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Forecast for the Salt Lake Area Mountains

Drew Hardesty
Issued by Drew Hardesty on
Tuesday morning, March 10, 2020
Most terrain has a LOW avalanche danger. Areas of MODERATE danger, however, do exist for wind drifts in (but not limited to) the upper elevations. These will be most pronounced on steep northwest to northeast to south facing slopes. Wet avalanches will be possible on the steeper sunlit slopes in terrain with clearing skies today.
Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
Special Announcements
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Join The Utah Avalanche Center at Backcountry HQ on March 12th as Craig Gordon leads an interactive discussion on current Wasatch snowpack conditions, a recap of this season’s close calls and accidents, how to stay on the right side of the fracture line, and predictions for the rest of the season. Space is limited, registration is required. Register HERE.
Weather and Snow
Skies are mostly cloudy with mountain temperatures in the low to mid-20s.
The southwest winds blew 15-20mph with gusts to 35mph overnight but have recently lost some steam. The highest elevation anemometers had sustained hourly averages of 30-45mph with gusts to near 60.
Skiing and riding conditions remain quite good, although areas of Provo experienced more wind damage and greenhousing. The Ogden mountains managed to squeeze out a trace to two during the day yesterday.

For today, expect clouds and winds to diminish by the hour. Temps will be in the mid-20s along the upper ridgelines. We currently sit between a storm to the southwest and the main jet stream to the north and will have fairly torpid weather conditions until the weekend. The weather models suggest a return to snowy weather late Saturday through early week.
Recent Avalanches
Minor sluffing was reported along with a few skier triggered wind slabs in the backcountry yesterday -
Pioneer Peak - 8"x20' wide NE@10k
Dog Lake Chutes - 8"x45' wide NE @9500'
No Name Bowl - 10"x50' wide NE @9500' running on preserved facets (photo 1, Mark White)
One observer noted a fresh glide release on the Raymond Slabs in upper Porter Fork yesterday (photo 2, Matthew Williams)
As always, you can find more details in the Observations and Avalanches tab above and locations of these areas HERE
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Avalanche Problem #1
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Continued winds overnight will keep a mention of wind drifts primarily along the higher elevation bands as well as a few pockets of wind drifts just to the lee of some mid-elevation ridgelines, particularly along the periphery of the Cottonwoods. These drifts may be up to a foot deep and 100' wide and reactive to cornice drops and ski cuts. These should become more stubborn as the day wears on.
Side Note #1: the aspect/elevation rose can be misleading as it applies to topography. Mid-elevation ridgelines can be significantly more wind loaded and dangerous than mid-slopes below terrain with greater relief...even though they are the same elevation. In other words, Reynolds Peak (at 9400') can be way more wind loaded than mid-slope Cardiac Ridge.
Side Note #2: Nat Grainger found odd and unusual loading patterns on Box Elder yesterday (observation) with drifts found in undulations on windward slopes (ie: west and southwest). A long time ski patroller, he was able to recognize, and then both mitigate and avoid these drifts. Learn more about wind drifts here and here.
Side Note #3: some areas received a fair bit of graupel with the storm. This graupel can bounce downhill and pool beneath cliffbands or at significant slope angle transitions (from very steep to moderate) and remain sensitive to provocation briefly after a storm.
Avalanche Problem #2
Wet Snow
Type
Location
Likelihood
Size
Description
Wet snow avalanches can be exceptionally challenging to forecast...particularly with variable cloud cover. I am expecting partly cloudy skies across parts of the range and this will greatly influence the wet avalanche potential. Pay attention to how the snow is behaving under your feet. Look for pinwheels, rollerballs, and punchy snow. Avoid being in or above terrain traps and steep walled gullies.
General Announcements
This information does not apply to developed ski areas or highways where avalanche control is normally done. This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.