The maximum of the wind is still at 300 hPa all the way through the cross section.
Vorticity Advection
Now one strong PVA maximum can be seen just behind the front at 400 hPa level. The field of the PVA shows good agreement of PVA maxima with cloud intensification.
Omega
The intensive upward motion can be seen at the position where the comma cloud feature starts to form over Hungary.
Potential Vorticity
The tropopause (PV=1) is approximately at 500 hPa behind the frontal cloud band. This often happens in the mature state of the process.
Temperature Advection
The cold advection can be seen through the whole area, the strongest at approximately 500 hPa behind the frontal zone.
