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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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Great Bear Ski Valley at 457 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 snow | light snow | clear | cloudy | some clouds | cloudy | some clouds | clear | clear | some clouds | light snow | light snow | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -6 | -11 | -9 | -4 | 0 | 5 | 0 | 0 | -5 | -3 | -1 | 1 | 4 | 6 | 4 | -1 | 0 | 1 |
min °C | -8 | -11 | -10 | -7 | -2 | 1 | 0 | -2 | -6 | -6 | -1 | 0 | 1 | 5 | 0 | -2 | -1 | -1 |
-19 | -23 | -20 | -7 | -10 | -6 | -7 | -9 | -13 | -6 | -6 | -7 | -6 | 1 | -4 | -6 | -5 | -6 | |
80 | 83 | 42 | 42 | 50 | 59 | 57 | 57 | 48 | 54 | 52 | 53 | 71 | 72 | 78 | 69 | 60 | 79 | |
0 | 0 | 0 | 0 | 0 | 2850 | 400 | 500 | 0 | 0 | 0 | 600 | 3050 | 3000 | 2350 | 0 | 0 | 0 | |
 | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:52 | — | — |
 | — | 4:45 | — | — | 4:45 | — | — | 4:46 | — | — | 4:46 | — | — | 4:47 | — | — | 4:47 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 5°C on Fri night, min -11°C on Thu afternoon). Winds decreasing (near gales from the NW on Thu afternoon, calm by Fri morning).
Next 4-6 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 6°C on Mon afternoon, min -6°C on Sun morning). Winds increasing (calm on Sun morning, fresh winds from the S by Sun night).
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Snow Radar
Latest snow reports near Great Bear Ski Valley:
Great Bear Ski Valley Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - South Dakota are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
1.1 | Bluebird days Average snow, mostly sunny, light wind. |
Great Bear Ski Valley Forecast Snowfall
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Other resorts in USA - South Dakota are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Great Bear Ski Valley at the specific elevation of 457 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Great Bear Ski Valley. 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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