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.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 9.8 69 11 6 2B SE — — 1028 3148 Overcast 99% cloud 09:00 7.8 82 11 6 2B S 0.13 0 1029 3153 Overcast 100% cloud 12:00 7.2 90 12 6 2B S 1.4 0 1028 3148 Overcast 100% cloud 15:00 7.5 92 8 5 2B S 5.7 0 1026 3132 Overcast 100% cloud 18:00 8 92 8 4 2B S 6.5 0 1023 3121 Overcast 100% cloud 21:00 8.8 92 8 4 2B S 5.3 0 1021 3115 Overcast 100% cloud Thursday, 05/11 00:00 11.1 88 8 5 2B S 0.26 0 1018 3104 Overcast 99% cloud 03:00 13.7 78 8 4 2B S 0.10 0 1014 3076 Overcast 96% cloud 06:00 14.8 76 4 2 1B S 0 0 1011 3052 Cloudy 77% cloud 09:00 10.9 90 3 2 1B SW 0 0 1010 3043 Overcast 85% cloud 12:00 10.4 91 3 1 1B SW 0.12 0 1008 3031 Cloudy 69% cloud 15:00 9.2 87 1 1 1B W 0.10 0 1006 3015 Partly cloudy 32% cloud 18:00 9.3 83 3 1 1B NW 0.09 0 1004 2998 Cloudy 52% cloud 21:00 9.6 91 8 4 2B NW 1.6 0 1006 2999 Overcast 99% cloud Friday, 06/11 00:00 11.4 87 12 7 3B NW 1.3 0 1008 2956 Overcast 94% cloud 03:00 13.3 69 10 5 2B N 0.66 0 1008 2873 Cloudy 64% cloud 06:00 12.9 68 6 3 2B N 0.70 0 1009 2751 Cloudy 58% cloud 09:00 9.1 87 7 4 2B N 0.35 0 1012 2677 Cloudy 78% cloud 12:00 7.5 88 9 5 2B N 0.43 0 1014 2305 Overcast 84% cloud 15:00 5.6 90 13 7 3B NW 1.2 0 1016 1916 Overcast 98% cloud 18:00 3.5 89 14 8 3B NW 2.1 0 1017 1512 Overcast 100% cloud 21:00 3 87 10 6 2B NW 1.1 0 1019 1421 Overcast 99% cloud Saturday, 07/11 00:00 3.6 81 11 6 2B NW 1.1 0 1021 1405 Overcast 99% cloud 03:00 4 74 17 9 3B NW 1.3 0 1021 1407 Cloudy 75% cloud 06:00 2.8 77 16 9 3B NW 1.6 0 1024 1310 Overcast 87% cloud 09:00 1.3 83 16 8 3B NW 1.6 0 1026 1121 Overcast 87% cloud 12:00 0.8 76 14 8 3B NW 0.31 0.1 1029 < 1112 Overcast 85% cloud 15:00 0.2 78 12 7 3B NW 0.09 0 1030 < 1112 Overcast 90% cloud 18:00 1 81 13 7 3B NW 0.24 0 1031 < 1112 Overcast 99% cloud 21:00 1.6 78 11 6 2B NW 0.40 0 1032 1153 Overcast 98% cloud Sunday, 08/11 00:00 3.6 69 11 6 2B NW 0.24 0 1033 1324 Overcast 95% cloud 03:00 4.8 66 13 7 3B NW 0.24 0 1032 1417 Overcast 98% cloud 06:00 3.8 71 12 6 2B NW 0.26 0 1032 1394 Overcast 90% cloud 09:00 2.4 77 7 4 2B NW 0.00 0 1033 1330 Overcast 99% cloud 12:00 1.9 77 3 2 1B NW 0.00 0 1032 1422 Overcast 83% cloud 15:00 1.2 78 3 1 1B NW 0 0 1030 < 1112 Overcast 97% cloud 18:00 2.4 76 5 3 1B NW 0.02 0 1030 1453 Overcast 99% cloud 21:00 2.6 80 3 1 1B NW 0.18 0 1028 1731 Overcast 94% cloud Monday, 09/11 00:00 6.5 66 3 1 1B S 0.11 0 1027 2022 Partly cloudy 44% cloud 03:00 9.3 58 2 1 1B SE 0 0 1023 2176 Cloudy 62% cloud 06:00 7.4 71 7 4 2B N 0.09 0 1023 1863 Overcast 97% cloud 09:00 4.5 80 5 3 1B NW 0 0 1024 1863 Cloudy 79% cloud 12:00 4.2 85 9 5 2B NW 1.1 0 1024 1654 Overcast 96% cloud 15:00 2.4 86 12 6 2B NW 1.9 0 1025 1286 Overcast 95% cloud 18:00 1.3 85 14 8 3B NW 1.4 0 1025 1119 Overcast 100% cloud 21:00 0.9 84 13 7 3B NW 0.61 0.2 1025 < 1112 Overcast 94% cloud Tuesday, 10/11 00:00 1.7 82 11 6 2B NW 0.89 0 1027 1159 Overcast 98% cloud 03:00 2.4 77 11 6 2B NW 1.2 0 1026 1229 Overcast 98% cloud 06:00 2.1 75 9 5 2B NW 0.45 0 1027 1197 Cloudy 80% cloud |
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Forecast table times: UTC.
Coordinates: 36.8021143°N, 138.783589°E · Requested elevation: 882 m. Model terrain: 1109 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) uses additional 600/500 hPa temperatures when available and 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.

Naeba Ski Resort is a downhill ski area in Niigata Prefecture, Japan. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 882 to 1785 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 9.5 70 12 6 2B SE — — 1028 3148 Overcast 99% cloud 09:00 7.6 83 11 6 2B S 0.14 0 1029 3153 Overcast 100% cloud 12:00 7 91 12 7 2B S 1.4 0 1028 3148 Overcast 100% cloud 15:00 7.4 92 9 5 2B S 5.8 0 1026 3132 Overcast 100% cloud 18:00 7.8 92 9 5 2B S 6.5 0 1023 3121 Overcast 100% cloud 21:00 8.8 92 8 4 2B S 5.3 0 1021 3115 Overcast 100% cloud Thursday, 05/11 00:00 11 88 8 4 2B S 0.26 0 1018 3104 Overcast 99% cloud 03:00 13.5 79 8 4 2B S 0.10 0 1014 3076 Overcast 96% cloud 06:00 14.6 76 4 2 1B S 0 0 1011 3052 Cloudy 77% cloud 09:00 10.7 90 3 2 1B SW 0 0 1010 3043 Overcast 87% cloud 12:00 10.3 91 3 1 1B SW 0.10 0 1008 3031 Cloudy 70% cloud 15:00 9.1 87 1 1 1B W 0.10 0 1006 3015 Partly cloudy 31% cloud 18:00 9.3 82 3 2 1B NW 0.08 0 1004 2998 Cloudy 52% cloud 21:00 9.5 91 8 4 2B NW 1.4 0 1006 2999 Overcast 99% cloud Friday, 06/11 00:00 11.4 86 13 7 3B NW 1.2 0 1008 2966 Overcast 95% cloud 03:00 13.2 70 10 5 2B N 0.63 0 1008 2883 Cloudy 67% cloud 06:00 12.8 68 6 3 2B N 0.73 0 1009 2756 Cloudy 57% cloud 09:00 9 87 8 4 2B N 0.35 0 1012 2686 Cloudy 79% cloud 12:00 7.4 88 9 5 2B N 0.43 0 1014 2316 Overcast 84% cloud 15:00 5.5 89 14 7 3B NW 1.2 0 1016 1928 Overcast 98% cloud 18:00 3.4 89 14 8 3B NW 2.0 0 1017 1523 Overcast 100% cloud 21:00 2.9 87 10 5 2B NW 0.98 0 1019 1428 Overcast 99% cloud Saturday, 07/11 00:00 3.6 80 11 6 2B NW 0.96 0 1021 1413 Overcast 99% cloud 03:00 3.9 73 17 9 3B NW 1.2 0 1021 1416 Cloudy 75% cloud 06:00 2.7 76 16 9 3B NW 1.4 0 1023 1318 Overcast 87% cloud 09:00 1.2 82 16 9 3B NW 1.5 0 1026 < 1138 Overcast 88% cloud 12:00 0.6 76 15 8 3B NW 0.30 0.1 1029 < 1138 Overcast 87% cloud 15:00 0.1 78 13 7 3B NW 0.07 0 1030 < 1138 Overcast 91% cloud 18:00 0.8 80 13 7 3B NW 0.22 0 1030 < 1138 Overcast 99% cloud 21:00 1.5 78 12 6 2B NW 0.37 0 1031 1161 Overcast 98% cloud Sunday, 08/11 00:00 3.5 68 12 6 2B NW 0.22 0 1033 1332 Overcast 96% cloud 03:00 4.7 66 13 7 3B NW 0.20 0 1032 1424 Overcast 98% cloud 06:00 3.7 71 12 6 2B NW 0.23 0 1032 1401 Overcast 90% cloud 09:00 2.2 77 7 4 2B NW 0.00 0 1033 1330 Overcast 99% cloud 12:00 1.7 77 4 2 1B NW 0.00 0 1032 1417 Overcast 83% cloud 15:00 1 78 3 1 1B NW 0 0 1030 < 1138 Overcast 97% cloud 18:00 2.3 75 6 3 1B NW 0.02 0 1030 1464 Overcast 99% cloud 21:00 2.5 80 3 1 1B NW 0.17 0 1028 1740 Overcast 94% cloud Monday, 09/11 00:00 6.5 65 3 2 1B S 0.11 0 1027 2024 Partly cloudy 43% cloud 03:00 9.2 58 2 1 1B SE 0 0 1023 2182 Cloudy 62% cloud 06:00 7.2 72 7 4 2B N 0.09 0 1023 1872 Overcast 97% cloud 09:00 4.4 80 5 3 1B NW 0 0 1024 1870 Cloudy 78% cloud 12:00 4.1 85 9 5 2B NW 0.97 0 1024 1662 Overcast 96% cloud 15:00 2.3 86 12 6 2B NW 1.8 0 1025 1291 Overcast 95% cloud 18:00 1.2 85 15 8 3B NW 1.4 0 1025 < 1138 Overcast 100% cloud 21:00 0.8 84 13 7 3B NW 0.60 0.2 1025 < 1138 Overcast 95% cloud Tuesday, 10/11 00:00 1.6 82 11 6 2B NW 0.82 0 1027 1172 Overcast 98% cloud 03:00 2.3 76 11 6 2B NW 1.1 0 1026 1242 Overcast 98% cloud 06:00 2 74 9 5 2B NW 0.40 0 1027 1209 Cloudy 79% cloud |
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Forecast table times: UTC.
Coordinates: 36.7931926°N, 138.7840677°E · Requested elevation: 904 m. Model terrain: 1135 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) uses additional 600/500 hPa temperatures when available and 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.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 3.9 87 28 15 4B S — — 1028 3148 Overcast 99% cloud 09:00 4.5 88 35 19 5B S 0.12 0 1029 3153 Overcast 100% cloud 12:00 4.4 89 45 24 6B S 1.4 0 1028 3147 Overcast 100% cloud 15:00 4.6 92 40 21 6B S 6.0 0 1026 3132 Overcast 100% cloud 18:00 5.4 92 40 21 6B S 6.6 0 1023 3121 Overcast 100% cloud 21:00 6.7 90 35 19 5B S 5.4 0 1021 3115 Overcast 100% cloud Thursday, 05/11 00:00 7.8 82 26 14 4B S 0.25 0 1018 3103 Overcast 99% cloud 03:00 8.3 85 21 11 4B S 0.10 0 1014 3076 Overcast 98% cloud 06:00 8.5 90 14 8 3B SW 0 0 1011 3052 Cloudy 78% cloud 09:00 8.1 92 15 8 3B SW 0 0 1010 3043 Overcast 91% cloud 12:00 8.6 87 19 10 3B SW 0.10 0 1008 3031 Cloudy 71% cloud 15:00 9.4 72 22 12 4B W 0.10 0 1006 3015 Partly cloudy 27% cloud 18:00 8.6 74 24 13 4B W 0.08 0 1004 2998 Cloudy 52% cloud 21:00 6.8 88 32 17 5B NW 1.5 0 1006 2999 Overcast 100% cloud Friday, 06/11 00:00 6 84 42 23 6B NW 1.2 0 1008 2969 Overcast 97% cloud 03:00 6.5 77 38 20 5B W 0.61 0 1008 2882 Cloudy 70% cloud 06:00 6.5 78 27 15 4B W 0.80 0 1009 2759 Cloudy 59% cloud 09:00 5.1 81 30 16 5B W 0.36 0 1012 2692 Cloudy 79% cloud 12:00 3.1 86 34 18 5B W 0.44 0 1014 2319 Overcast 88% cloud 15:00 0.8 86 37 20 5B NW 1.1 0.3 1016 1927 Overcast 99% cloud 18:00 -1.4 83 41 22 6B NW 1.9 0.6 1017 1522 Overcast 100% cloud 21:00 -2.1 84 46 25 6B W 0.92 0.3 1019 1423 Overcast 99% cloud Saturday, 07/11 00:00 -2.4 85 48 26 6B W 0.88 0.3 1021 1420 Overcast 100% cloud 03:00 -2.5 79 55 30 7B W 1.1 0.3 1021 1423 Cloudy 75% cloud 06:00 -3 79 58 31 7B NW 1.4 1.4 1024 1319 Overcast 87% cloud 09:00 -3.4 76 63 34 8B NW 1.5 1.5 1026 < 1185 Overcast 90% cloud 12:00 -3.8 71 54 29 7B NW 0.29 0.3 1029 < 1185 Overcast 89% cloud 15:00 -3.5 71 52 28 7B NW 0.06 0.1 1030 < 1185 Overcast 94% cloud 18:00 -3.4 73 53 28 7B NW 0.20 0.2 1031 < 1185 Overcast 99% cloud 21:00 -3.1 76 46 25 6B NW 0.36 0.4 1032 < 1185 Overcast 99% cloud Sunday, 08/11 00:00 -2.6 76 35 19 5B NW 0.19 0 1033 1343 Overcast 96% cloud 03:00 -1.8 77 31 17 5B NW 0.15 0 1032 1433 Overcast 98% cloud 06:00 -1.6 76 25 14 4B NW 0.22 0 1032 1404 Overcast 90% cloud 09:00 -1.4 72 16 9 3B W 0.00 0 1033 1317 Overcast 100% cloud 12:00 -0.8 69 14 7 3B W 0.00 0 1032 1373 Overcast 84% cloud 15:00 -0.7 73 16 9 3B W 0 0 1030 < 1185 Overcast 98% cloud 18:00 -1 76 17 9 3B W 0.02 0 1030 1468 Overcast 100% cloud 21:00 -0.2 75 20 11 3B W 0.18 0 1028 1731 Overcast 95% cloud Monday, 09/11 00:00 1.1 75 20 11 4B SW 0.12 0 1027 2025 Partly cloudy 40% cloud 03:00 2.1 76 16 9 3B W 0 0 1023 2189 Cloudy 62% cloud 06:00 0.4 92 15 8 3B NW 0.10 0 1023 1876 Overcast 97% cloud 09:00 0.4 85 22 12 4B W 0 0 1024 1867 Overcast 82% cloud 12:00 -0.7 88 22 12 4B NW 0.95 0.3 1025 1658 Overcast 99% cloud 15:00 -2.6 81 34 18 5B NW 1.8 0.5 1025 1289 Overcast 96% cloud 18:00 -3.7 80 45 24 6B NW 1.4 1.4 1025 < 1185 Overcast 100% cloud 21:00 -3.8 76 46 25 6B NW 0.56 0.6 1025 < 1185 Overcast 95% cloud Tuesday, 10/11 00:00 -3.7 81 38 20 5B NW 0.73 0.7 1027 < 1185 Overcast 98% cloud 03:00 -3.4 79 28 15 4B NW 1.1 1.1 1026 1258 Overcast 99% cloud 06:00 -3.7 78 24 13 4B NW 0.36 0.4 1027 1225 Cloudy 79% cloud |
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Forecast table times: UTC.
Coordinates: 36.7895252°N, 138.7582723°E · Requested elevation: 1785 m. Model terrain: 1183 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) uses additional 600/500 hPa temperatures when available and 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.