GFS Forecast: analysis time: 12Z 2017-10-16 :: valid time: 22Z 2017-10-20
Links to plots Below
- Pan-Arctic maps
- Beaufort and Chukchi seasonal ice zone
- Transects along 150 °W
- Flight conditions at different altitudes along 150°W
Sea ice contours: 15% (blue), 50% (black), 90% (red)
2-m temperature contour: -1.8 °C
U/V transect contour: 0 m/s
Update [15:30PM, Wed. Oct. 18, 2017 PST]: 58-hour forecast. Ice edge at 75 °N now. Northeasterly winds around 15 m/s. Cold and cloudy. Surface temperature around -2 °C or below. Might have some slush north of 73 °N.
Update [10:30AM, Tue. Oct. 17, 2017 PST]: 82-hour forecast.
Update [10:30AM, Mon. Oct. 16, 2017 PST]: 106-hour forecast. Sea ice edge at 76 °N. Cold and moist. Cloudy from 70 to 76 °N, with base below 500 m. A Low level wind northeasterly jet of up to 20 m/s centered at 75 °N at 700 m. At 3000 m, V-wind is around 5 m/s and may help with flight range. Near surface, relative humidity is above 90% with temperature below -2 °C.
Update [11:30AM, Mon. Oct. 9, 2017 PST]: 276-hour forecast. Sea ice edge at 77 °N. Cold, moist, and cloudy. Northwesterly winds from a weak long to the northwest. Cloud at 1.7 km from 72 to 74 °N and at 1 km at 76 °N.
- Pan-Arctic maps
 Sea ice concentration at analysis time |  Mean sea leve pressure at valid time |  700 hPa Geopotential Height |
 700 hPa temperature |  700 hPa relative humidity |  700 hPa wind speed |
 Pressure on 2PVU surface |  Low-level cloud cover |  Mid-level cloud cover |
- Beaufort and Chukchi seasonal ice zone (the map is centered at 150 °W)
 Sea ice concentration at analysis time |  Mean sea leve pressure at valid time |
 2-m air temperature |  2-m relative humidty |
 low cloud fraction |  middle cloud fraction |
- Transects along 150 °W
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