
Read the freezing level before anything else here. With more than a kilometre of vertical between village and summit, the live forecast can show one temperature for the resort while the actual conditions split in two: cold dry sea-effect snow up top, slushy refrozen ruts on the lower runs. That makes this one of the few places where a marginal-looking storm can still be a great day, as long as you stay above the mid-station gondola. If the forecast shows zero or below at the base for the whole cycle, that is a full top-to-bottom day worth booking around.
See which resorts in Nagano are getting the best 24 hour totals and the next two days of snow.