September 12, 2019

  GFS Forecast: analysis time: 12Z 2019-09-09 :: valid time: 00Z 2019-09-13 ( Alaska LT: Tue. 2019-09-12 16:00PM)


Links to plots Below

Sea ice contours: 15% (blue), 50% (black), 90% (red)

2-m temperature contour: -1.8 °C

U/V transect contour: 0 m/s 


Update [14:30AM, Mon. Sep. 09, 2019 PST]:  

Sea ice edge at slightly north of 78 °N. The surface temperature over ice is slightly below 0 °C north of ice edge. High surface visibility south of 73 °N and below 1 mile north of 73.3 °N. Ceiling height is increasing from below 1000 ft near the coast to 3000 ft at 73.5 °N, corresponding to the deepening boundary layer. North of 74.5 the ceiling height is low, around 1000 ft. There is a surface high centered at 74.2 °N, 150 °W. With easterly wind along the coast and westerly wind to the north. 

 

 


    • Flight information

2019-09-12 16PM Alaska LT

2019-09-12 16PM Alaska LT


  • 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

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)

 middle cloud fraction

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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  • Flight conditions at different altitudes along 150 °W

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