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 Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 06/11 00:00 9.2 93 8 4 2B W 0.14 0 1004 2977 Overcast 99% cloud 03:00 8.6 97 10 5 2B W 0.46 0 1002 2902 Overcast 100% cloud 06:00 9.1 97 14 8 3B W 2.5 0 1002 2704 Overcast 100% cloud 09:00 10.7 95 16 9 3B W 0.36 0 1004 2477 Overcast 93% cloud 12:00 12 72 26 14 4B W 0.55 0 1003 2280 Partly cloudy 44% cloud 15:00 9.9 89 31 17 5B W 1.3 0 1003 2353 Overcast 92% cloud 18:00 6.5 81 32 17 5B W 0.32 0 1008 1807 Overcast 95% cloud 21:00 3.4 88 35 19 5B W 1.1 0 1011 1174 Overcast 96% cloud Saturday, 07/11 00:00 1.3 80 33 18 5B W 0.77 0 1013 820 Overcast 88% cloud 03:00 0.3 78 26 14 4B W 0.18 0 1013 697 Overcast 84% cloud 06:00 0.2 85 23 12 4B W 1.4 0.4 1014 672 Overcast 100% cloud 09:00 0.8 76 27 15 4B W 1.2 0.4 1015 735 Cloudy 66% cloud 12:00 1.8 59 36 19 5B W 0.76 0 1014 828 Partly cloudy 49% cloud 15:00 0.7 69 31 17 5B W 0.75 0.2 1016 734 Cloudy 56% cloud 18:00 -0.2 77 30 16 5B W 0.82 0.2 1019 622 Overcast 92% cloud 21:00 -0 78 28 15 4B W 0.70 0.2 1020 646 Cloudy 69% cloud Sunday, 08/11 00:00 -0.2 77 28 15 4B W 0.47 0.1 1022 622 Cloudy 73% cloud 03:00 -0.6 74 26 14 4B W 0.45 0.1 1024 570 Overcast 85% cloud 06:00 -0.7 78 24 13 4B W 0.38 0.1 1027 544 Overcast 89% cloud 09:00 1.4 68 31 17 5B W 0.22 0 1027 814 Overcast 86% cloud 12:00 2.3 63 31 17 5B W 0.05 0 1027 886 Overcast 87% cloud 15:00 1.8 65 28 15 4B W 0.01 0 1029 814 Cloudy 79% cloud 18:00 0.4 72 18 10 3B W 0 0 1030 708 Cloudy 80% cloud 21:00 0.2 75 14 8 3B W 0 0 1030 690 Overcast 99% cloud Monday, 09/11 00:00 0 76 11 6 2B W 0.03 0 1030 654 Overcast 93% cloud 03:00 -1.1 87 11 6 2B W 0.16 0 1029 < 505 Overcast 92% cloud 06:00 -1.6 86 10 5 2B W 0.02 0 1028 < 505 Overcast 87% cloud 09:00 2.4 73 8 4 2B W 0 0 1027 981 Overcast 93% cloud 12:00 3.9 71 8 5 2B SW 0.01 0 1024 1110 Overcast 99% cloud 15:00 3.1 81 6 3 2B W 0.28 0 1022 1091 Overcast 100% cloud 18:00 1.8 98 7 4 2B W 1.3 0 1021 996 Overcast 99% cloud 21:00 1.5 95 11 6 2B W 0.61 0 1021 886 Overcast 89% cloud Tuesday, 10/11 00:00 0 89 19 10 3B W 0.08 0 1020 654 Overcast 88% cloud 03:00 -1.1 82 27 14 4B W 0.15 0 1019 < 505 Cloudy 79% cloud 06:00 -1.4 78 27 15 4B W 0.13 0 1020 < 505 Overcast 92% cloud 09:00 -0.7 70 26 14 4B W 0.33 0.1 1021 571 Overcast 90% cloud 12:00 -0.4 62 24 13 4B W 0.14 0 1022 609 Overcast 88% cloud 15:00 -0.8 60 16 9 3B NW 0.18 0 1024 571 Cloudy 73% cloud 18:00 -3.4 74 7 4 2B NW 0.01 0 1026 < 505 Clear 19% cloud 21:00 -5.2 79 6 3 2B NW 0 0 1028 < 505 Cloudy 64% cloud Wednesday, 11/11 00:00 -5 78 4 2 1B W 0 0 1028 < 505 Cloudy 65% cloud 03:00 -3.4 77 6 3 1B W 0 0 1028 < 505 Cloudy 63% cloud 06:00 -2.1 83 7 4 2B W 0.05 0 1028 < 505 Overcast 100% cloud 09:00 -0.5 81 6 3 2B W 0.57 0.2 1029 570 Overcast 99% cloud 12:00 0.8 81 10 5 2B W 0.66 0.2 1028 743 Overcast 100% cloud 15:00 1.4 82 12 6 2B W 0.47 0 1028 823 Overcast 85% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 39.813996°N, 140.9670299°E · Requested elevation: 646 m. Model terrain: 502 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.

Iwate Kogen Snow Park is a downhill ski area in Iwate Prefecture, Japan. Mapped terrain includes beginner, easy, intermediate, advanced routes. Its mapped lift network extends from approximately 646 to 1207 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 Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 06/11 00:00 9.2 93 8 4 2B W 0.14 0 1004 2977 Overcast 99% cloud 03:00 8.7 97 10 5 2B W 0.46 0 1002 2901 Overcast 100% cloud 06:00 9.1 97 14 8 3B W 2.6 0 1002 2703 Overcast 100% cloud 09:00 10.7 95 16 9 3B W 0.36 0 1004 2476 Overcast 93% cloud 12:00 12 72 26 14 4B W 0.56 0 1003 2280 Partly cloudy 44% cloud 15:00 9.9 89 30 16 5B W 1.3 0 1003 2351 Overcast 92% cloud 18:00 6.5 81 32 17 5B W 0.32 0 1008 1800 Overcast 95% cloud 21:00 3.4 88 35 19 5B W 1.1 0 1011 1172 Overcast 97% cloud Saturday, 07/11 00:00 1.2 80 33 18 5B W 0.77 0 1013 818 Overcast 88% cloud 03:00 0.3 78 26 14 4B W 0.18 0 1013 696 Overcast 84% cloud 06:00 0.2 85 23 12 4B W 1.4 0.4 1014 672 Overcast 100% cloud 09:00 0.8 76 27 15 4B W 1.3 0.4 1015 735 Cloudy 66% cloud 12:00 1.8 59 36 19 5B W 0.77 0 1014 828 Partly cloudy 49% cloud 15:00 0.7 69 31 17 5B W 0.76 0.2 1016 733 Cloudy 56% cloud 18:00 -0.2 77 30 16 5B W 0.83 0.2 1019 622 Overcast 92% cloud 21:00 -0 78 28 15 4B W 0.71 0.2 1020 646 Cloudy 69% cloud Sunday, 08/11 00:00 -0.2 77 28 15 4B W 0.48 0.1 1022 622 Cloudy 73% cloud 03:00 -0.6 74 26 14 4B W 0.46 0.1 1024 570 Overcast 85% cloud 06:00 -0.7 78 24 13 4B W 0.39 0.1 1027 544 Overcast 89% cloud 09:00 1.4 68 31 17 5B W 0.22 0 1027 813 Overcast 86% cloud 12:00 2.3 63 31 17 5B W 0.05 0 1027 885 Overcast 87% cloud 15:00 1.8 65 28 15 4B W 0.01 0 1029 814 Cloudy 80% cloud 18:00 0.4 72 18 10 3B W 0 0 1030 708 Cloudy 80% cloud 21:00 0.2 75 14 8 3B W 0 0 1030 690 Overcast 99% cloud Monday, 09/11 00:00 0 76 11 6 2B W 0.03 0 1030 654 Overcast 93% cloud 03:00 -1.1 87 11 6 2B W 0.16 0 1029 < 507 Overcast 92% cloud 06:00 -1.6 86 10 5 2B W 0.02 0 1028 < 507 Overcast 87% cloud 09:00 2.4 73 8 4 2B W 0 0 1027 980 Overcast 93% cloud 12:00 3.9 71 8 4 2B SW 0.01 0 1024 1110 Overcast 99% cloud 15:00 3.1 81 6 3 2B W 0.28 0 1022 1090 Overcast 100% cloud 18:00 1.8 98 7 4 2B W 1.3 0 1021 994 Overcast 99% cloud 21:00 1.5 95 10 6 2B W 0.61 0 1021 885 Overcast 89% cloud Tuesday, 10/11 00:00 0 89 19 10 3B W 0.09 0 1020 654 Overcast 88% cloud 03:00 -1.1 82 27 14 4B W 0.15 0 1019 < 507 Cloudy 79% cloud 06:00 -1.4 78 27 14 4B W 0.13 0 1020 < 507 Overcast 92% cloud 09:00 -0.7 70 26 14 4B W 0.34 0.1 1021 570 Overcast 90% cloud 12:00 -0.4 62 24 13 4B W 0.14 0 1022 609 Overcast 89% cloud 15:00 -0.8 61 16 9 3B NW 0.18 0 1024 570 Cloudy 73% cloud 18:00 -3.4 74 7 4 2B NW 0.01 0 1026 < 507 Clear 19% cloud 21:00 -5.2 79 6 3 2B NW 0 0 1028 < 507 Cloudy 64% cloud Wednesday, 11/11 00:00 -5 79 4 2 1B W 0 0 1028 < 507 Cloudy 66% cloud 03:00 -3.4 77 6 3 1B W 0 0 1028 < 507 Cloudy 63% cloud 06:00 -2.1 83 7 4 2B W 0.05 0 1028 < 507 Overcast 100% cloud 09:00 -0.5 81 6 3 2B W 0.57 0.2 1029 570 Overcast 99% cloud 12:00 0.8 81 10 5 2B W 0.67 0.2 1028 743 Overcast 100% cloud 15:00 1.4 82 12 6 2B W 0.48 0 1028 822 Overcast 85% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 39.8150962°N, 140.9648842°E · Requested elevation: 646 m. Model terrain: 505 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 Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 06/11 00:00 8.2 87 33 18 5B W 0.14 0 1004 2977 Overcast 99% cloud 03:00 7.6 98 38 21 5B W 0.43 0 1002 2899 Overcast 100% cloud 06:00 7.2 95 47 25 6B W 2.5 0 1002 2703 Overcast 100% cloud 09:00 6.4 94 47 25 6B W 0.38 0 1004 2473 Overcast 94% cloud 12:00 6.6 85 53 29 7B W 0.53 0 1003 2277 Partly cloudy 44% cloud 15:00 6.1 80 69 37 8B W 1.3 0 1003 2349 Overcast 92% cloud 18:00 2.6 84 70 38 8B W 0.33 0 1008 1790 Overcast 95% cloud 21:00 -0.3 82 74 40 8B W 1.1 0.3 1011 1164 Overcast 97% cloud Saturday, 07/11 00:00 -2.9 74 72 39 8B W 0.77 0.8 1013 813 Overcast 88% cloud 03:00 -3.5 82 67 36 8B W 0.19 0.2 1013 691 Overcast 85% cloud 06:00 -4.1 90 61 33 7B W 1.5 1.5 1014 673 Overcast 100% cloud 09:00 -4.4 82 70 38 8B W 1.3 1.3 1015 731 Cloudy 69% cloud 12:00 -3.9 71 77 42 9B W 0.79 0.8 1014 822 Cloudy 51% cloud 15:00 -4.2 76 79 43 9B W 0.83 0.8 1016 727 Cloudy 59% cloud 18:00 -4.4 85 72 39 8B W 0.93 0.9 1019 619 Overcast 93% cloud 21:00 -4.3 86 70 38 8B W 0.80 0.8 1020 640 Cloudy 72% cloud Sunday, 08/11 00:00 -4.5 84 67 36 8B W 0.52 0.5 1022 617 Cloudy 75% cloud 03:00 -4.8 83 64 35 8B W 0.53 0.5 1024 563 Overcast 87% cloud 06:00 -4.8 81 58 31 7B W 0.48 0.5 1027 535 Overcast 90% cloud 09:00 -3.4 72 63 34 8B W 0.24 0.2 1027 803 Overcast 87% cloud 12:00 -3.2 76 55 30 7B W 0.06 0.1 1027 881 Overcast 87% cloud 15:00 -3.5 77 51 28 7B W 0.01 0 1029 811 Overcast 81% cloud 18:00 -3.7 75 43 23 6B W 0 0 1030 704 Overcast 81% cloud 21:00 -3.7 77 38 20 5B W 0 0 1030 688 Overcast 99% cloud Monday, 09/11 00:00 -3.6 79 34 18 5B W 0.04 0 1030 650 Overcast 94% cloud 03:00 -4 85 32 17 5B W 0.17 0.2 1029 < 518 Overcast 92% cloud 06:00 -3.7 86 27 14 4B W 0.02 0 1028 < 518 Overcast 88% cloud 09:00 -1.7 85 21 12 4B W 0 0 1027 976 Overcast 93% cloud 12:00 -0.9 87 17 9 3B SW 0.01 0 1024 1105 Overcast 99% cloud 15:00 -0.9 93 17 9 3B SW 0.29 0.1 1022 1083 Overcast 100% cloud 18:00 -1.2 99 16 9 3B SW 1.3 0.4 1021 982 Overcast 99% cloud 21:00 -2.1 96 28 15 4B W 0.61 0.2 1021 878 Overcast 90% cloud Tuesday, 10/11 00:00 -3.9 73 46 25 6B W 0.09 0.1 1020 654 Overcast 88% cloud 03:00 -5 78 64 34 8B W 0.15 0.1 1019 < 518 Cloudy 79% cloud 06:00 -5.5 81 63 34 8B W 0.16 0.2 1020 < 518 Overcast 92% cloud 09:00 -6.1 80 56 30 7B W 0.42 0.4 1021 558 Overcast 90% cloud 12:00 -6.4 82 39 21 6B NW 0.18 0.2 1022 604 Overcast 89% cloud 15:00 -6.5 79 27 14 4B NW 0.16 0.2 1024 568 Cloudy 74% cloud 18:00 -7.1 76 21 12 4B NW 0.01 0 1026 < 518 Clear 19% cloud 21:00 -7.1 70 16 9 3B NW 0 0 1028 < 518 Cloudy 63% cloud Wednesday, 11/11 00:00 -6.9 81 14 8 3B W 0 0 1028 < 518 Cloudy 67% cloud 03:00 -5.9 85 19 10 3B W 0 0 1028 < 518 Cloudy 62% cloud 06:00 -5 91 23 13 4B W 0.04 0 1028 < 518 Overcast 100% cloud 09:00 -4.4 90 24 13 4B W 0.59 0.6 1029 572 Overcast 99% cloud 12:00 -3.8 91 28 15 4B W 0.76 0.8 1028 740 Overcast 100% cloud 15:00 -3.2 90 34 18 5B W 0.53 0.5 1028 816 Overcast 87% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 39.8315741°N, 140.9668341°E · Requested elevation: 1207 m. Model terrain: 516 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.