Forecast for the Uintas Area Mountains

Craig Gordon
Issued by Craig Gordon on
Monday morning, December 28, 2020
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 are most suspect.
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
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 on Christmas Eve 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.
Drew Hardesty has an excellent new blog post.
Managing Risk with Avalanches, Managing Risk with a Pandemic - A Conversation with state epidemiologist Dr. Angela Dunn
Stream here or tune in wherever you get your favorite podcasts.
Weather and Snow
Nowcast-
High clouds drifted into the region overnight and a stray snow flurry or two falls, as a storm that's generating snow for the southern half of the state nudges into our area. Temperatures are in the single digits and low teens and southeast winds blow in the 20's along the high ridges. Saturday night's storm delivered 6" of snow and it went a long way to add a little cushion under foot. But total snow depths still 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-
Look for mostly cloudy skies with high temperatures barely cracking into the high teens and low 20's. Winds shift to the east and northeast and blow in the 20's as snow begins later this morning. Not a big storm and we'll be lucky to squeeze another 6" out of it.
Futurecast-
Scattered snow showers linger into Tuesday morning, a break on Wednesday, and another storm slated for Thursday.
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
A local logging company plowing the Mill Hollow Road undercut the Mill Hollow slide path late last week, kicking the legs out from under the slope, and stacking up enough snow on the road to knock you off your feet. This slope has quite the history and was the site of a very close call in 2019. More details here.
In addition, Chad was in Murdock Basin yesterday and has a great trip report here. Both of us experienced lots of collapses and shooting cracks yesterday, but no significant new avalanche activity to report.
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
Persistent weak layers... they're are a pain in the pack because they linger for long periods of time. And recent history tells us that every time we stack up additional snow or windload to our fragile snowpack, we see human triggered avalanches. Problem is... nothing's changed with this problem child because we're not getting plastered with big storms, or the dense, heavy snow needed to help add a thick, insulating coat to our snowpack. As a matter of fact, we're getting nickeled and dimed with just enough snow to keep the weak layers teetering on the edge. So here's the setup. The snowpack foundation 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
Above is a 24 hour data grab from Windy Peak from Saturday and early Sunday morning. Not crazy, raging winds, but the kind of consistent wind loading needed to form an evenly distributed and more connected slab... and now those drifts are camouflaged with fresh snow, making them hard to detect.
Today's wind drifts are found mostly on the leeward side of upper elevation ridges, but it wouldn't surprise me to find a rogue drift or two lower downslope than you might expect. In addition, winds have been all over the compass, and terrain features like chutes and gullies may be cross-loaded and should be considered suspect. 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
Two weeks ago, 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, Tuesday December 29th.
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.