29th May 2005: 00UTC
In this chapter the appearance of the clouds are related to the weatherevents. Different weatherevents depic different colours as can be derived from the table below. At this first image only the remnant of some CBs over Albania cause some rain in the region.
29th May 2005: 03UTC
Three hours later and the first cells emerge over Bulgaria. An isolated report of thunderstorms (TS) is seen in the image.
29th May 2005: 06UTC
Over the Balkan-area more convectivity starts as also more rain is observed. Further north over Estonia a larger convective cell appears and reports of TS accompany it.
29th May 2005: 09UTC
Over the Balkan-area more convectivity starts as also more rain and TS are observed.
29th May 2005: 12UTC
Over the Balkan-area and Italy more convectivity starts as also more rain and TS are observed. On the leading edge of the front several cells appear as well. They are accompanied by TS reports. The weatherevents within the frontal band are mostly rain and drizzle.
29th May 2005: 15UTC
Most striking is the increase in level of convectivity of Turkey, Greece the Balkan and Italy. Numerous reports of TS accompany them. Further north on the leading edge of the front several cells have appeared. They are accompanied by TS reports. The weatherevents within the frontal band are mostly rain and drizzle.
29th May 2005: 18UTC
Within the past 3 hours a decrease in convectivity took place and as a result also the reports of TS have seen a decline. Still over Bulgaria a large cell is seen. The weatherevents within the frontal band are mostly rain and drizzle.
29th May 2005: 21UTC
30th May 2005: 00UTC
Striking is the appearance of the MCS on the leading side of the frontal band. The convection is accompanied by numerous reports of TS and rain.
30th May 2005: 03UTC
30th May 2005: 06UTC
30th May 2005: 09UTC
The appearance of the MCS on the leading side of the frontal band diminished over the past hours, so did the number of reports of TS. The cells found over Turkey and Greece have died out over night. More development is expected as daytime convection starts in the following timesteps.
30th May 2005: 12UTC
On the leading side of the frontal system new cells have appeared. These cells will later develop into the large supercell systems covering Poland, Czech Republic and Austria. At this stage they are already accompanied by several reports of thunderstorms. Further to the east over Turkey daytime convection started and a number of thunderstorms are reported. Also because of the result of daytime convection the south of Italy shows some convective events.
30th May 2005: 15UTC
All the regions discussed previously have further developed. Most of Central and Southeastern Europe are endulged by convection. Numerous reports of thunderstorms and rain accompany them. On the leading side of the frontal system the cells developed into larger scale MCSs covering Poland, Czech Republic and Austria. They are accompanied by several reports of thunderstorms. Further to the east over Turkey daytime convection is peaking and a number of thunderstorms are reported. Also because of the result of daytime convection the south of Italy shows convective events and reports of TS.
30th May 2005: 18UTC
On the leading side of the frontal system the cells have merged and developed into a large scale MCSs which in this image is covering Poland, Czech Republic and Austria. They are accompanied by several reports of thunderstorms. Further to the east over Turkey daytime convection is on the down again and the number of thunderstorms reported have declined over the past 3 hours. Also because of the result of daytime convection the south of Italy shows convective events and reports of TS.
