Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.3368991°N, 138.6378567°E · Requested elevation: 941 m. Model terrain: 822 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 10.7 87 2 1 1B NW — — 1024 3184 Partly cloudy 44% cloud 06:00 10.1 82 1 0 0B NW 0 0 1024 3181 Partly cloudy 49% cloud 09:00 16 70 4 2 1B E 0 0 1025 3186 Clear 11% cloud 12:00 19 55 4 2 1B E 0 0 1022 3178 Clear 1% cloud 15:00 19.2 56 6 3 1B E 0 0 1020 3171 Clear 5% cloud 18:00 13.8 84 2 1 1B E 0 0 1022 3173 Clear 3% cloud 21:00 11.9 91 1 0 0B NE 0 0 1023 3178 Clear 16% cloud Sunday, 11/10 00:00 10.7 90 1 1 0B W 0 0 1022 3172 Partly cloudy 24% cloud 03:00 10.1 87 3 2 1B W 0 0 1020 3163 Clear 19% cloud 06:00 10 82 4 2 1B W 0 0 1021 3165 Clear 9% cloud 09:00 17.3 61 3 2 1B W 0 0 1022 3175 Clear 2% cloud 12:00 20.6 50 1 1 0B SW 0 0 1019 3169 Partly cloudy 27% cloud 15:00 20.1 56 1 1 1B SE 0 0 1018 3164 Overcast 95% cloud 18:00 15.4 82 0 0 0B SW 0 0 1020 3167 Cloudy 62% cloud 21:00 12.8 88 2 1 1B SW 0 0 1020 3170 Cloudy 54% cloud Monday, 12/10 00:00 11.2 91 1 1 1B S 0 0 1021 3165 Cloudy 54% cloud 03:00 10.7 91 1 1 0B SW 0 0 1021 3160 Partly cloudy 29% cloud 06:00 10.2 92 2 1 1B W 0 0 1021 3164 Partly cloudy 40% cloud 09:00 16.2 77 5 2 1B E 0.00 0 1022 3172 Cloudy 70% cloud 12:00 18.2 70 7 4 2B E 0.07 0 1020 3165 Cloudy 58% cloud 15:00 18.1 72 8 4 2B E 0.03 0 1019 3159 Partly cloudy 41% cloud 18:00 14 92 4 2 1B E 0 0 1021 3162 Partly cloudy 46% cloud 21:00 12.6 96 3 2 1B E 0.01 0 1022 3166 Cloudy 70% cloud Tuesday, 13/10 00:00 12.2 94 2 1 1B SE 0.03 0 1021 3158 Overcast 87% cloud 03:00 11.5 94 1 1 1B S 0 0 1020 3149 Cloudy 77% cloud 06:00 10.8 95 1 0 0B S 0 0 1021 3148 Cloudy 77% cloud 09:00 16 75 4 2 1B E 0 0 1020 3150 Partly cloudy 37% cloud 12:00 18.4 66 8 4 2B E 0 0 1017 3137 Clear 16% cloud 15:00 17.6 74 9 5 2B E 0.04 0 1016 3126 Partly cloudy 45% cloud 18:00 14.5 92 4 2 1B E 0.09 0 1017 3122 Overcast 90% cloud 21:00 13.8 96 4 2 1B SE 0.06 0 1016 3119 Overcast 97% cloud Wednesday, 14/10 00:00 13.5 97 3 1 1B SW 0.29 0 1014 3105 Overcast 98% cloud 03:00 13 96 5 3 1B SW 0.27 0 1012 3086 Overcast 91% cloud 06:00 13.2 95 4 2 1B SW 0.16 0 1011 3079 Overcast 92% cloud 09:00 16.8 83 1 1 1B W 0.19 0 1010 3077 Cloudy 66% cloud 12:00 19.4 76 4 2 1B W 1.0 0 1007 3061 Overcast 96% cloud 15:00 17.6 86 8 4 2B W 5.1 0 1007 3053 Partly cloudy 44% cloud 18:00 13.5 88 9 5 2B W 1.0 0 1010 3057 Partly cloudy 20% cloud 21:00 11.1 89 9 5 2B W 0.08 0 1013 3059 Partly cloudy 27% cloud Thursday, 15/10 00:00 8.9 89 10 5 2B W 0 0 1015 3064 Clear 20% cloud 03:00 7.2 88 9 5 2B W 0 0 1016 3072 Clear 20% cloud 06:00 6.1 90 8 4 2B W 0 0 1019 3085 Partly cloudy 40% cloud 09:00 11.6 65 6 3 2B W 0 0 1020 3104 Clear 8% cloud 12:00 15.4 53 2 1 1B NW 0 0 1018 3108 Clear 3% cloud 15:00 15.6 56 5 3 1B E 0 0 1018 3112 Clear 5% cloud 18:00 11.1 80 2 1 1B E 0 0 1021 3123 Partly cloudy 28% cloud 21:00 9.4 86 1 0 0B S 0 0 1023 3135 Cloudy 52% cloud Friday, 16/10 00:00 8.5 89 2 1 1B S 0 0 1024 3140 Partly cloudy 40% cloud 03:00 7.7 93 2 1 1B S 0 0 1024 3141 Cloudy 70% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Prince Hotels and Resorts Karuizawa is a downhill ski area in Gunma Prefecture, Japan. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 941 to 1156 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.3389802°N, 138.640202°E · Requested elevation: 950 m. Model terrain: 821 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 10.8 87 2 1 1B NW — — 1024 3184 Partly cloudy 44% cloud 06:00 10.1 81 1 0 0B NW 0 0 1024 3181 Partly cloudy 48% cloud 09:00 15.9 70 4 2 1B E 0 0 1025 3186 Clear 11% cloud 12:00 19 55 4 2 1B E 0 0 1022 3178 Clear 1% cloud 15:00 19.1 56 5 3 1B E 0 0 1020 3171 Clear 5% cloud 18:00 13.8 84 2 1 1B E 0 0 1022 3173 Clear 3% cloud 21:00 11.9 91 1 0 0B NE 0 0 1023 3178 Clear 16% cloud Sunday, 11/10 00:00 10.7 90 1 1 0B NW 0 0 1022 3172 Partly cloudy 24% cloud 03:00 10.2 87 3 2 1B W 0 0 1020 3163 Clear 19% cloud 06:00 10 81 4 2 1B W 0 0 1021 3165 Clear 9% cloud 09:00 17.2 61 3 2 1B W 0 0 1021 3175 Clear 2% cloud 12:00 20.5 50 1 0 0B SW 0 0 1019 3169 Partly cloudy 27% cloud 15:00 20.1 56 1 1 1B SE 0 0 1018 3164 Overcast 95% cloud 18:00 15.3 82 0 0 0B SW 0 0 1020 3167 Cloudy 61% cloud 21:00 12.8 88 2 1 1B SW 0 0 1020 3170 Cloudy 53% cloud Monday, 12/10 00:00 11.3 91 1 1 1B S 0 0 1021 3165 Cloudy 55% cloud 03:00 10.8 91 1 1 1B SW 0 0 1021 3160 Partly cloudy 30% cloud 06:00 10.3 92 2 1 1B W 0 0 1021 3164 Partly cloudy 40% cloud 09:00 16.1 77 5 2 1B E 0.00 0 1022 3172 Cloudy 71% cloud 12:00 18.1 71 7 4 2B E 0.07 0 1020 3165 Cloudy 58% cloud 15:00 18 72 8 4 2B E 0.03 0 1019 3159 Partly cloudy 41% cloud 18:00 14 92 4 2 1B E 0 0 1021 3162 Partly cloudy 46% cloud 21:00 12.6 96 3 2 1B E 0.01 0 1022 3166 Cloudy 70% cloud Tuesday, 13/10 00:00 12.2 94 2 1 1B SE 0.03 0 1021 3158 Overcast 86% cloud 03:00 11.6 94 1 1 1B S 0 0 1020 3149 Cloudy 77% cloud 06:00 10.8 94 1 0 0B S 0 0 1021 3148 Cloudy 77% cloud 09:00 15.9 75 4 2 1B E 0 0 1020 3150 Partly cloudy 38% cloud 12:00 18.3 66 8 4 2B E 0 0 1017 3137 Clear 16% cloud 15:00 17.5 74 9 5 2B E 0.04 0 1016 3126 Partly cloudy 45% cloud 18:00 14.5 93 4 2 1B E 0.09 0 1017 3122 Overcast 90% cloud 21:00 13.8 96 4 2 1B SE 0.06 0 1016 3119 Overcast 97% cloud Wednesday, 14/10 00:00 13.4 97 3 2 1B SW 0.30 0 1014 3105 Overcast 98% cloud 03:00 13 96 5 3 1B SW 0.28 0 1012 3086 Overcast 91% cloud 06:00 13.1 95 4 2 1B SW 0.16 0 1011 3079 Overcast 92% cloud 09:00 16.8 83 1 1 1B W 0.20 0 1010 3077 Cloudy 67% cloud 12:00 19.3 76 4 2 1B W 1.0 0 1007 3061 Overcast 96% cloud 15:00 17.5 86 8 4 2B W 5.1 0 1007 3053 Partly cloudy 44% cloud 18:00 13.5 89 9 5 2B W 1.1 0 1010 3057 Partly cloudy 20% cloud 21:00 11.1 89 9 5 2B W 0.08 0 1013 3059 Partly cloudy 27% cloud Thursday, 15/10 00:00 8.8 88 10 5 2B W 0 0 1015 3064 Clear 20% cloud 03:00 7.2 88 9 5 2B W 0 0 1016 3072 Clear 20% cloud 06:00 6.1 89 8 4 2B W 0 0 1019 3085 Partly cloudy 40% cloud 09:00 11.5 65 6 3 2B W 0 0 1020 3104 Clear 8% cloud 12:00 15.3 54 2 1 1B NW 0 0 1018 3108 Clear 3% cloud 15:00 15.5 56 5 3 1B E 0 0 1018 3112 Clear 6% cloud 18:00 11.1 80 2 1 1B E 0 0 1021 3123 Partly cloudy 28% cloud 21:00 9.4 86 1 1 0B S 0 0 1023 3135 Cloudy 52% cloud Friday, 16/10 00:00 8.5 89 2 1 1B S 0 0 1024 3140 Partly cloudy 41% cloud 03:00 7.7 93 2 1 1B S 0 0 1024 3141 Cloudy 70% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.3339879°N, 138.6487035°E · Requested elevation: 1156 m. Model terrain: 799 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 11.6 73 3 2 1B NW — — 1024 3184 Partly cloudy 43% cloud 06:00 11.1 71 3 2 1B NE 0 0 1024 3181 Partly cloudy 49% cloud 09:00 14.5 67 5 3 1B E 0 0 1025 3186 Clear 11% cloud 12:00 17 51 4 2 1B E 0 0 1022 3178 Clear 1% cloud 15:00 17.6 51 5 3 1B E 0 0 1020 3171 Clear 4% cloud 18:00 13.6 75 4 2 1B NE 0 0 1022 3173 Clear 3% cloud 21:00 11.9 87 2 1 1B NE 0 0 1023 3178 Clear 14% cloud Sunday, 11/10 00:00 11.4 83 2 1 1B N 0 0 1022 3172 Partly cloudy 22% cloud 03:00 11.4 75 5 3 1B NW 0 0 1020 3163 Clear 19% cloud 06:00 11.1 71 5 3 1B NW 0 0 1021 3165 Clear 9% cloud 09:00 15.8 58 4 2 1B NW 0 0 1021 3175 Clear 2% cloud 12:00 18.4 53 1 0 0B NW 0 0 1019 3169 Partly cloudy 28% cloud 15:00 18.3 58 1 0 0B NE 0 0 1018 3164 Overcast 95% cloud 18:00 14.8 78 0 0 0B NW 0 0 1020 3167 Cloudy 62% cloud 21:00 12.8 85 2 1 1B SW 0 0 1020 3170 Cloudy 54% cloud Monday, 12/10 00:00 11.6 87 3 2 1B S 0 0 1021 3165 Cloudy 55% cloud 03:00 11.3 86 2 1 1B SW 0 0 1021 3160 Partly cloudy 29% cloud 06:00 11 85 3 2 1B W 0 0 1021 3164 Partly cloudy 40% cloud 09:00 14.5 79 4 2 1B SE 0.00 0 1022 3172 Cloudy 73% cloud 12:00 16.1 75 6 3 2B E 0.08 0 1020 3165 Cloudy 59% cloud 15:00 16.4 72 7 4 2B E 0.03 0 1019 3159 Partly cloudy 40% cloud 18:00 13.4 87 6 3 2B E 0 0 1021 3162 Partly cloudy 44% cloud 21:00 12 94 6 3 2B SE 0.01 0 1022 3166 Cloudy 70% cloud Tuesday, 13/10 00:00 11.9 88 5 3 1B SE 0.03 0 1021 3158 Overcast 86% cloud 03:00 11.7 88 3 1 1B SW 0 0 1020 3149 Cloudy 76% cloud 06:00 11.2 89 2 1 1B S 0 0 1021 3148 Cloudy 77% cloud 09:00 14.5 76 4 2 1B SE 0 0 1020 3150 Partly cloudy 39% cloud 12:00 16.3 72 7 4 2B E 0 0 1017 3137 Clear 16% cloud 15:00 15.8 78 9 5 2B E 0.04 0 1016 3126 Partly cloudy 46% cloud 18:00 13.5 94 7 4 2B SE 0.08 0 1017 3123 Overcast 90% cloud 21:00 13 96 7 4 2B SE 0.06 0 1016 3119 Overcast 97% cloud Wednesday, 14/10 00:00 12.8 93 9 5 2B SW 0.31 0 1014 3105 Overcast 98% cloud 03:00 12.3 94 12 6 2B W 0.29 0 1012 3086 Overcast 92% cloud 06:00 12.4 94 12 7 2B SW 0.17 0 1011 3079 Overcast 93% cloud 09:00 15.6 82 8 5 2B W 0.21 0 1010 3077 Cloudy 69% cloud 12:00 17.9 78 10 5 2B W 0.95 0 1007 3061 Overcast 95% cloud 15:00 16.2 85 14 7 3B W 5.1 0 1007 3053 Partly cloudy 43% cloud 18:00 12.4 87 13 7 3B W 1.1 0 1010 3057 Clear 19% cloud 21:00 10.2 85 13 7 3B W 0.08 0 1013 3059 Partly cloudy 26% cloud Thursday, 15/10 00:00 8.3 82 14 8 3B W 0 0 1015 3064 Clear 18% cloud 03:00 6.8 80 14 7 3B W 0 0 1016 3072 Clear 18% cloud 06:00 5.8 82 12 7 2B W 0 0 1019 3086 Partly cloudy 38% cloud 09:00 9.9 64 9 5 2B W 0 0 1020 3104 Clear 8% cloud 12:00 13.2 58 4 2 1B W 0 0 1018 3108 Clear 3% cloud 15:00 13.5 61 4 2 1B E 0 0 1018 3112 Clear 6% cloud 18:00 10.2 81 4 2 1B E 0 0 1021 3123 Partly cloudy 29% cloud 21:00 8.8 87 4 2 1B SE 0 0 1023 3135 Cloudy 53% cloud Friday, 16/10 00:00 8.3 89 4 2 1B S 0 0 1024 3140 Partly cloudy 40% cloud 03:00 7.9 89 5 3 1B S 0 0 1024 3142 Cloudy 70% cloud |
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