Geopotential [gpdm] on 500 hPa (shading)

• Geopotential [gpdm] on 500 hPa (white), contours at 552 gpdm
• Sea level pressure [hPa] (black), contour interval = 5 hPa

Temperature [°C] on 850 hPa (shading)

• Temperature [°C] on 850 hPa (black dashes), contours at 0 °C
• Sea level pressure [hPa] (black), contour interval = 5 hPa
• Wind barbs [m/s] on 850 hPa (black)

Deformation [10⁻⁵/s] on 850 hPa (shading)

• Axes of dilatation on 850 hPa (black double-arrows)
• Frontal volumes on 850 hPa (dark cyan shading)
• Front lines on 850 hPa (red, blue, purple)
• Temperature [°C] on 850 hPa (dark red), contours at -5 °C

Surface sensible heat flux [W/m²] (shading)

• 10 m Wind barbs [m/s] (black)
• Sea surface temperature [°C] (grey), contour interval = 2 °C
• Sea ice concentration (light blue), contours at 0.2, 0.8
• 10 m wind speed [m/s] (yellow, orange, red), contours at 17.2, 24.5, 32.7 m/s

Surface latent heat flux [W/m²] (shading)

• 10 m Wind barbs [m/s] (black)
• Sea surface temperature [°C] (grey), contour interval = 2 °C
• Sea ice concentration (light blue), contours at 0.2, 0.8
• 10 m wind speed [m/s] (yellow, orange, red), contours at 17.2, 24.5, 32.7 m/s

Total column water vapour [kg/m²] (shading)

• Integrated column water vapour transport (black arrows)
• Large-scale precipitation [mm/h] (magenta), contours at 1, 3, 10 mm/h
• Convective precipitation [mm/h] (cyan), contours at 1, 3, 10 mm/h
• Temperature [°C] on 850 hPa (dark red), contours at -5 °C

Low cloud cover (shading)

• Mid-level cloud cover (orange shading)
• High cloud cover (white shading)

Potential temperature [K] on PV 2 (shading)

• Wind speed [m/s] on PV 2 (black), contours at 30, 45, 60, 75, 90 m/s
• Jet axes on PV 2 (white)

Wind speed [m/s] on PV 2 (shading)

• Anticyclonic Rossby wave breaking on PV 2 (red)
• Cyclonic Rossby wave breaking on PV 2 (orange)
• Anticyclonic Rossby wave breaking on 500 hPa (blue)
• Cyclonic Rossby wave breaking on 500 hPa (cyan)

Temperature anomaly [K] on 850 hPa, based on ERA-Interim 1979-2017 (shading)

• Temperature percentiles on 850 hPa, based on ERA-Interim 1979-2017 (black), contours at monthly recurrence
• Temperature percentiles on 850 hPa, based on ERA-Interim 1979-2017 (grey), contours at yearly recurrence
• Temperature percentiles on 850 hPa, based on ERA-Interim 1979-2017 (white), contours at new record

Total column water vapour anomaly [kg/m²], based on ERA-Interim 1979-2017 (shading)

• Total column water vapour percentiles, based on ERA-Interim 1979-2017 (black), contours at monthly recurrence
• Total column water vapour percentiles, based on ERA-Interim 1979-2017 (grey), contours at yearly recurrence
• Total column water vapour percentiles, based on ERA-Interim 1979-2017 (white), contours at new record