Watch how the storm finishes, not only how it starts. The headline number only helps once you know whether a cold front pushing across the divide is the pattern to watch. With a 1220 to 1550 metre elevation band and 330 metres of vertical, the groomers tell the story quickly once the first few laps are done. A seasonal baseline around 8 metres means small clean refills matter more than waiting for a giant number. The swing variable is the overnight low, especially if the storm clears before first lifts. If you are looking beyond the ropes, only chase that angle when the forecast also shows settled wind and stable visibility. Chase it when 5 to 15 cm arrives cold overnight; skip it when warmth follows close behind.
See which resorts in Gunma are getting the best 24 hour totals and the next two days of snow.
