9th July 2004: 12UTC
In this first image we see the frontal system that is cyclonically curved over eastern part of Europe. Western and Central Europe is marked by distinct cold air advection maxima.
The cold front part and also the occluded cloud band are marked by pronounced WA maxima. These maxima may slightly contribute to the upward motion and convection.
9th July 2004: 18UTC
Various WA maxima are found over Rumania and Ukraine that may slightly contribute to the convective development. Behind the frontal system massive cold air advection is found which is accompanied by showers over Germany and Poland.
10th July 2004: 00UTC
Behind the cold and warm front of the system we find the warm sector. A local maximum of WA is found over Ukrain. This WA can slightly contribute to the rising motions as several convective cells are seen. Further west a larger MCS is observed over parts of Rumania and Ukraine. It is superimposed by a tongue of cold air advection.
10th July 2004: 06UTC
Over the Carpathian Mountains a WA maximum is found which can contribute to the rising motions and the onset of convective development. Further east three seperate convective systems under WA are seen over Ukraine.
10th July 2004: 12UTC
10th July 2004: 18UTC
Severe convection is seen over the Ukraine. The cold cloud tops are marked by WA maxima indicating the horizontal redistribution of heat.
11th July 2004: 00UTC
A large convective system is seen over Ukraine. The cold cloud tops are marked by WA maxima indicating the horizontal redistribution of heat.
