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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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Loon Mountain at 930 m altitude
Issued by Snow-Forecast.com at: 12 pm (local time) / 17 Dec 2025
Now
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  |  | | | | | | | | | |
cloudy | light snow | snow shwrs | some clouds | some clouds | light rain | heavy rain | light snow | light snow | snow shwrs | cloudy | light snow | light snow | light snow | light snow | light snow | light snow | snow shwrs | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 3 | 5 | — | — | 2 | — | 2 | 2 | — | — | — | |
— | — | — | — | — | 4 | 16 | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -1 | -2 | -3 | 3 | 2 | 5 | 7 | 0 | -8 | -9 | -5 | -5 | -5 | -9 | -11 | -14 | -15 | -14 |
min °C | -1 | -2 | -7 | 2 | 1 | 1 | 7 | -2 | -14 | -11 | -6 | -5 | -5 | -11 | -15 | -15 | -16 | -15 |
-8 | -10 | -17 | -4 | -7 | -7 | 1 | -9 | -28 | -23 | -11 | -14 | -13 | -23 | -28 | -28 | -28 | -27 | |
87 | 99 | 46 | 30 | 37 | 99 | 99 | 91 | 95 | 47 | 38 | 79 | 89 | 86 | 95 | 90 | 94 | 64 | |
650 | 700 | 0 | 1850 | 0 | 2300 | 2500 | 950 | 0 | 0 | 0 | 0 | 350 | 0 | 0 | 0 | 0 | 0 | |
 | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | 4:08 | — | — | 4:08 | — | — | 4:09 | — | — | 4:09 | — | — | 4:09 | — | — | 4:10 | — |
Next 0-3 days weather summary:
Heavy rain (total 20.0mm), mainly falling Fri morning. Becoming colder with a light covering of snow, mostly falling on Fri night. Freeze-thaw conditions (max 7°C on Fri morning, min -14°C on Fri night). Winds increasing (light winds from the WSW on Wed night, gales from the NW by Fri night).
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Sun afternoon. Temperatures will be below freezing (max -5°C on Sat afternoon, min -16°C on Mon afternoon). Winds increasing (light winds from the WNW on Sat afternoon, near gales from the WNW by Sun night).
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Snow Radar
Latest snow reports near Loon Mountain:
Loon Mountain Snow Conditions
| Top snow depth: | 61 cm |
|---|---|
| Bottom snow depth: | 46 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 14 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - New Hampshire are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
1.7 | Bluebird days Average snow, mostly sunny, light wind. |
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Loon Mountain Forecast Snowfall
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Other resorts in USA - New Hampshire are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Loon Mountain at the specific elevation of 930 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Loon Mountain. 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.
Visitor Reviews of Loon Mountain
Overall 4.4 Based on 2 votes and 2 reviews
- Snowsure
- Variety of pistes
- Vote
- Duncan Stafford from United Kingdom writes:
'Eriously snowy to be honest with! Tattled on the Loonsville is something to be experienced by both young and old. Double drop and let the Loon Mountain take you to the top!
Visitor Reviews of Loon Mountain
Duncan Stafford from United Kingdom writes:
'Eriously snowy to be honest with! Tattled on the Loonsville is something to be experienced by both young and old. Double drop and let the Loon Mountain take you to the top!
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