Our Week in Review highlights significant snowfall, weather, and avalanche events of the previous week. (Click here to review the archived forecasts for the Salt Lake mountains.) The danger roses for the Salt Lake mountains from Friday, January 17 through Thursday, January 23, 2020: Summary: An over-producing storm system on Friday, January 17, with additional snowfall midweek. Snow and water totals for the period include: - Upper Cottonwoods: 24 - 36" snow with 2.4 - 3.4" water - Park City Ridgeline: 16 - 20" snow with 1.3 - 1.5" water We are very sad …

Our Week in Review highlights significant snowfall, weather, and avalanche events of the previous week. (Click here to review the archived forecasts for the Salt Lake mountains.) The danger roses for the Salt Lake mountains from Friday, January 10 through Thursday, January 16, 2020: Summary: A very stormy period, with strong winds arriving early in the week, persisting throughout the week. Several natural and human-triggered avalanches, with a few breaking down into old snow down near the ground. Selected snow and water totals since Jan 1: - Upper Cottonwoods …

Our Week in Review highlights significant snowfall, weather, and avalanche events of the previous week. (Click here to review the archived forecasts for the Salt Lake mountains.) The danger roses for the Salt Lake mountains from Friday, January 3 through Thursday, January 9, 2020: Summary: Widespread human-triggered avalanche activity, as well as some natural avalanches, occurring on southerly aspects where a combination of facets and crusts exists and is buried down 12-18" deeply. What is unusual for this activity is that southerly aspects are generally the slopes we …

Our Week in Review highlights significant snowfall, weather, and avalanche events of the previous week. (Click here to review the archived forecasts for the Salt Lake mountains.) The danger roses for the Salt Lake mountains from Friday, December 27, 2019 through Thursday, January 2, 2020: Summary: Cold and cloudy with light snowfall early in the period. The snow surface consists of loose, weak new snow that sluffs easily on steeper aspects. The persistent weak layer that is found at mid and upper elevation aspects facing northwest through east appears to be dormant …

In this podcast, we sit down with retired economist Peter Donner and retired meteorologist Larry Dunn to talk about forecasting in the economic terms of gain and loss, risk and reward. What's the goal of forecasting - accuracy or outcome? How do you impact decision making--not to mention your reputation--with forecasts that are overly cautious or not cautious enough? This conversation was inspired by last winter's Low Danger series and Peter's subsequent essay, "Bias, Variance, and Loss in Avalanche Forecasting," included below. Bias, Variance and Loss in …

Our Week in Review highlights significant snowfall, weather, and avalanche events of the previous week. (Click here to review the archived forecasts for the Salt Lake mountains.) The danger roses for the Salt Lake mountains from Friday, December 20 through Thursday, December 26, 2019: Summary: Warming temperatures and sustained winds out of the south through early in the week. Snowfall begins late Monday afternoon, persisting through Wednesday. Storm totals are: 15" in the Cottonwoods (highest amounts of mid Big Cottonwood canyon) 10" along Park City …