Mid-November Japan Sea System

1. Day 3·Nov 12·Watching·67cm(+35)

   Forecast: 66.6cm for Hakuba, 66.6–61.5cm window Nov 18–22

   Day 3: totals up 34.9cm since the previous entry and the window start moved a day earlier. Our current prediction for the mid-November Japan Sea System is a window from November 18 to November 22, with Hakuba leading at 66.6cm, followed closely by Happo-One at 61.5cm. Other resorts like Kiroro and Appi Kogen are also showing promising totals, but confidence remains at a watch level across the board. We will continue to monitor trends and updates as we approach the opening of the window.

   Window Nov 18–22 · Hakuba

2. Day 2·Nov 11·Watching·32cm(-30)

   Forecast: 31.7cm for Kiroro, 31.5–31.6cm window Nov 19–21

   Day 2: the top total is down 29.8cm since the previous entry, and the window start has moved one day later. For the upcoming window from November 19 to 21, we expect Kiroro to receive 31.7cm, with a range of 13.5–48.2cm, while Happo-One is projected at 31.6cm, ranging from 0.6–75.8cm. Hakuba is also forecasted for 31.5cm, with a similar range of 0.6–75.3cm. Confidence remains at 'watching' for Happo-One and Hakuba, while Kiroro's confidence is likely. We will continue to monitor the trends closely as we approach the event.

   Window Nov 19–21 · Kiroro

3. Day 1·Nov 10·Watching·62cmFirst prediction

   Forecast: 61.5cm for Happo-One, 12.2–109.5cm window Nov 18–21

   The prediction for the mid-November Japan Sea System indicates a total of 61.5cm for Happo-One, with a range of 12.2–109.5cm during the window from November 18 to 21. This pattern typically brings consistent snowfall to the region, benefiting resorts with favorable conditions. Happo-One and Hakuba are positioned to receive the most snow, both forecasted at 60.7cm, while Kiroro, NEKOMA Mountain, Geto Kogen, and Zao are expected to see lesser totals, with Zao at 31.3cm. A shift in the storm's trajectory or intensity could alter these predictions significantly.

   Window Nov 18–21 · Happo-One

snowrain low, snow highraindryThe dots are the freeze line — the height where rain turns to snow. Solid: straight from the models. Hollow: estimated from temperature. Above the summit line it rains on the whole mountain; below the base line it snows all the way down. Blue bars are snow in cm, amber bars rain in mm; the totals above are their sums.

Enlarge rain / snow line

• LiveHappo-Onebiggest day 27cm on 20 Nov · on trackPredicted75cm5–172cm, models far apart
• LiveTogakushibiggest day 19cm on 20 Nov · delayedPredicted50cm13–111cm across the models
• LiveKirorobiggest day 15cm on 19 Nov · on trackPredicted47cm27–79cm across the models
• LiveAppi Kogenbiggest day 12cm on 20 Nov · newPredicted39cm9–83cm across the models
• LiveKagurabiggest day 19cm on 21 Nov · on trackPredicted37cm3–80cm, models far apart
• LiveMyoko Kogenbiggest day 21cm on 21 Nov · on trackPredicted37cm0–89cm, models far apart
• LiveNiseko Hanazono Resortbiggest day 12cm on 19 Nov · on trackPredicted34cm19–52cm across the models
• LiveNiseko Villagebiggest day 11cm on 19 Nov · on trackPredicted29cm11–48cm across the models
• LiveNiseko Grand Hirafubiggest day 11cm on 19 Nov · on trackPredicted29cm11–48cm across the models