Start with the upper-mountain wind and cloud line. The headline number only helps once you know whether a cold inland trough is the pattern to watch. With a 1220 to 1748 metre elevation band and 528 metres of vertical, the sheltered trees make modest reloads feel deeper than the raw number. A seasonal baseline around 8 metres means small clean refills matter more than waiting for a giant number. The swing variable is whether the upper lift can run with enough visibility to make the top worth using. With patrol boundaries in play, focus on how the inbounds snow will hold through the first half of the day. Chase it when 5 to 15 cm lands overnight with light to moderate wind; if gusts climb, make it a sheltered-tree day.
See which resorts in Nagano are getting the best 24 hour totals and the next two days of snow.
