There's too much uncertainty. Two to three inches of snow-water-equivalent over the past week and strong southerly pre-frontal winds Saturday night into Sunday have clearly stressed - at the very least - thinner snowpack areas or areas that have avalanched previously this winter. At least five avalanches - some natural, some human triggered - have stepped into older faceted snow the last two days (Toots, Davis Gulch, West Monitor, mid-LCC control work, skier remote in the Provo mountains - all northwest through east). Loud, deep, guttural collapsing of these layers continued into yesterday, offering little reassurance of, well, much.
Monday's Toots-To-Boot avalanche very well demonstrates the mercurial character of a persistent slab avalanche. The very experienced party skied on low thirty-degree terrain and it wasn't until the second person on the slope skied that it propagated back up and across the landscape to where the terrain reached the 44° steep headwall, pulling the whole thing down 300' wide. Standing just off to the side, the first skier watched the slide roar down, coming within 10' feet from where he was standing.
Spatial variability exists across the range and across the slope. Areas most suspect are drainages of Mill Creek canyon, the Park City ridgeline, Summit Park, Mt Aire, Snake Creek - all areas along the periphery of the Cottonwoods. This is not to say the Cottonwood get the hall-pass; it's just that many riders may be able to get away with more...until they can't anymore. This structure showed its cards with noticeable stress cracks as low in 8500' . Slope-scale, the strength and structure can vary widely and wildly across the slope - many areas we dug near the Toots avalanche were not that alarming.