Hakuba weather
Checking forcasts is a daily routine when staying at the snow. There are quite a few options for weather websites. The one we have on our website is reasonably accurate however it does not seem to take into account the amount of moisture that is picked up out of the Japanese Sea when the big cold air masses from Siberia make their way over here. It usually underestimates the amount of snowfall which is good because it means I don’t get my hopes up.
When checking conditions click onto the snow forecast emblem on our home page.
Hakuba Blog 
When 20cm is forecast it usually snows at least twice that!