Vertical Cross Section Supercell: 9th June 2004:06UTC

Isentropes
The isentropes show still the configuration for a warm front. However, the zone of potential instability at its warm side (54°N / 10,5°E) was shifted to about 700 hPa and weakened. That indicates that near the surface stabilisation already started.

The VCS was laid along the line indicated in the image below. From SW to NE.

Temperature Advection
The maximum warm air advection is observed in the lowest layers yielding an increasing potential instability.

Vertical Motion (Omega)
We still observe intense upward motion near the super cell at (54°N / 11°E) and the middle troposphere that is more triggered by positive vorticity advection in middle and upper levels.

Divergence
The maximum of convergence rised to higher levels, too. In high levels we see a strong divergence. However, near the surface we find only a weak convergence.

Summary
The NWP-parameters of 06 UTC reveal intense dynamical forcings. However, all patterns moved to higher levels yielding a reduced energy input from the surface. The potential instability diminished to a weak local maximum. We still find high values of the corresponding IR-image. The super cell exhibited its maximum around 07 UTC before weakening.