Forecast for the Uintas Area Mountains

Craig Gordon
Issued by Craig Gordon for
Friday, February 2, 2018

At and above treeline, in mid and upper elevation terrain, the avalanche danger is MODERATE. Human triggered avalanches are possible on steep, wind drifted slopes, especially those facing the north half of the compass and particularly those with an easterly component to their aspect. Once triggered, today's avalanches can quickly get out of hand if they break into weak layers of snow now buried several feet deep in our snowpack.

Most wind sheltered mid and low elevation terrain, especially south facing slopes offer generally LOW avalanche danger.

Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
Special Announcements

Recent avalanche activity didn't agree with my early retirement or notion of taking a day off... I'm back and we'll return to our regularly schedule programming :)

Please join us 6:00-9:00 PM, Tuesday Feb. 6th at Weller's Recreation for our Companion Rescue class. Details and registration are found here.

Weather and Snow

Skies are cloudy and temperatures in the mid to upper 20's. West-southwest winds started decreasing around 1:00 this morning and currently blow 20-30 mph along the high ridges. Recent winds blasted our big open bowls, but soft settled snow still exists on wind sheltered, mid elevation, shady terrain.

Above are 24 hour temperatures and snow depth from Trial Lake along with winds and temperatures from Windy Peak. More remote Uinta weather stations are found here

Weston D and Company were in Upper Weber Canyon yesterday and found gray skies and an interesting snowpack structure. More on their travels as well as a great body of recent trip reports, observations, and snow data found here.


Recent Avalanches


John Mletschnig was in Millcreek yesterday near Dead Man Pass and found this day old sled triggered slide which broke 3'-4' deep and approx 300' wide. More on this slide here. (Mletschnig​ photo)


And longtime listener, first time caller David Guidry spotted this slide triggered low on the slope near the Mill Hollow trailhead. Thanks Dave... I really appreciate your great info!


In addition, I spotted this recently triggered slide in Chalk Creek.

These slides follow the recent pattern of human triggered avalanches, initiated low on the slope and breaking to our midpack facet/crust weakness.

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

I was in Chalk Creek yesterday and got eyes on this day old sled triggered slide on a steep, east-northeast facing slope. All the avalanches i've seen the past few days continue in the theme of being triggered low on the slope and they're breaking above riders, who are sometimes on an adjacent slope... spooky for sure. Snowpit tests, hit or miss avalanche activity, and tracks on slopes are inconclusive and often suggest stability. That said, I wouldn't bet my life on any of these pieces of information because the biggest clues to avalanches is.... avalanches!

One thing for sure is... our persistent weakness, now buried 2'-3' deep in the midpack, isn't in a hurry to heal. Once triggered, an avalanche breaking into these layers will quickly get out of hand and instantly ruin our day. The most likely suspects are steep, wind drifted slopes facing north half of the compass. Since this avalanche dragon is unpredictable, the best offense is a good defense... you simply avoid it. Swing around to lower elevation slopes or choose low angle terrain with no steep slopes above or adjacent to the slopes your riding. (Gordon photo)

Avalanche Problem #2
Wind Drifted Snow
Type
Location
Likelihood
Size
Description

Not particularly widespread, there may be a old tired wind slab sensitive our additional weight. Found mostly on the leeward side of upper elevation ridges, today you'll want to look for and avoid any fat, rounded piece of snow, especially if it sounds hollow like a drum.

Additional Information


The area remains under a northwest flow. Skies will be mostly cloudy today ahead of an approaching weak storm system. High reach into the upper 30's and northwest winds decrease into the 20'a and 30's throughout the day Today's system makes its way through the area overnight through Saturday morning, bringing a quick shot of light snow. Moisture lingers over northern Utah over the weekend, keeping the possibility of light snow in the forecast. Another fast moving storm system moves across the area Monday night into Tuesday.

General Announcements

The information in this advisory expires 24 hours after the date and time posted, but will be updated by 7:00 AM Saturday February 3rd, 2018.

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.