Forecast for the Uintas Area Mountains

Craig Gordon
Issued by Craig Gordon for
Sunday, January 27, 2019
WE'VE DODGED A FEW BULLETS THIS WEEK AND OUR LUCK IS RUNNING OUT.... DECEPTIVELY TRICKY AVALANCHE CONDITIONS CONTINUE ON THE EASTERN FRONT
In the wind zone at and above treeline, you'll find you'll find CONSIDERABLE avalanche danger. Human triggered avalanches are PROBABLE on all steep wind drifted slopes, particularly those with an easterly component to their aspect. Any avalanche that breaks into deeper buried weak layers near the ground will result in a scary and very dangerous avalanche that will instantly ruin your day.
MODERATE avalanche danger exists on steep, mid elevation slopes facing the north half of the compass and human triggered avalanches are POSSIBLE.
Here's your exit strategy.... lower elevation terrain might ride a bit shallow, but still offers cold snow and a generally LOW avalanche danger.
Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
Special Announcements
Sad news to report this morning-
On Friday a snowmobiler was tragically killed in an avalanche in the La Sal Mountains of southeastern Utah. Our collective thoughts, prayers, and peaceful energy go out to friends and family of Scott Pehrson Jr., 39, from Monticello. More details are found here.
Weather and Snow
Skies are clear and temperatures in the teens and mid 20's. Northwest winds bumped up slightly right around midnight and blow in the mid to upper 20's along the high peaks. Recent winds have jacked the surface snow in our big, open terrain and high elevation bowls. However, lose some elevation and you'll find riding and turning conditions are excellent right now on wind sheltered, mid elevation slopes.
Above is hourly data from Trial Lake (9,945') and Windy Peak (10,662'). To view more regional weather stations click here.
Recent Avalanches
It's been a very busy week in the western Uinta's with a handful of large, snowmobile triggered slides, resulting in a wrecked sled and few close calls that have experienced riders re-evaluating their terrain choices.
Yesterday, Ted visited this avalanche near Humpy Peak which was triggered by a snowmobiler Friday. The slide averaged 3' deep and was approx. 400' wide, stacking up a huge pile of bone snapping debris. More details are found here.
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Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description
This snowmobile triggered slide in the image above from earlier in the week in Upper Moffit Basin, is the type of avalanche dragon we're dealing with. Once initiated, any avalanche that breaks into deeper buried weak layers in the pack will quickly get out of hand.
We're dealing with a much different avalanche problem than we usually see in the western Uinta's and because of the snowpack structure (strong snow on a thin layer of weak, sugary snow) you don't have to be climbing a slope in order to trigger a large slide. As a matter of fact, with all the recent avalanche activity we're seeing, here's the common theme.... riders are knocking the legs out from underneath the slab and avalanches are getting triggered from low on the slope, in relatively low angle angle terrain. This puts us in a dangerous position on the slope and right in the avalanche cross hairs. So even if we're playing in low angle terrain we need to look around a see if we're connected to steep terrain above or adjacent to where we're riding. We've had multiple near misses and a few close calls this week, and here's the reality.... it's just a matter of time before we run out of luck.
It doesn't mean we can't ride, but it's tricky out there and here's why. Many steep slopes throughout the range experienced a widespread natural avalanche cycle late last week, but recent snow and wind has filled in much of that evidence. So today it's all gonna look white and that's the challenge. You can ride some slopes without incident (perhaps they already slid) and think you're good to go, while an adjacent slope that remained intact throughout the storm, is just waiting for a trigger like us to roll up and tip the balance.
Of course you wanna know... "how do we manage an unmanageable avalanche?" Well with all the great riding out there and plenty of alternative options, we simply avoid the terrain where it exists. You know the drill by now.... steep, rocky, wind drifted slopes, especially those facing the north half of the compass.
This viddy describes our setup.
Avalanche Problem #2
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Recent winds have been all over the place and there's no shortage of snow to blow around and form fresh, stiff drifts along the leeward side of upper elevation ridges and around chutes and gullies. Don't get fooled into thinking today's fresh drifts are the only avalanche dragon you're dealing with. Underneath the new drifts are several layers of old, connected drifts, that once triggered, will break deeper and wider than you might expect. Today you'll want to utilize all the awareness tools in your quiver. Look for obvious clues to unstable snow like shooting cracks out in front of our skis, board, or sled. Also remember to avoid any fat, rounded piece of snow especially if it sounds hollow like a drum. And finally the hugest clue... recent avalanches on the same kind of terrain you want to ride on.
Remember to look around as you ride today and think, the hugest clue to unstable snow is recent avalanches on the same kind of terrain you want to ride on.
Additional Information
Another beautiful day is in store for us and we can expect mostly sunny skies, light northwest winds, and temperatures climbing into the upper 20's. A weak cold front slides through the region tonight, ushering in colder temps for Monday, but little in the way of significant snow. No big storms on tap.
General Announcements
The information in this advisory expires 24 hours after the date and time posted, but will be updated by 7:00 AM Monday January 28th, 2019.
If you're getting out and about, please let me know what you're seeing especially if you see or trigger and avalanche. I can be reached at [email protected] or 801-231-2170
It's also a good time to set up one of our very popular avalanche awareness classes. Reach out to me and I'll make it happen.
This information does not apply to developed ski areas or highways where avalanche control is normally done. This advisory is from the U.S.D.A. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.