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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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Sylvan Hill at 380 m altitude
Issued by Snow-Forecast.com at: 11 am (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 | |
 |  |  |  | | | |  | | |  | | | |  | | |  | |
light rain | light snow | light snow | cloudy | cloudy | light snow | cloudy | some clouds | light snow | some clouds | clear | light snow | light snow | cloudy | some clouds | some clouds | some clouds | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 0 | -8 | -10 | -8 | -3 | -1 | -5 | -15 | -12 | -10 | -7 | -2 | -1 | 0 | -1 | -2 | -5 |
min °C | 3 | -5 | -14 | -12 | -8 | -7 | -3 | -11 | -16 | -15 | -13 | -14 | -5 | -2 | -1 | -2 | -6 | -6 |
-2 | -12 | -26 | -22 | -14 | -14 | -9 | -22 | -28 | -24 | -16 | -14 | -12 | -9 | -7 | -8 | -10 | -9 | |
100 | 84 | 89 | 80 | 63 | 76 | 90 | 63 | 82 | 84 | 73 | 82 | 72 | 75 | 92 | 82 | 71 | 81 | |
2100 | 350 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
 | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — |
 | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — | — | 4:20 | — |
Next 0-3 days weather summary:
Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 5°C on Thu morning, min -16°C on Sat night). Winds increasing (light winds from the SW on Fri afternoon, strong winds from the WNW by Sat afternoon).
Next 4-6 days weather summary:
A dusting of new snow. Temperatures will be below freezing (max 0°C on Mon night, min -15°C on Sun morning). Winds increasing (calm on Sun night, fresh winds from the SSW by Mon afternoon).
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Snow Radar
Latest snow reports near Sylvan Hill:
Sylvan Hill Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 12 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - Wisconsin 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. |
|---|---|
0.6 | Powder days Fresh snow, limited sun, any wind. |
1.8 | Bluebird days Average snow, mostly sunny, light wind. |
Sylvan Hill Forecast Snowfall
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Other resorts in USA - Wisconsin are reporting: powder (0) / good piste (1)
The above table gives the weather forecast for Sylvan Hill at the specific elevation of 380 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sylvan Hill. 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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