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 16.5 67 2 1 1B W — — 1010 3050 Partly cloudy 25% cloud 09:00 12.7 83 2 1 1B S 0.02 0 1009 3042 Overcast 94% cloud 12:00 12.2 87 5 2 1B SW 0.69 0 1007 3026 Overcast 92% cloud 15:00 12 84 5 2 1B SW 0.10 0 1006 3013 Overcast 84% cloud 18:00 11.4 89 4 2 1B W 1.8 0 1005 2998 Overcast 86% cloud 21:00 10.8 96 7 4 2B NW 4.9 0 1008 2865 Overcast 99% cloud Friday, 06/11 00:00 12.7 91 7 4 2B NW 2.1 0 1009 2791 Cloudy 51% cloud 03:00 15.5 58 10 5 2B W 1.3 0 1008 2778 Cloudy 52% cloud 06:00 13.7 66 13 7 3B W 0.61 0 1010 2708 Partly cloudy 47% cloud 09:00 9.3 82 11 6 2B W 0.22 0 1014 2463 Partly cloudy 38% cloud 12:00 7.2 93 8 4 2B NW 0.60 0 1017 1993 Overcast 84% cloud 15:00 5.8 95 10 5 2B NW 4.1 0 1018 1622 Overcast 99% cloud 18:00 4.7 95 8 4 2B NW 4.0 0 1019 1463 Overcast 96% cloud 21:00 4.5 90 8 5 2B W 1.3 0 1019 1533 Cloudy 75% cloud Saturday, 07/11 00:00 4.9 92 11 6 2B NW 2.6 0 1023 1393 Overcast 99% cloud 03:00 5.1 85 10 5 2B NW 4.2 0 1024 1343 Overcast 86% cloud 06:00 4.6 82 11 6 2B NW 3.1 0 1025 1299 Cloudy 74% cloud 09:00 3.1 89 8 5 2B NW 2.0 0 1028 1181 Cloudy 75% cloud 12:00 2.5 88 8 4 2B W 0.84 0 1030 1117 Cloudy 69% cloud 15:00 2.3 83 8 4 2B W 0.15 0 1031 1113 Cloudy 75% cloud 18:00 2.8 87 8 5 2B NW 0.35 0 1032 1116 Overcast 81% cloud 21:00 2.9 88 6 3 2B NW 0.36 0 1033 1112 Overcast 84% cloud Sunday, 08/11 00:00 5 76 7 4 2B NW 0.14 0 1034 1282 Overcast 80% cloud 03:00 7 60 11 6 2B N 0.05 0 1032 1387 Overcast 82% cloud 06:00 6.2 62 9 5 2B N 0.02 0 1031 1399 Cloudy 75% cloud 09:00 4.1 75 4 2 1B N 0 0 1032 1443 Overcast 83% cloud 12:00 4 75 2 1 1B W 0 0 1032 1568 Overcast 86% cloud 15:00 3.8 75 4 2 1B SW 0.05 0 1030 2065 Overcast 89% cloud 18:00 4 77 4 2 1B SW 0.02 0 1028 2111 Overcast 99% cloud 21:00 4.4 79 4 2 1B SW 0.17 0 1026 2219 Overcast 96% cloud Monday, 09/11 00:00 8.4 70 6 3 1B SW 0.07 0 1025 2316 Overcast 85% cloud 03:00 11.4 57 3 2 1B W 0 0 1021 2311 Partly cloudy 39% cloud 06:00 10.8 65 5 3 1B NW 0.05 0 1020 2254 Cloudy 60% cloud 09:00 7.3 90 8 5 2B NW 0.57 0 1021 2166 Overcast 83% cloud 12:00 5.5 98 13 7 3B N 6.3 0 1024 1577 Overcast 99% cloud 15:00 4.1 96 9 5 2B NW 2.6 0 1024 1295 Overcast 97% cloud 18:00 3.1 94 9 5 2B NW 1.4 0 1025 1140 Overcast 89% cloud 21:00 2.6 93 8 4 2B NW 0.44 0 1026 1087 Overcast 89% cloud Tuesday, 10/11 00:00 3.8 84 9 5 2B NW 0.73 0 1027 1173 Cloudy 71% cloud 03:00 4.2 82 12 6 2B N 2.0 0 1026 1216 Overcast 88% cloud 06:00 3 86 10 5 2B N 2.1 0 1026 1091 Overcast 90% cloud 09:00 2.1 92 6 3 2B N 0.31 0 1028 1017 Overcast 90% cloud 12:00 1.6 90 3 2 1B N 0.03 0 1028 1006 Cloudy 77% cloud 15:00 1.1 89 2 1 1B W 0.04 0 1028 931 Cloudy 73% cloud 18:00 0.5 86 2 1 1B W 0 0 1028 830 Cloudy 74% cloud 21:00 0.3 86 2 1 1B W 0 0 1029 804 Cloudy 61% cloud Wednesday, 11/11 00:00 4.8 68 4 2 1B NW 0.08 0 1030 1242 Cloudy 57% cloud 03:00 7.3 55 8 4 2B N 0 0 1029 1407 Partly cloudy 28% cloud 06:00 7.2 55 9 5 2B N 0 0 1029 1503 Clear 11% cloud |
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Forecast table times: UTC.
Coordinates: 36.8870175°N, 138.1772355°E · Requested elevation: 728 m. Model terrain: 602 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.

Akakura Kanko 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 728 to 1490 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 16.5 67 2 1 1B W — — 1010 3050 Partly cloudy 25% cloud 09:00 12.7 83 2 1 1B S 0.02 0 1009 3042 Overcast 94% cloud 12:00 12.2 87 5 2 1B SW 0.69 0 1007 3026 Overcast 92% cloud 15:00 12 84 5 2 1B SW 0.10 0 1006 3013 Overcast 84% cloud 18:00 11.4 89 4 2 1B W 1.8 0 1005 2998 Overcast 86% cloud 21:00 10.8 96 7 4 2B NW 4.9 0 1008 2865 Overcast 99% cloud Friday, 06/11 00:00 12.7 91 7 4 2B NW 2.1 0 1009 2791 Cloudy 51% cloud 03:00 15.5 58 10 5 2B W 1.3 0 1008 2778 Cloudy 52% cloud 06:00 13.7 66 13 7 3B W 0.61 0 1010 2708 Partly cloudy 47% cloud 09:00 9.3 82 11 6 2B W 0.22 0 1014 2463 Partly cloudy 38% cloud 12:00 7.2 93 8 4 2B NW 0.60 0 1017 1993 Overcast 84% cloud 15:00 5.8 95 10 5 2B NW 4.1 0 1018 1622 Overcast 99% cloud 18:00 4.7 95 8 4 2B NW 4.0 0 1019 1463 Overcast 96% cloud 21:00 4.5 90 8 5 2B W 1.3 0 1019 1533 Cloudy 75% cloud Saturday, 07/11 00:00 4.9 92 11 6 2B NW 2.6 0 1023 1393 Overcast 99% cloud 03:00 5.1 85 10 5 2B NW 4.2 0 1024 1343 Overcast 86% cloud 06:00 4.6 82 11 6 2B NW 3.1 0 1025 1299 Cloudy 74% cloud 09:00 3.1 89 8 5 2B NW 2.0 0 1028 1181 Cloudy 75% cloud 12:00 2.5 88 8 4 2B W 0.84 0 1030 1117 Cloudy 69% cloud 15:00 2.3 83 8 4 2B W 0.15 0 1031 1113 Cloudy 75% cloud 18:00 2.8 87 8 5 2B NW 0.35 0 1032 1116 Overcast 81% cloud 21:00 2.9 88 6 3 2B NW 0.36 0 1033 1112 Overcast 84% cloud Sunday, 08/11 00:00 5 76 7 4 2B NW 0.14 0 1034 1282 Overcast 80% cloud 03:00 7 60 11 6 2B N 0.05 0 1032 1387 Overcast 82% cloud 06:00 6.2 62 9 5 2B N 0.02 0 1031 1399 Cloudy 75% cloud 09:00 4.1 75 4 2 1B N 0 0 1032 1443 Overcast 83% cloud 12:00 4 75 2 1 1B W 0 0 1032 1568 Overcast 86% cloud 15:00 3.8 75 4 2 1B SW 0.05 0 1030 2065 Overcast 89% cloud 18:00 4 77 4 2 1B SW 0.02 0 1028 2111 Overcast 99% cloud 21:00 4.4 79 4 2 1B SW 0.17 0 1026 2219 Overcast 96% cloud Monday, 09/11 00:00 8.4 70 6 3 1B SW 0.07 0 1025 2316 Overcast 85% cloud 03:00 11.4 57 3 2 1B W 0 0 1021 2311 Partly cloudy 39% cloud 06:00 10.8 65 5 3 1B NW 0.05 0 1020 2254 Cloudy 60% cloud 09:00 7.3 90 8 5 2B NW 0.57 0 1021 2166 Overcast 83% cloud 12:00 5.5 98 13 7 3B N 6.3 0 1024 1577 Overcast 99% cloud 15:00 4.1 96 9 5 2B NW 2.6 0 1024 1295 Overcast 97% cloud 18:00 3.1 94 9 5 2B NW 1.4 0 1025 1140 Overcast 89% cloud 21:00 2.6 93 8 4 2B NW 0.44 0 1026 1087 Overcast 89% cloud Tuesday, 10/11 00:00 3.8 84 9 5 2B NW 0.73 0 1027 1173 Cloudy 71% cloud 03:00 4.2 82 12 6 2B N 2.0 0 1026 1216 Overcast 88% cloud 06:00 3 86 10 5 2B N 2.1 0 1026 1091 Overcast 90% cloud 09:00 2.1 92 6 3 2B N 0.31 0 1028 1017 Overcast 90% cloud 12:00 1.6 90 3 2 1B N 0.03 0 1028 1006 Cloudy 77% cloud 15:00 1.1 89 2 1 1B W 0.04 0 1028 931 Cloudy 73% cloud 18:00 0.5 86 2 1 1B W 0 0 1028 830 Cloudy 74% cloud 21:00 0.3 86 2 1 1B W 0 0 1029 804 Cloudy 61% cloud Wednesday, 11/11 00:00 4.8 68 4 2 1B NW 0.08 0 1030 1242 Cloudy 57% cloud 03:00 7.3 55 8 4 2B N 0 0 1029 1407 Partly cloudy 28% cloud 06:00 7.2 55 9 5 2B N 0 0 1029 1503 Clear 11% cloud |
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Forecast table times: UTC.
Coordinates: 36.8870175°N, 138.1772355°E · Requested elevation: 728 m. Model terrain: 602 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.
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 10.7 75 14 8 3B SW — — 1010 3050 Partly cloudy 27% cloud 09:00 10.8 78 11 6 2B S 0.03 0 1009 3042 Overcast 95% cloud 12:00 10.6 77 20 11 4B SW 0.69 0 1007 3026 Overcast 89% cloud 15:00 10.4 79 22 12 4B SW 0.12 0 1006 3013 Overcast 84% cloud 18:00 8.9 92 21 11 4B W 1.9 0 1005 2998 Overcast 87% cloud 21:00 7.8 94 31 17 5B NW 5.2 0 1008 2863 Overcast 98% cloud Friday, 06/11 00:00 7.2 85 34 18 5B W 2.1 0 1009 2796 Partly cloudy 46% cloud 03:00 8.2 70 34 18 5B W 1.0 0 1008 2778 Cloudy 52% cloud 06:00 7 75 41 22 6B W 0.59 0 1010 2697 Cloudy 51% cloud 09:00 5 77 38 21 5B W 0.28 0 1014 2453 Partly cloudy 43% cloud 12:00 2.7 88 29 15 4B W 0.69 0 1017 1985 Overcast 86% cloud 15:00 0.7 92 26 14 4B NW 4.5 1.8 1019 1612 Overcast 99% cloud 18:00 -0.2 91 32 17 5B W 4.3 1.7 1019 1459 Overcast 95% cloud 21:00 0.2 79 41 22 6B W 1.2 0.4 1019 1526 Cloudy 78% cloud Saturday, 07/11 00:00 -0.8 92 34 19 5B W 2.8 0.8 1023 1383 Overcast 99% cloud 03:00 -1.3 90 40 21 6B W 4.3 1.7 1024 1340 Overcast 85% cloud 06:00 -1.6 88 41 22 6B W 3.4 1.4 1025 1295 Cloudy 74% cloud 09:00 -2.2 91 35 19 5B W 2.2 0.7 1028 1178 Cloudy 76% cloud 12:00 -2.5 88 30 16 5B W 0.94 0.3 1030 1111 Cloudy 69% cloud 15:00 -2.3 86 29 16 5B W 0.17 0 1031 1110 Cloudy 75% cloud 18:00 -2.7 93 28 15 4B NW 0.40 0.1 1032 1112 Overcast 83% cloud 21:00 -2.9 96 22 12 4B NW 0.42 0.4 1033 1109 Overcast 85% cloud Sunday, 08/11 00:00 -1.9 89 17 9 3B NW 0.18 0 1034 1280 Overcast 81% cloud 03:00 -1.1 83 15 8 3B NW 0.04 0 1033 1391 Overcast 81% cloud 06:00 -0.9 82 11 6 2B N 0.03 0 1032 1399 Cloudy 76% cloud 09:00 -0.4 83 6 3 1B N 0 0 1032 1428 Overcast 86% cloud 12:00 0.4 77 4 2 1B SW 0 0 1032 1568 Overcast 86% cloud 15:00 2.3 68 16 9 3B SW 0.04 0 1030 2062 Overcast 91% cloud 18:00 2.8 66 15 8 3B SW 0.03 0 1028 2107 Overcast 99% cloud 21:00 4 61 19 10 3B SW 0.19 0 1026 2213 Overcast 97% cloud Monday, 09/11 00:00 5.3 59 23 12 4B SW 0.11 0 1025 2313 Overcast 83% cloud 03:00 5.6 62 20 11 4B SW 0 0 1021 2310 Partly cloudy 37% cloud 06:00 5 71 20 11 3B W 0.04 0 1020 2249 Cloudy 61% cloud 09:00 3.8 87 27 15 4B W 0.65 0 1021 2162 Overcast 84% cloud 12:00 0.4 96 30 16 5B NW 7.0 2.1 1024 1570 Overcast 99% cloud 15:00 -1.4 95 25 14 4B NW 2.9 0.9 1025 1298 Overcast 98% cloud 18:00 -2.6 95 25 14 4B NW 1.4 0.4 1025 1141 Overcast 90% cloud 21:00 -2.9 97 27 15 4B NW 0.52 0.5 1026 1088 Overcast 89% cloud Tuesday, 10/11 00:00 -2.7 93 25 14 4B NW 0.79 0.2 1027 1171 Cloudy 74% cloud 03:00 -2.4 94 24 13 4B NW 2.1 0.6 1026 1218 Overcast 89% cloud 06:00 -3.3 96 17 9 3B NW 2.2 1.7 1027 1092 Overcast 91% cloud 09:00 -3.5 90 13 7 3B NW 0.34 0.3 1028 1010 Overcast 92% cloud 12:00 -2.9 72 12 7 3B NW 0.05 0 1028 988 Overcast 81% cloud 15:00 -3.2 81 10 6 2B NW 0.06 0.1 1028 909 Cloudy 76% cloud 18:00 -3.2 88 12 6 2B NW 0 0 1028 796 Cloudy 75% cloud 21:00 -3 88 12 6 2B NW 0 0 1029 742 Cloudy 61% cloud Wednesday, 11/11 00:00 -2.3 88 11 6 2B NW 0.06 0 1030 1244 Cloudy 58% cloud 03:00 -0.8 72 12 7 2B NW 0 0 1029 1421 Partly cloudy 25% cloud 06:00 0.2 59 15 8 3B NW 0 0 1029 1515 Clear 9% cloud |
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Forecast table times: UTC.
Coordinates: 36.8930085°N, 138.1411703°E · Requested elevation: 1490 m. Model terrain: 650 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.