southerly winds blow 10-20 mph along the high ridges. Tuesday night's storm delivered a nice coat of white paint, with nearly 7" of fresh snow stacking up across the range. And while the recent storm is a welcome sight, total snow depths average just about two feet in depth, so the Uinta's are still quite thin and travel is sorta limited to road rides and grassy slopes.
Forecast-
A beautiful Christmas morning is on tap in the mountains with clean air, bright sunshine, and temperatures climbing into the 30's. After a sunny start, high clouds drift into the area and southerly winds bump into the 20's and 30's ahead of a weak storm system that brings a few inches of snow our way Saturday and Saturday night.
Futurecast-
A better shot of snow kicks off the work week and computer models suggest Monday's storm could deliver 6" or so... I'll know more over the weekend and will keep you updated.
Looking for real-time temps, snow, or wind?
Click here and then on the "western Uinta" tab for western Uinta specific, weather station network.
Recent Avalanches
Lots of collapses and cracking, but no significant new avalanche activity to report from yesterday.
To view trip reports and recent avalanche activity, simply click here.
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Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description
Nothing has changed with our problem child... a persistent weak layer of snow, now buried in the mid portion of our snowpack. And while Tuesday's storm wasn't a dense, heavy, knock the entire house of cards over kind-of-snow, recent history tells us that every time we stack up additional snow or windload to our fragile snowpack, we see avalanches. So here's the setup. The current snowpack structure mirrors an upside-down cake... think, stronger snow on weaker snow. This type of layering leads to tricky avalanche conditions because there's not widespread, in-your-face, natural avalanche activity. Rather, our snowpack needs a trigger like us to roll along and knock the legs out from underneath. And yes... we can trigger slides from a distance or from adjacent slopes, and this is the type of avalanche dragon where we can pull the entire log pile down on top of us, even if we're playing on low angle terrain. All we need is to be connected to steep terrain above us. And once triggered, today's avalanches may break wider and deeper than you might expect.
But you don't have to ride blind... so, tweak small test slopes like the one in the image above, looking for and listening to signs of unstable snow like whoomping sounds and sudden collapses of the snowpack or shooting cracks in front of your skis, board, or sled. And of course the biggest clue of all... recent avalanches, especially on the same types of slopes you wanna ride on.
Avalanche Problem #2
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Ace observer Michael J, stomped around Weber Canyon Wednesday and found sensitive drifts cracking well out in front of his skis, indicating the sensitive nature of freshly formed wind drifts.
I didn't find widespread wind drifts in my travels yesterday, but the Uinta's are a big place and I bet there's a few old drifts out there. Found mostly on the leeward side of upper elevation ridges, you'll also want to be on the lookout for drifts forming lower downslope than you might expect, as well as cross-loaded terrain like chutes and gullies. In either case, it's an easy and mostly manageable avalanche problem to avoid by simply steering clear of any fat, rounded piece of snow, particularly if it sounds hollow like a drum. And remember... our snowpack is super shallow and triggering even a small slide can take you for a body-bruising ride through rocks and stumps barely hidden under the thin snowpack.
Additional Information
Last Friday I rolled up to a fresh avalanche and found Utah Snowmobile Association president, Cal Taylor, investigating the slide and performing a mock rescue with his riding partner Mike Davis. In the video above, Cal has some sage advice for our riding community.
I'll update this forecast by 7:00 AM tomorrow, Saturday December 26th.
Your observations are import, so please let me know what you're seeing... click HERE and contribute to this amazing community based program
General Announcements
If you see or trigger an avalanche or just wanna let me know what you're seeing you can reach me directly at 801-231-2170 or [email protected]
The information in this forecast is from the US Forest Service which is solely responsible for its content.