Little Cottonwood Canyon Circuit

The two most important data sources for this trip — the Utah Avalanche Center bulletin and the NWS weather forecast — are both unavailable right now. That's not a minor gap. Avalanche danger rating, identified problems, aspect/elevation guidance, and the temperature and wind data needed to assess loading and wet slide timing are all missing. The UAC bulletin page does note the generic advisory: watch for recent avalanches, cracking, and audible collapsing, and avoid traveling on or under similar slopes. That's the fallback language they post when no formal rating exists, not a green light.

The SNOTEL picture is complicated by what looks like a data mismatch. The 'Long Lake' station is logging 95 inches depth and 39.7 inches SWE at 840 feet elevation — that doesn't correspond to any station near Little Cottonwood Canyon; those numbers are likely from a different geographic region entirely and should be ignored for LCC planning. Annie Springs at 6,021 feet shows 14 inches depth with a falling trend, which at late April in the Wasatch likely reflects melt and consolidation rather than fresh accumulation. The McNeil Canyon station at 1,348 feet is essentially bare. Snowpack in LCC proper will be deeper than these lower-elevation stations suggest, but without a relevant high-elevation station (Cardiff Ridge, Snowbird, or similar) it's hard to characterize what you're actually skiing into.

Late April in LCC means wet avalanche conditions are a real concern regardless of what any bulletin says on a given day. April solar radiation and warming temperatures drive wet loose and wet slab cycles on sun-exposed aspects, typically accelerating after 11 AM on south and west faces. Without the NWS forecast you can't assess whether a warming event is incoming, whether overnight refreeze is happening, or whether wind loading has built any fresh slabs. These aren't questions you can skip.

Do not leave for this trip without a current UAC bulletin and a 3-day NWS forecast in hand. Check utahavalanchecenter.org and forecast.weather.gov for the Salt Lake mountains zone. If the bulletin comes back Moderate or lower with no identified problems, LCC in late April with 13+ hours of daylight and stable flows is a great setup — get an early start to work north aspects before solar warming hits the upper cirques. But right now you're flying blind on the two inputs that matter most.