"From Thursday through Friday night, models are converging on a lighter opener, then converging again on a stronger ramp-up early Saturday that continues through Sunday night. The Thursday-Friday period looks modest, with many resorts landing near 0 cm to 10 cm and favored western Hokkaido pockets closer to 10 cm to 15 cm."
"Saturday into Sunday is the first major cycle: guidance agrees on timing, while intensity spread is moderate and highest in Hokkaido. A realistic regional signal is 20 cm to 70 cm for Hokkaido and 10 cm to 30 cm for many Honshu resorts by late Sunday. Snow-level guidance is converging on a drop toward 0 meters to 300 meters by Saturday night."
"Guidance is generally aligned on timing through Tuesday night, so skiers can plan around two primary snowfall windows instead of scattered one-off bursts. The weekend wave favors Hokkaido first, then snowfall broadens and shifts with a second push that leans more toward central and northern Honshu."
Japan faces a two-wave snow cycle through Tuesday night with reliable timing for planning. The first wave arrives Thursday through Sunday, starting lighter with 0-15 cm Thursday-Friday, then intensifying Saturday-Sunday with 20-70 cm expected in Hokkaido and 10-30 cm in many Honshu resorts. Snow levels drop from 100-700 meters to near 0-300 meters by Saturday night, with strong ridge gusts of 60-90 km/h. A second, colder wave follows Monday-Tuesday, focusing on central and northern Honshu. Model guidance shows strong convergence on timing through Tuesday, enabling reliable forecasting, though confidence decreases afterward with more speculative totals in northern zones.
#japan-snow-forecast #two-wave-snow-cycle #hokkaido-and-honshu-snowfall #ski-conditions #weather-timing-and-planning
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