MSG IR10.8 imagery with surface pressure and temperature at 850 hPa: time sequence

9th June 2004: 00UTC
This image shows the bright cloud complex mainly at the warm site of the warm front (temperature 850 hPa, blue) northeast of the surface trough (red). The blue lines exhibit a wave structure indicating that the super cell developed at a warm front wave.

9th June 2004: 06UTC
The frontal temperature contrast sharpened during the last 6 hours over North Germany and the surface pressure trough moved Northeast. The hight extending and bright clouds are just below the wave-formed temperature’s isolines.

9th June 2004: 12UTC
The area of relatively low surface pressure extended to Southeast and an own centre of low pressure developed southeast of Berlin. This surface pressure centre and the convective clouds are exactly connected to the wave structure of the temperature. In the rear of the warm front the temperatures rised due to solar irradiation yielding an increased temperature contrast and probably a reactivation of the convection (not discussed in the case study).