February 27, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (February 21 - February 27, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (February 21 - February 27, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates.
Overall Summary:
The week was dominated by CONSIDERABLE avalanche danger, driven by multiple buried weak layers, wind-drifted snow, and increasing wet snow instabilities due to strong sunshine and warm temperatures. A Special Avalanche Bulletin remained in effect for several days following a week of heavy …
Read more February 20, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (February 14 - February 20, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (February 14 - February 20, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates.
Overall Summary:
It was an intense week in the mountains, with a series of storms bringing heavy snowfall, strong winds, and rapidly evolving avalanche conditions.
The week kicked off with an Avalanche Warning on Friday as a storm moved in, pushing avalanche danger to HIGH at upper elevations. By …
Read more February 13, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (February 7 - February 13, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (February 7 - February 13, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates.
Overall Summary:
A potent storm Friday delivered 6–19 inches of heavy snow, rapidly loading an already unstable snowpack triggering a widespread avalanche cycle and bumping danger to CONSIDERABLE for much of the week. Saturday saw numerous large and dangerous slides, including a fatal avalanche in East Bowl …
Read more February 6, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (January 31 - February 6, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (January 31 - February 6, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates.
Overall Summary:
A powerful winter storm brought heavy snow, strong winds, and rapidly changing avalanche conditions beginning Saturday, February 1. The week began with MODERATE danger but quickly escalated to CONSIDERABLE as 7-12 inches of snow and 70+ mph winds created reactive wind slabs on weak, faceted snow. …
Read more January 30, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (January 24 - January 30th, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (January 24 - January 30th, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates.
Overall Summary:
A week of shifting conditions in the Wasatch brought moderate avalanche danger, with wind-drifted snow and persistent weak layer concerns dominating the forecast. Early in the period, strong winds and light snowfall contributed to isolated instability, with a small skier-triggered slide on …
Read more January 26, 2025
Understanding the Risk of Persistent Weak Layer Avalanches
Paige Pagnucco
If you’ve been following the avalanche forecast this season, you’ve noted that Utah, and much of the Intermountain West, is dealing with a persistent weak layer avalanche problem that has been producing large, destructive avalanches. Tragically, some of these have been deadly. You’ve probably also heard a common trend among avalanche forecasters advising backcountry riders to avoid “thin and rocky areas, where you are more likely to trigger an avalanche.” In this blog post, we will discuss what’s going on with persistent weak layer avalanches and why thin spots are so dangerous. …
Read more January 23, 2025
Week in Review: Avalanche Conditions and Snowpack Developments (January 17th - January 23rd, 2025)
Nikki Champion
Week in Review: Avalanche Conditions and Snowpack Developments (January 17th - January 23rd, 2025)
Each week, we look back at the key snowfall, weather, and avalanche events from the previous week. For archived forecasts, visit the Salt Lake Mountains’ past updates HERE.
Overall Summary:
This week brought a mix of storms, strong winds, and frigid temperatures, with avalanche danger holding at MODERATE for mid and upper elevations. A sleeper storm on Saturday delivered 24 inches of low-density snow to the Upper Cottonwoods, leading to wind-drifted soft slabs and dry-loose …
Read more