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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Split Rock at 556 m altitude
Issued by Snow-Forecast.com at: 12 pm (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | |  |  | | | | |  | | | | |
clear | cloudy | heavy rain | rain shwrs | light snow | snow shwrs | some clouds | cloudy | some clouds | snow shwrs | snow shwrs | some clouds | clear | cloudy | light snow | light snow | cloudy | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | |
— | — | 20 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 6 | 11 | 5 | -4 | -4 | 1 | 2 | 2 | -1 | -6 | -7 | -4 | -4 | -3 | 0 | 1 | 1 |
min °C | 4 | 5 | 6 | 2 | -7 | -8 | -2 | 1 | 0 | -2 | -8 | -8 | -6 | -4 | -4 | -2 | 0 | -3 |
0 | 0 | 1 | -4 | -18 | -19 | -7 | -4 | -7 | -10 | -18 | -18 | -14 | -10 | -6 | -9 | -7 | -12 | |
60 | 78 | 92 | 92 | 88 | 81 | 52 | 50 | 64 | 75 | 73 | 76 | 51 | 46 | 48 | 82 | 91 | 65 | |
2700 | 2850 | 2500 | 1350 | 50 | 0 | 0 | 1850 | 1900 | 500 | 0 | 0 | 0 | 0 | 0 | 0 | 550 | 500 | |
 | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — |
 | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — |
Next 0-3 days weather summary:
Heavy rain (total 28.0mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Fri afternoon. Freeze-thaw conditions (max 11°C on Thu night, min -8°C on Fri night). Winds decreasing (near gales from the S on Thu night, light winds from the WSW by Sat morning).
Next 4-6 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 1°C on Tue afternoon, min -8°C on Sun afternoon). Winds increasing (calm on Mon night, strong winds from the NNW by Tue night).
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Snow Radar
Latest snow reports near Split Rock:
Split Rock Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - Pennsylvania are reporting: powder (0) / good piste (1)
Snow History
Week 3 of December has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
1.6 | Bluebird days Average snow, mostly sunny, light wind. |
Split Rock Forecast Snowfall
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Other resorts in USA - Pennsylvania are reporting: powder (0) / good piste (1)
The above table gives the weather forecast for Split Rock at the specific elevation of 556 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Split Rock. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of United States.
Click here to read further information on freezing levels and how we forecast our temperatures.
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