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 2026-10-10 06:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.8112067°N, 139.2292589°E · Requested elevation: 950 m. Model terrain: 1308 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
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 15:00 20.3 59 6 3 1B W — — 1020 3171 Partly cloudy 21% cloud 18:00 14.1 87 1 1 1B N 0.00 0 1022 3174 Partly cloudy 33% cloud 21:00 11.6 88 2 1 1B E 0.02 0 1023 3177 Partly cloudy 37% cloud Sunday, 11/10 00:00 9.6 83 3 2 1B NE 0 0 1021 3170 Partly cloudy 35% cloud 03:00 9.8 70 4 2 1B NE 0 0 1021 3164 Clear 7% cloud 06:00 9.4 70 6 3 1B NE 0 0 1021 3165 Clear 1% cloud 09:00 18.3 49 4 2 1B NW 0 0 1022 3175 Clear 0% cloud 12:00 21.4 42 6 3 2B NW 0 0 1020 3170 Clear 0% cloud 15:00 20 52 6 3 2B NW 0 0 1019 3160 Clear 4% cloud 18:00 13.3 81 3 2 1B NE 0 0 1021 3168 Clear 15% cloud 21:00 11.5 84 2 1 1B E 0.00 0 1021 3168 Partly cloudy 28% cloud Monday, 12/10 00:00 10.8 80 4 2 1B NE 0 0 1021 3163 Cloudy 73% cloud 03:00 8.8 73 2 1 1B NE 0 0 1020 3159 Partly cloudy 22% cloud 06:00 9.5 61 1 1 1B NE 0 0 1020 3161 Partly cloudy 29% cloud 09:00 17.4 51 3 2 1B SW 0 0 1021 3169 Partly cloudy 45% cloud 12:00 19.7 58 5 3 1B W 0 0 1019 3161 Overcast 92% cloud 15:00 17.9 71 4 2 1B W 0 0 1019 3154 Overcast 95% cloud 18:00 13.9 89 2 1 1B SE 0 0 1020 3160 Cloudy 70% cloud 21:00 13.6 91 3 2 1B SW 0.03 0 1021 3160 Overcast 95% cloud Tuesday, 13/10 00:00 13.1 90 2 1 1B SW 0.13 0 1020 3152 Overcast 100% cloud 03:00 11.5 89 2 1 1B NE 0.01 0 1019 3143 Cloudy 77% cloud 06:00 9.5 85 2 1 1B NE 0 0 1018 3142 Partly cloudy 36% cloud 09:00 17.7 60 3 2 1B SW 0 0 1018 3142 Clear 6% cloud 12:00 20.4 54 9 5 2B SW 0 0 1016 3130 Clear 13% cloud 15:00 19.1 61 9 5 2B SW 0 0 1015 3119 Clear 16% cloud 18:00 13.4 86 4 2 1B S 0 0 1016 3117 Partly cloudy 21% cloud 21:00 12.5 83 4 2 1B SE 0 0 1016 3115 Cloudy 51% cloud Wednesday, 14/10 00:00 13.6 86 3 1 1B SE 0.02 0 1014 3103 Overcast 94% cloud 03:00 13.6 88 3 2 1B SE 0.03 0 1011 3084 Overcast 83% cloud 06:00 12.9 83 2 1 1B S 0.01 0 1010 3078 Partly cloudy 37% cloud 09:00 18.4 69 5 3 1B W 0.04 0 1010 3078 Overcast 81% cloud 12:00 19.1 70 7 4 2B W 1.1 0 1009 3069 Partly cloudy 50% cloud 15:00 15.8 77 15 8 3B NW 2.6 0 1011 3061 Cloudy 79% cloud 18:00 12.1 80 15 8 3B N 1.2 0 1014 3064 Overcast 82% cloud 21:00 10 81 12 6 2B N 0.64 0 1016 3070 Overcast 82% cloud Thursday, 15/10 00:00 8.9 80 10 5 2B N 0.36 0 1018 3078 Cloudy 68% cloud 03:00 8 83 9 5 2B N 0.18 0 1019 3085 Cloudy 57% cloud 06:00 7.3 84 7 4 2B N 0.12 0 1021 3097 Cloudy 58% cloud 09:00 12 60 3 2 1B W 0.02 0 1022 3114 Clear 18% cloud 12:00 15.1 50 6 3 2B SW 0 0 1021 3118 Clear 10% cloud 15:00 15.2 53 6 3 2B SW 0 0 1020 3122 Clear 9% cloud 18:00 9.8 85 2 1 1B S 0 0 1023 3130 Clear 13% cloud 21:00 10.8 84 6 3 1B S 0 0 1024 3139 Overcast 100% cloud Friday, 16/10 00:00 10.7 88 5 3 1B S 0.00 0 1024 3145 Overcast 96% cloud 03:00 10.5 89 2 1 1B SE 0.01 0 1024 3146 Overcast 99% cloud 06:00 8.7 88 3 2 1B E 0 0 1024 3154 Overcast 90% cloud 09:00 16.2 44 3 2 1B SW 0 0 1024 3166 Cloudy 76% cloud 12:00 18.5 39 5 3 1B W 0 0 1023 3163 Overcast 100% cloud 15:00 17.7 46 6 3 2B W 0 0 1023 3164 Overcast 92% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Katashina Kogen Ski Resort is a downhill ski area in Gunma Prefecture, Japan. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 950 to 1263 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF IFS · Run 2026-10-10 06:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.8120978°N, 139.2233151°E · Requested elevation: 991 m. Model terrain: 1297 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
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 15:00 20.1 60 5 3 1B W — — 1020 3171 Partly cloudy 21% cloud 18:00 13.9 88 1 1 1B N 0.00 0 1022 3174 Partly cloudy 32% cloud 21:00 11.3 89 2 1 1B E 0.02 0 1023 3177 Partly cloudy 36% cloud Sunday, 11/10 00:00 9.3 84 3 2 1B NE 0 0 1021 3170 Partly cloudy 36% cloud 03:00 9.5 71 4 2 1B NE 0 0 1021 3164 Clear 8% cloud 06:00 9.2 71 6 3 1B NE 0 0 1021 3165 Clear 1% cloud 09:00 18 50 4 2 1B NW 0 0 1022 3175 Clear 0% cloud 12:00 21.2 43 6 3 2B NW 0 0 1020 3170 Clear 0% cloud 15:00 19.7 53 6 3 2B NW 0 0 1019 3160 Clear 4% cloud 18:00 13 82 3 2 1B N 0 0 1021 3168 Clear 15% cloud 21:00 11.2 85 2 1 1B E 0.00 0 1021 3168 Partly cloudy 29% cloud Monday, 12/10 00:00 10.5 81 4 2 1B NE 0 0 1021 3163 Cloudy 72% cloud 03:00 8.5 74 2 1 1B NE 0 0 1020 3159 Partly cloudy 23% cloud 06:00 9.2 63 2 1 1B NE 0 0 1020 3161 Partly cloudy 30% cloud 09:00 17.1 52 3 2 1B SW 0 0 1021 3169 Partly cloudy 45% cloud 12:00 19.5 59 5 3 1B W 0 0 1019 3161 Overcast 93% cloud 15:00 17.6 72 4 2 1B W 0 0 1019 3154 Overcast 94% cloud 18:00 13.6 90 2 1 1B SE 0 0 1020 3160 Cloudy 70% cloud 21:00 13.3 92 3 2 1B SW 0.03 0 1021 3160 Overcast 95% cloud Tuesday, 13/10 00:00 12.9 91 2 1 1B SW 0.13 0 1020 3152 Overcast 99% cloud 03:00 11.3 90 2 1 1B NE 0.01 0 1019 3142 Cloudy 78% cloud 06:00 9.3 86 2 1 1B NE 0 0 1018 3142 Partly cloudy 37% cloud 09:00 17.4 61 3 2 1B SW 0 0 1018 3142 Clear 6% cloud 12:00 20.2 55 9 5 2B SW 0 0 1016 3130 Clear 13% cloud 15:00 18.9 61 8 5 2B SW 0 0 1015 3119 Clear 15% cloud 18:00 13.2 87 4 2 1B S 0 0 1016 3117 Partly cloudy 21% cloud 21:00 12.3 84 3 2 1B SE 0 0 1015 3115 Cloudy 52% cloud Wednesday, 14/10 00:00 13.3 87 3 1 1B SE 0.03 0 1014 3103 Overcast 94% cloud 03:00 13.4 89 3 2 1B SE 0.03 0 1011 3084 Overcast 83% cloud 06:00 12.6 84 2 1 1B S 0.01 0 1010 3078 Partly cloudy 38% cloud 09:00 18.1 70 5 3 1B W 0.04 0 1010 3078 Overcast 81% cloud 12:00 18.8 71 6 4 2B W 1.1 0 1009 3069 Cloudy 50% cloud 15:00 15.5 78 15 8 3B NW 2.6 0 1011 3061 Cloudy 80% cloud 18:00 11.8 81 15 8 3B N 1.3 0 1014 3064 Overcast 82% cloud 21:00 9.8 82 12 7 2B N 0.69 0 1016 3070 Overcast 82% cloud Thursday, 15/10 00:00 8.7 81 10 5 2B N 0.37 0 1018 3078 Cloudy 69% cloud 03:00 7.8 84 9 5 2B N 0.19 0 1019 3085 Cloudy 58% cloud 06:00 7.1 85 7 4 2B N 0.12 0 1021 3097 Cloudy 58% cloud 09:00 11.7 61 3 2 1B W 0.02 0 1022 3114 Clear 18% cloud 12:00 14.9 50 6 3 2B SW 0 0 1021 3118 Clear 11% cloud 15:00 15 54 6 3 2B SW 0 0 1020 3122 Clear 10% cloud 18:00 9.6 86 2 1 1B S 0 0 1023 3130 Clear 13% cloud 21:00 10.6 85 6 3 1B S 0 0 1024 3139 Overcast 100% cloud Friday, 16/10 00:00 10.5 89 5 3 1B S 0.00 0 1024 3145 Overcast 96% cloud 03:00 10.3 90 2 1 1B SE 0.01 0 1024 3146 Overcast 99% cloud 06:00 8.5 90 3 2 1B E 0 0 1024 3154 Overcast 90% cloud 09:00 15.9 45 3 2 1B SW 0 0 1024 3166 Cloudy 76% cloud 12:00 18.2 40 5 3 1B W 0 0 1023 3163 Overcast 100% cloud 15:00 17.5 46 6 3 2B W 0 0 1023 3164 Overcast 92% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF IFS · Run 2026-10-10 06:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.8113249°N, 139.2122161°E · Requested elevation: 1263 m. Model terrain: 1275 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
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 15:00 18.6 63 5 3 1B W — — 1020 3172 Clear 20% cloud 18:00 12.4 94 1 1 1B N 0.00 0 1022 3174 Partly cloudy 31% cloud 21:00 9.8 96 2 1 1B NE 0.01 0 1023 3177 Partly cloudy 34% cloud Sunday, 11/10 00:00 7.7 91 3 2 1B NE 0 0 1021 3170 Partly cloudy 38% cloud 03:00 7.9 78 5 2 1B NE 0 0 1021 3164 Clear 12% cloud 06:00 7.7 77 6 3 1B NE 0 0 1021 3165 Clear 1% cloud 09:00 16.5 54 4 2 1B NW 0 0 1022 3175 Clear 0% cloud 12:00 19.6 46 6 3 2B NW 0 0 1020 3171 Clear 0% cloud 15:00 18.2 57 7 4 2B NW 0 0 1019 3160 Clear 4% cloud 18:00 11.5 89 3 2 1B N 0 0 1021 3168 Clear 15% cloud 21:00 9.8 92 2 1 1B E 0.00 0 1021 3168 Partly cloudy 31% cloud Monday, 12/10 00:00 8.9 87 4 2 1B NE 0 0 1021 3163 Cloudy 72% cloud 03:00 7 81 2 1 1B NE 0 0 1020 3159 Partly cloudy 23% cloud 06:00 7.5 68 2 1 1B NE 0 0 1020 3161 Partly cloudy 30% cloud 09:00 15.6 56 3 1 1B SW 0 0 1021 3169 Partly cloudy 44% cloud 12:00 17.9 63 5 3 1B W 0 0 1019 3161 Overcast 93% cloud 15:00 16.1 77 4 2 1B W 0 0 1019 3154 Overcast 94% cloud 18:00 12.1 97 2 1 1B SE 0 0 1020 3160 Cloudy 69% cloud 21:00 11.8 99 3 2 1B SW 0.03 0 1021 3160 Overcast 94% cloud Tuesday, 13/10 00:00 11.4 98 2 1 1B SW 0.13 0 1020 3152 Overcast 99% cloud 03:00 9.8 97 2 1 1B NE 0.01 0 1019 3142 Cloudy 79% cloud 06:00 7.7 93 2 1 1B NE 0 0 1018 3142 Partly cloudy 40% cloud 09:00 15.8 65 3 2 1B SW 0 0 1018 3142 Clear 6% cloud 12:00 18.6 59 8 5 2B SW 0 0 1016 3130 Clear 13% cloud 15:00 17.4 66 8 5 2B SW 0 0 1015 3119 Clear 15% cloud 18:00 11.7 93 4 2 1B S 0 0 1016 3117 Partly cloudy 21% cloud 21:00 10.8 90 3 2 1B SE 0 0 1015 3115 Cloudy 54% cloud Wednesday, 14/10 00:00 11.8 94 2 1 1B SE 0.03 0 1014 3103 Overcast 94% cloud 03:00 11.8 95 3 2 1B SE 0.03 0 1011 3084 Overcast 84% cloud 06:00 11.1 90 2 1 1B S 0.02 0 1010 3078 Partly cloudy 40% cloud 09:00 16.6 76 5 2 1B W 0.04 0 1010 3078 Overcast 81% cloud 12:00 17.3 76 6 3 2B NW 1.1 0 1009 3069 Cloudy 50% cloud 15:00 14 84 15 8 3B NW 2.7 0 1011 3061 Overcast 80% cloud 18:00 10.3 87 16 8 3B N 1.4 0 1014 3064 Overcast 83% cloud 21:00 8.3 88 12 7 3B N 0.75 0 1016 3070 Overcast 83% cloud Thursday, 15/10 00:00 7.2 88 10 5 2B N 0.39 0 1018 3078 Cloudy 70% cloud 03:00 6.3 91 9 5 2B N 0.21 0 1019 3085 Cloudy 60% cloud 06:00 5.7 92 7 4 2B N 0.12 0 1021 3098 Cloudy 59% cloud 09:00 10.2 66 3 2 1B W 0.02 0 1022 3114 Clear 19% cloud 12:00 13.4 54 6 3 2B SW 0 0 1021 3118 Clear 12% cloud 15:00 13.5 58 6 3 1B SW 0 0 1020 3122 Clear 11% cloud 18:00 8.1 92 2 1 1B S 0 0 1023 3130 Clear 13% cloud 21:00 9.1 91 6 3 1B S 0 0 1024 3139 Overcast 100% cloud Friday, 16/10 00:00 9 95 5 3 1B S 0.00 0 1024 3145 Overcast 96% cloud 03:00 8.8 96 2 1 1B SE 0.01 0 1024 3146 Overcast 99% cloud 06:00 7 97 3 2 1B E 0 0 1024 3154 Overcast 90% cloud 09:00 14.4 49 3 1 1B SW 0 0 1024 3166 Cloudy 76% cloud 12:00 16.7 43 5 3 1B W 0 0 1023 3164 Overcast 99% cloud 15:00 15.9 50 6 3 2B NW 0 0 1023 3164 Overcast 93% cloud |
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