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 | Thursday, 05/11 06:00 14.2 74 6 3 2B S — — 1011 3055 Cloudy 52% cloud 09:00 10.5 85 1 1 1B W 0.01 0 1010 3046 Cloudy 64% cloud 12:00 11.1 84 3 2 1B S 0.26 0 1008 3032 Overcast 98% cloud 15:00 10.1 82 2 1 1B SW 0.10 0 1006 3017 Partly cloudy 29% cloud 18:00 9.8 80 2 1 1B NW 0.09 0 1005 2998 Cloudy 76% cloud 21:00 9.6 91 7 4 2B NW 1.2 0 1006 2999 Overcast 98% cloud Friday, 06/11 00:00 11.4 88 11 6 2B NW 2.2 0 1009 2979 Overcast 87% cloud 03:00 14.6 62 9 5 2B N 0.35 0 1008 2921 Cloudy 55% cloud 06:00 12.9 71 7 4 2B N 0.50 0 1009 2765 Cloudy 50% cloud 09:00 8.6 86 10 5 2B N 0.41 0 1013 2641 Cloudy 77% cloud 12:00 6.3 86 12 6 2B N 0.43 0 1016 2237 Overcast 91% cloud 15:00 4.7 88 14 8 3B NW 1.2 0 1018 1769 Overcast 98% cloud 18:00 3.4 87 13 7 3B NW 1.6 0 1018 1493 Overcast 99% cloud 21:00 3.1 84 7 4 2B NW 0.68 0 1020 1443 Overcast 90% cloud Saturday, 07/11 00:00 4.1 81 10 6 2B NW 0.83 0 1022 1469 Overcast 98% cloud 03:00 4.2 75 16 9 3B NW 1.5 0 1022 1428 Overcast 89% cloud 06:00 3.3 76 17 9 3B NW 1.2 0 1024 1360 Overcast 90% cloud 09:00 1.4 82 14 8 3B NW 1.1 0 1027 1143 Overcast 95% cloud 12:00 1.5 76 13 7 3B NW 0.56 0 1029 1141 Overcast 96% cloud 15:00 0.9 72 12 7 3B NW 0.15 0 1031 < 1112 Overcast 91% cloud 18:00 1.3 75 13 7 3B NW 0.15 0 1031 1116 Overcast 97% cloud 21:00 1.6 76 11 6 2B NW 0.48 0 1032 1153 Overcast 96% cloud Sunday, 08/11 00:00 3.5 69 11 6 2B NW 0.26 0 1034 1318 Overcast 95% cloud 03:00 4.7 66 14 7 3B NW 0.14 0 1032 1417 Overcast 96% cloud 06:00 4.4 66 11 6 2B N 0.03 0 1032 1445 Overcast 90% cloud 09:00 1.7 77 6 3 2B NW 0 0 1032 1425 Overcast 81% cloud 12:00 2 76 3 1 1B NW 0 0 1032 1716 Overcast 87% cloud 15:00 3.1 70 2 1 1B S 0.00 0 1030 1928 Overcast 83% cloud 18:00 3.3 69 1 0 0B SW 0 0 1028 2055 Overcast 96% cloud 21:00 3.4 71 1 1 1B SW 0 0 1026 2240 Overcast 95% cloud Monday, 09/11 00:00 6.7 63 3 1 1B S 0 0 1025 2350 Overcast 88% cloud 03:00 9.2 59 1 1 1B SE 0.10 0 1022 2390 Partly cloudy 46% cloud 06:00 9.7 60 3 2 1B N 0 0 1020 2250 Cloudy 56% cloud 09:00 4.8 81 3 2 1B NW 0 0 1021 2168 Partly cloudy 48% cloud 12:00 5.1 89 11 6 2B NW 1.4 0 1022 1859 Overcast 99% cloud 15:00 2.8 88 13 7 3B NW 2.7 0 1023 1357 Overcast 100% cloud 18:00 1.7 85 14 8 3B NW 1.1 0 1024 1165 Overcast 98% cloud 21:00 1 82 14 7 3B NW 0.54 0.2 1024 < 1112 Overcast 99% cloud Tuesday, 10/11 00:00 2 78 15 8 3B NW 0.77 0 1025 1189 Overcast 99% cloud 03:00 2.7 78 15 8 3B NW 1.2 0 1025 1261 Overcast 99% cloud 06:00 1.8 79 11 6 2B NW 1.1 0 1025 1171 Overcast 100% cloud 09:00 0.4 82 10 5 2B NW 0.18 0 1027 < 1112 Overcast 92% cloud 12:00 -0.2 83 7 4 2B NW 0.12 0 1028 < 1112 Cloudy 67% cloud 15:00 -1.2 81 5 3 1B NW 0 0 1028 < 1112 Partly cloudy 42% cloud 18:00 -1.7 79 5 3 1B NW 0 0 1028 < 1112 Partly cloudy 34% cloud 21:00 -0.8 80 6 3 1B NW 0 0 1029 < 1112 Cloudy 67% cloud Wednesday, 11/11 00:00 3.6 65 6 3 1B N 0 0 1030 1314 Partly cloudy 48% cloud 03:00 6 54 9 5 2B NW 0.01 0 1028 1466 Partly cloudy 40% cloud 06:00 5.8 49 10 6 2B NW 0 0 1029 1528 Clear 5% 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 | Thursday, 05/11 06:00 13.9 75 7 4 2B S — — 1011 3056 Cloudy 53% cloud 09:00 10.4 85 1 1 1B W 0.01 0 1010 3046 Cloudy 63% cloud 12:00 11 84 3 2 1B S 0.27 0 1008 3032 Overcast 98% cloud 15:00 10 82 2 1 1B SW 0.11 0 1006 3017 Partly cloudy 28% cloud 18:00 9.7 80 3 1 1B NW 0.08 0 1005 2998 Cloudy 75% cloud 21:00 9.5 91 7 4 2B NW 1.1 0 1006 3002 Overcast 98% cloud Friday, 06/11 00:00 11.2 88 12 6 2B NW 2.2 0 1009 2989 Overcast 88% cloud 03:00 14.5 62 9 5 2B N 0.35 0 1008 2932 Cloudy 57% cloud 06:00 12.8 71 7 4 2B N 0.50 0 1009 2770 Partly cloudy 50% cloud 09:00 8.5 86 10 5 2B N 0.40 0 1013 2653 Cloudy 79% cloud 12:00 6.2 85 12 6 2B N 0.43 0 1016 2252 Overcast 91% cloud 15:00 4.6 88 14 8 3B N 1.2 0 1017 1783 Overcast 98% cloud 18:00 3.3 87 13 7 3B NW 1.5 0 1018 1502 Overcast 99% cloud 21:00 3 84 7 4 2B NW 0.64 0 1019 1447 Overcast 92% cloud Saturday, 07/11 00:00 4.1 81 10 6 2B NW 0.77 0 1021 1477 Overcast 98% cloud 03:00 4.1 74 17 9 3B NW 1.3 0 1022 1437 Overcast 89% cloud 06:00 3.2 75 17 9 3B NW 1.0 0 1024 1370 Overcast 89% cloud 09:00 1.3 81 14 8 3B NW 1.0 0 1027 1144 Overcast 96% cloud 12:00 1.3 75 14 7 3B NW 0.52 0 1029 1146 Overcast 96% cloud 15:00 0.8 72 13 7 3B NW 0.15 0 1031 < 1138 Overcast 92% cloud 18:00 1.2 74 14 7 3B NW 0.13 0 1031 < 1138 Overcast 98% cloud 21:00 1.5 75 11 6 2B NW 0.45 0 1032 1162 Overcast 97% cloud Sunday, 08/11 00:00 3.4 68 12 6 2B NW 0.24 0 1033 1327 Overcast 96% cloud 03:00 4.6 66 14 7 3B NW 0.12 0 1032 1424 Overcast 95% cloud 06:00 4.3 66 12 6 2B N 0.02 0 1032 1452 Overcast 90% cloud 09:00 1.4 78 6 3 2B NW 0 0 1032 1389 Overcast 80% cloud 12:00 1.9 76 3 1 1B NW 0 0 1032 1728 Overcast 86% cloud 15:00 3 70 2 1 1B S 0.00 0 1030 1931 Overcast 83% cloud 18:00 3.2 69 1 0 0B SW 0 0 1028 2058 Overcast 96% cloud 21:00 3.3 70 1 1 1B SW 0 0 1026 2244 Overcast 95% cloud Monday, 09/11 00:00 6.6 62 3 1 1B S 0 0 1025 2352 Overcast 88% cloud 03:00 9 60 2 1 1B SE 0.10 0 1022 2393 Partly cloudy 46% cloud 06:00 9.6 61 3 2 1B N 0 0 1020 2257 Cloudy 55% cloud 09:00 4.7 82 4 2 1B NW 0 0 1021 2173 Partly cloudy 46% cloud 12:00 5 89 11 6 2B NW 1.3 0 1022 1868 Overcast 99% cloud 15:00 2.7 88 14 7 3B NW 2.6 0 1023 1360 Overcast 100% cloud 18:00 1.5 85 14 8 3B NW 1.1 0 1023 1171 Overcast 98% cloud 21:00 0.9 81 14 8 3B NW 0.51 0.2 1024 < 1138 Overcast 99% cloud Tuesday, 10/11 00:00 1.8 77 16 8 3B NW 0.69 0 1025 1198 Overcast 99% cloud 03:00 2.6 77 15 8 3B NW 1.1 0 1024 1272 Overcast 99% cloud 06:00 1.7 78 11 6 2B NW 1.0 0 1025 1182 Overcast 100% cloud 09:00 0.3 82 10 6 2B NW 0.15 0 1027 < 1138 Overcast 91% cloud 12:00 -0.4 82 8 4 2B NW 0.11 0 1028 < 1138 Cloudy 66% cloud 15:00 -1.3 80 5 3 1B NW 0 0 1028 < 1138 Partly cloudy 41% cloud 18:00 -1.8 78 6 3 2B NW 0 0 1028 < 1138 Partly cloudy 31% cloud 21:00 -0.9 80 6 3 2B NW 0 0 1029 < 1138 Cloudy 66% cloud Wednesday, 11/11 00:00 3.5 65 6 3 2B N 0 0 1030 1323 Partly cloudy 46% cloud 03:00 5.9 54 9 5 2B NW 0.01 0 1028 1472 Partly cloudy 38% cloud 06:00 5.6 49 10 6 2B NW 0 0 1029 1533 Clear 4% 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 | Thursday, 05/11 06:00 8.7 80 19 10 3B SW — — 1011 3055 Cloudy 55% cloud 09:00 8.9 78 14 7 3B SW 0.00 0 1010 3046 Cloudy 65% cloud 12:00 9.5 77 20 11 4B SW 0.29 0 1008 3032 Overcast 98% cloud 15:00 9 77 21 11 4B SW 0.11 0 1006 3017 Partly cloudy 29% cloud 18:00 8 80 25 13 4B W 0.09 0 1005 2998 Overcast 81% cloud 21:00 6.8 89 33 18 5B NW 1.1 0 1006 3002 Overcast 100% cloud Friday, 06/11 00:00 6.2 82 41 22 6B NW 2.2 0 1009 2996 Overcast 90% cloud 03:00 7.1 72 35 19 5B W 0.33 0 1008 2934 Cloudy 62% cloud 06:00 6.5 77 32 17 5B W 0.54 0 1009 2777 Partly cloudy 49% cloud 09:00 4.1 80 33 18 5B W 0.36 0 1013 2667 Overcast 81% cloud 12:00 2 79 36 19 5B W 0.43 0 1016 2258 Overcast 91% cloud 15:00 -0 83 36 20 5B NW 1.1 0.3 1018 1781 Overcast 99% cloud 18:00 -1.4 82 40 22 6B NW 1.4 0.4 1018 1501 Overcast 99% cloud 21:00 -1.9 84 42 23 6B W 0.62 0.2 1020 1444 Overcast 92% cloud Saturday, 07/11 00:00 -1.9 87 44 24 6B W 0.74 0.2 1021 1486 Overcast 99% cloud 03:00 -2.3 82 53 28 7B NW 1.2 0.4 1022 1446 Overcast 88% cloud 06:00 -2.6 78 57 31 7B NW 0.94 0.3 1024 1376 Overcast 90% cloud 09:00 -3.1 75 58 31 7B NW 0.92 0.9 1027 < 1185 Overcast 96% cloud 12:00 -3.4 73 51 28 7B NW 0.52 0.5 1029 < 1185 Overcast 97% cloud 15:00 -3.4 72 48 26 6B NW 0.14 0.1 1031 < 1185 Overcast 93% cloud 18:00 -3.2 73 53 29 7B NW 0.10 0.1 1031 < 1185 Overcast 98% cloud 21:00 -3.2 77 46 25 6B NW 0.44 0.4 1032 < 1185 Overcast 97% cloud Sunday, 08/11 00:00 -2.6 77 35 19 5B NW 0.21 0 1034 1337 Overcast 96% cloud 03:00 -1.7 79 30 16 5B NW 0.10 0 1032 1432 Overcast 96% cloud 06:00 -1.3 73 21 12 4B NW 0.02 0 1032 1454 Overcast 89% cloud 09:00 -0.5 64 13 7 3B W 0 0 1032 < 1185 Cloudy 80% cloud 12:00 -0.1 67 13 7 3B W 0 0 1031 1734 Overcast 86% cloud 15:00 0.5 67 18 10 3B SW 0.00 0 1029 1939 Overcast 83% cloud 18:00 1.1 65 19 10 3B SW 0 0 1028 2068 Overcast 96% cloud 21:00 2.3 59 23 12 4B SW 0 0 1026 2246 Overcast 96% cloud Monday, 09/11 00:00 3.3 56 21 11 4B SW 0 0 1025 2354 Overcast 88% cloud 03:00 3.7 68 23 12 4B SW 0.10 0 1022 2399 Partly cloudy 41% cloud 06:00 2.9 76 14 8 3B NW 0 0 1020 2257 Cloudy 58% cloud 09:00 2.4 82 18 10 3B W 0 0 1021 2173 Partly cloudy 46% cloud 12:00 0.4 90 28 15 4B NW 1.3 0.4 1022 1864 Overcast 99% cloud 15:00 -2.1 87 36 20 5B NW 2.7 0.8 1023 1355 Overcast 100% cloud 18:00 -3.2 79 44 24 6B NW 1.1 1.1 1023 < 1185 Overcast 99% cloud 21:00 -3.5 75 49 26 6B NW 0.47 0.5 1024 < 1185 Overcast 99% cloud Tuesday, 10/11 00:00 -3.5 76 46 25 6B NW 0.62 0.6 1025 1211 Overcast 99% cloud 03:00 -3 77 42 23 6B NW 1.0 1 1024 1289 Overcast 100% cloud 06:00 -3.4 76 34 18 5B NW 0.97 1 1025 1199 Overcast 100% cloud 09:00 -3.6 72 30 16 5B NW 0.12 0.1 1027 < 1185 Overcast 92% cloud 12:00 -3.4 61 20 11 4B NW 0.08 0.1 1028 < 1185 Cloudy 66% cloud 15:00 -3.5 57 18 10 3B W 0 0 1028 < 1185 Partly cloudy 42% cloud 18:00 -3.7 67 21 11 4B NW 0 0 1028 < 1185 Partly cloudy 30% cloud 21:00 -3.6 75 23 12 4B NW 0 0 1029 < 1185 Cloudy 67% cloud Wednesday, 11/11 00:00 -3.4 80 22 12 4B NW 0 0 1030 1339 Partly cloudy 45% cloud 03:00 -1.8 68 23 13 4B NW 0.00 0 1028 1487 Partly cloudy 34% cloud 06:00 -0.9 55 25 13 4B NW 0 0 1029 1546 Clear 4% 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.