At crowded ski resorts, off-piste new snow will be tracked out within hours of a fresh fall but wherever crowds are light in relation to the accessible terrain, it will be possible to stay fresh much later, perhaps several days later. If you see a report of powder or fresh snow conditions several days after snow last fell, there is usually a good reason. You will be able to predict whether to expect off-piste powder, slush, spring snow, ice or wind crust.

It shows how much snow we think fell then, and the way freezing level, wind and weather have varied through time. The hindcast shows when our weather model last predicted snowfall at Keystone. This detailed weather log makes it easy to predict snow conditions at Keystone, even when the snow report is too old to be useful. Members can check the hindcast for a timeline of Keystone weather conditions. If these details are missing from the Keystone snow report, you can predict off-piste conditions using the snow depth, the date of the most recent snowfall at Keystone, the Keystone weather report and the forecast. Piste and off-piste are often different so we ask snow reporters to describe Keystone piste and off-piste conditions separately. You can submit an updated snow report here. The snow report describes the piste and off-piste ski conditions at Keystone.

Keystone resort