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 2026-10-09 18:00:00 UTC · 6 days · Times: America/Los_Angeles.
Coordinates: 47.3903003°N, -121.3962113°E · Requested elevation: 800 m. Model terrain: 1114 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 | Friday, 09/10 11:00 8.9 91 18 10 3B W — — 1009 2360 Overcast 100% cloud 14:00 8.2 79 13 7 3B W 3.4 0 1010 2071 Cloudy 80% cloud 17:00 6.9 76 11 6 2B W 1.2 0 1010 1871 Overcast 93% cloud 20:00 5.2 86 9 5 2B W 0.51 0 1011 1578 Overcast 100% cloud 23:00 4.3 90 9 5 2B W 0.58 0 1011 1456 Overcast 95% cloud Saturday, 10/10 02:00 3.8 90 8 4 2B W 0.18 0 1011 1400 Overcast 94% cloud 05:00 3.8 90 7 4 2B W 0.16 0 1010 1400 Overcast 96% cloud 08:00 3.9 89 5 3 1B W 0.33 0 1011 1393 Overcast 93% cloud 11:00 5.7 79 6 3 2B NW 0.37 0 1011 1504 Overcast 92% cloud 14:00 7.2 71 8 4 2B NW 0.42 0 1011 1670 Cloudy 80% cloud 17:00 6.6 74 6 3 2B NW 0.66 0 1012 1715 Cloudy 65% cloud 20:00 3.8 88 1 0 0B N 1.00 0 1014 1627 Cloudy 67% cloud 23:00 1.5 90 3 2 1B E 0.13 0 1014 1145 Cloudy 56% cloud Sunday, 11/10 02:00 1 90 5 3 1B E 0 0 1015 1203 Overcast 87% cloud 05:00 0.9 89 4 2 1B E 0 0 1016 1217 Cloudy 73% cloud 08:00 1.4 90 5 3 1B E 0.00 0 1017 1176 Overcast 81% cloud 11:00 8.4 56 6 3 2B E 0 0 1016 1812 Clear 12% cloud 14:00 11.1 40 6 3 1B NE 0.03 0 1014 2010 Cloudy 76% cloud 17:00 10 47 3 2 1B N 0.02 0 1013 2036 Partly cloudy 46% cloud 20:00 5.4 75 1 1 1B E 0.03 0 1016 1944 Partly cloudy 40% cloud 23:00 2.4 78 2 1 1B E 0 0 1016 2096 Clear 0% cloud Monday, 12/10 02:00 1.5 75 2 1 1B E 0 0 1016 1140 Clear 7% cloud 05:00 1.4 74 2 1 1B E 0 0 1017 1147 Clear 9% cloud 08:00 2.5 73 2 1 1B E 0 0 1018 2348 Clear 10% cloud 11:00 10.4 45 4 2 1B W 0 0 1018 2500 Clear 2% cloud 14:00 12.5 41 8 4 2B W 0 0 1016 2832 Clear 0% cloud 17:00 10.5 52 8 4 2B NW 0 0 1017 3055 Clear 0% cloud 20:00 4.5 78 1 0 0B E 0 0 1018 3060 Clear 0% cloud 23:00 3.1 79 1 0 0B SE 0 0 1019 3069 Clear 0% cloud Tuesday, 13/10 02:00 2.8 70 1 0 0B N 0 0 1019 3075 Clear 7% cloud 05:00 3 59 0 0 0B E 0 0 1019 3078 Clear 0% cloud 08:00 4 54 1 0 0B E 0 0 1020 3088 Clear 7% cloud 11:00 12.2 32 3 2 1B W 0 0 1019 3098 Clear 14% cloud 14:00 14.9 34 7 4 2B W 0 0 1018 3102 Clear 18% cloud 17:00 13 49 6 3 2B NW 0 0 1019 3104 Clear 6% cloud 20:00 7.3 74 0 0 0B N 0 0 1021 3112 Clear 1% cloud 23:00 5.7 77 1 0 0B E 0 0 1021 3118 Partly cloudy 27% cloud Wednesday, 14/10 02:00 5.8 75 1 0 0B SE 0 0 1021 3122 Cloudy 68% cloud 05:00 5.6 72 0 0 0B S 0 0 1022 3124 Clear 14% cloud 08:00 6.4 73 1 0 0B W 0 0 1023 3133 Clear 6% cloud 11:00 13.7 52 7 4 2B W 0 0 1023 3143 Clear 8% cloud 14:00 15.3 50 9 5 2B W 0 0 1023 3145 Partly cloudy 46% cloud 17:00 13.3 60 8 4 2B NW 0 0 1024 3147 Clear 10% cloud 20:00 8.3 83 0 0 0B NW 0 0 1025 3154 Cloudy 62% cloud 23:00 6.7 83 1 1 1B E 0 0 1025 3162 Cloudy 67% cloud Thursday, 15/10 02:00 5.8 83 4 2 1B E 0 0 1024 3162 Cloudy 71% cloud 05:00 6.5 81 6 3 1B E 0 0 1023 3161 Overcast 95% cloud 08:00 7.7 79 9 5 2B E 0 0 1024 3166 Cloudy 79% cloud 11:00 15.4 48 10 6 2B E 0 0 1024 3172 Overcast 95% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Three Summits is a downhill ski area in Washington, United States. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 800 to 1183 metres above sea level. Cross-country skiing is also mapped within the area.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: America/Los_Angeles.
Coordinates: 47.3903003°N, -121.3962113°E · Requested elevation: 800 m. Model terrain: 1114 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 | Friday, 09/10 11:00 8.9 91 18 10 3B W — — 1009 2360 Overcast 100% cloud 14:00 8.2 79 13 7 3B W 3.4 0 1010 2071 Cloudy 80% cloud 17:00 6.9 76 11 6 2B W 1.2 0 1010 1871 Overcast 93% cloud 20:00 5.2 86 9 5 2B W 0.51 0 1011 1578 Overcast 100% cloud 23:00 4.3 90 9 5 2B W 0.58 0 1011 1456 Overcast 95% cloud Saturday, 10/10 02:00 3.8 90 8 4 2B W 0.18 0 1011 1400 Overcast 94% cloud 05:00 3.8 90 7 4 2B W 0.16 0 1010 1400 Overcast 96% cloud 08:00 3.9 89 5 3 1B W 0.33 0 1011 1393 Overcast 93% cloud 11:00 5.7 79 6 3 2B NW 0.37 0 1011 1504 Overcast 92% cloud 14:00 7.2 71 8 4 2B NW 0.42 0 1011 1670 Cloudy 80% cloud 17:00 6.6 74 6 3 2B NW 0.66 0 1012 1715 Cloudy 65% cloud 20:00 3.8 88 1 0 0B N 1.00 0 1014 1627 Cloudy 67% cloud 23:00 1.5 90 3 2 1B E 0.13 0 1014 1145 Cloudy 56% cloud Sunday, 11/10 02:00 1 90 5 3 1B E 0 0 1015 1203 Overcast 87% cloud 05:00 0.9 89 4 2 1B E 0 0 1016 1217 Cloudy 73% cloud 08:00 1.4 90 5 3 1B E 0.00 0 1017 1176 Overcast 81% cloud 11:00 8.4 56 6 3 2B E 0 0 1016 1812 Clear 12% cloud 14:00 11.1 40 6 3 1B NE 0.03 0 1014 2010 Cloudy 76% cloud 17:00 10 47 3 2 1B N 0.02 0 1013 2036 Partly cloudy 46% cloud 20:00 5.4 75 1 1 1B E 0.03 0 1016 1944 Partly cloudy 40% cloud 23:00 2.4 78 2 1 1B E 0 0 1016 2096 Clear 0% cloud Monday, 12/10 02:00 1.5 75 2 1 1B E 0 0 1016 1140 Clear 7% cloud 05:00 1.4 74 2 1 1B E 0 0 1017 1147 Clear 9% cloud 08:00 2.5 73 2 1 1B E 0 0 1018 2348 Clear 10% cloud 11:00 10.4 45 4 2 1B W 0 0 1018 2500 Clear 2% cloud 14:00 12.5 41 8 4 2B W 0 0 1016 2832 Clear 0% cloud 17:00 10.5 52 8 4 2B NW 0 0 1017 3055 Clear 0% cloud 20:00 4.5 78 1 0 0B E 0 0 1018 3060 Clear 0% cloud 23:00 3.1 79 1 0 0B SE 0 0 1019 3069 Clear 0% cloud Tuesday, 13/10 02:00 2.8 70 1 0 0B N 0 0 1019 3075 Clear 7% cloud 05:00 3 59 0 0 0B E 0 0 1019 3078 Clear 0% cloud 08:00 4 54 1 0 0B E 0 0 1020 3088 Clear 7% cloud 11:00 12.2 32 3 2 1B W 0 0 1019 3098 Clear 14% cloud 14:00 14.9 34 7 4 2B W 0 0 1018 3102 Clear 18% cloud 17:00 13 49 6 3 2B NW 0 0 1019 3104 Clear 6% cloud 20:00 7.3 74 0 0 0B N 0 0 1021 3112 Clear 1% cloud 23:00 5.7 77 1 0 0B E 0 0 1021 3118 Partly cloudy 27% cloud Wednesday, 14/10 02:00 5.8 75 1 0 0B SE 0 0 1021 3122 Cloudy 68% cloud 05:00 5.6 72 0 0 0B S 0 0 1022 3124 Clear 14% cloud 08:00 6.4 73 1 0 0B W 0 0 1023 3133 Clear 6% cloud 11:00 13.7 52 7 4 2B W 0 0 1023 3143 Clear 8% cloud 14:00 15.3 50 9 5 2B W 0 0 1023 3145 Partly cloudy 46% cloud 17:00 13.3 60 8 4 2B NW 0 0 1024 3147 Clear 10% cloud 20:00 8.3 83 0 0 0B NW 0 0 1025 3154 Cloudy 62% cloud 23:00 6.7 83 1 1 1B E 0 0 1025 3162 Cloudy 67% cloud Thursday, 15/10 02:00 5.8 83 4 2 1B E 0 0 1024 3162 Cloudy 71% cloud 05:00 6.5 81 6 3 1B E 0 0 1023 3161 Overcast 95% cloud 08:00 7.7 79 9 5 2B E 0 0 1024 3166 Cloudy 79% cloud 11:00 15.4 48 10 6 2B E 0 0 1024 3172 Overcast 95% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: America/Los_Angeles.
Coordinates: 47.401859°N, -121.42476°E · Requested elevation: 1183 m. Model terrain: 1105 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) 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 | Friday, 09/10 11:00 6.6 100 24 13 4B W — — 1009 2347 Overcast 100% cloud 14:00 5.5 89 16 9 3B W 3.8 0 1010 2055 Overcast 82% cloud 17:00 4.3 86 14 7 3B W 1.4 0 1010 1853 Overcast 95% cloud 20:00 2.8 94 11 6 2B NW 0.51 0 1011 1570 Overcast 100% cloud 23:00 2 97 11 6 2B W 0.55 0 1011 1453 Overcast 95% cloud Saturday, 10/10 02:00 1.6 98 11 6 2B W 0.20 0 1011 1398 Overcast 96% cloud 05:00 1.6 98 10 6 2B W 0.19 0 1010 1399 Overcast 97% cloud 08:00 1.6 98 7 4 2B W 0.33 0 1011 1391 Overcast 95% cloud 11:00 3.1 89 6 3 2B W 0.40 0 1011 1492 Overcast 93% cloud 14:00 4.4 81 8 4 2B NW 0.48 0 1011 1652 Overcast 82% cloud 17:00 4.1 83 7 4 2B NW 0.66 0 1012 1706 Cloudy 60% cloud 20:00 1.9 96 3 1 1B N 0.75 0 1014 1628 Cloudy 69% cloud 23:00 0.4 93 5 3 1B E 0.11 0 1014 1133 Cloudy 58% cloud Sunday, 11/10 02:00 -0 92 8 4 2B E 0 0 1014 1190 Overcast 88% cloud 05:00 -0.2 91 8 4 2B E 0 0 1016 1211 Cloudy 71% cloud 08:00 0.1 91 8 4 2B E 0.00 0 1017 1171 Overcast 81% cloud 11:00 5.9 61 8 4 2B E 0 0 1016 1814 Clear 10% cloud 14:00 8.5 45 6 3 2B NE 0.04 0 1013 2009 Cloudy 77% cloud 17:00 7.5 53 4 2 1B N 0.02 0 1013 2033 Partly cloudy 45% cloud 20:00 3.7 80 3 1 1B E 0.04 0 1016 1948 Partly cloudy 42% cloud 23:00 1.6 78 3 2 1B E 0 0 1016 2103 Clear 0% cloud Monday, 12/10 02:00 0.7 75 2 1 1B E 0 0 1016 1119 Clear 5% cloud 05:00 0.6 74 1 1 0B E 0 0 1017 1125 Clear 7% cloud 08:00 1.4 75 2 1 1B E 0 0 1018 2359 Clear 8% cloud 11:00 7.7 51 4 2 1B W 0 0 1018 2502 Clear 1% cloud 14:00 9.7 47 9 5 2B W 0 0 1016 2835 Clear 0% cloud 17:00 8 57 9 5 2B NW 0 0 1017 3055 Clear 0% cloud 20:00 3.3 74 1 1 1B N 0 0 1018 3061 Clear 0% cloud 23:00 2.1 74 2 1 1B N 0 0 1019 3070 Clear 0% cloud Tuesday, 13/10 02:00 1.9 64 3 2 1B NW 0 0 1019 3075 Clear 5% cloud 05:00 2.1 56 2 1 1B NW 0 0 1019 3078 Clear 0% cloud 08:00 3 52 2 1 1B N 0 0 1020 3088 Clear 8% cloud 11:00 9.6 35 3 2 1B NW 0 0 1019 3098 Clear 17% cloud 14:00 12.1 39 7 4 2B W 0 0 1019 3102 Clear 16% cloud 17:00 10.5 54 6 3 2B NW 0 0 1019 3104 Clear 7% cloud 20:00 6 76 2 1 1B N 0 0 1021 3112 Clear 1% cloud 23:00 4.8 78 1 0 0B N 0 0 1021 3118 Partly cloudy 27% cloud Wednesday, 14/10 02:00 5 76 0 0 0B — 0 0 1021 3122 Cloudy 65% cloud 05:00 4.8 75 2 1 1B W 0 0 1022 3124 Clear 15% cloud 08:00 5.3 76 3 2 1B W 0 0 1023 3133 Clear 6% cloud 11:00 11.1 59 8 4 2B W 0 0 1023 3143 Clear 9% cloud 14:00 12.5 56 9 5 2B W 0 0 1023 3145 Partly cloudy 47% cloud 17:00 10.8 67 8 4 2B NW 0 0 1024 3146 Clear 9% cloud 20:00 6.9 85 2 1 1B N 0 0 1025 3154 Cloudy 64% cloud 23:00 5.9 83 2 1 1B NE 0 0 1025 3162 Cloudy 66% cloud Thursday, 15/10 02:00 5.4 81 5 3 1B E 0 0 1024 3162 Cloudy 69% cloud 05:00 6 79 7 4 2B SE 0 0 1023 3161 Overcast 95% cloud 08:00 7 78 11 6 2B SE 0 0 1024 3166 Cloudy 79% cloud 11:00 13.5 51 13 7 3B SE 0 0 1024 3172 Overcast 95% cloud |
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