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This catastrophic case describes two Mediterranean low pressure systems, propagating along a so-called 5b path. Two major heavy precipitation events took place over Central Europe: The first event happened between 06 and 08 August and was caused by a Genoa Cyclone, the second between 10 and 13 August associated with a Back Bent Occlusion. Austria, Germany, the Czech Republic, Slovakia and Hungary are affected by catastrophic flash floods.

II. Flood Catastrophe 06 - 08 August 2002

Initial Weather Situation

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Development of Genoa Cyclone

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Floodphase

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III. Flood Catastrophe 10 - 13 August 2002

Initial Weather Situation: Intrusion of cold air into the western Mediterranean

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Development from Wave into Occlusion stages

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Floodphase

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"5b Path": Propagation of Mediterranean low northeastwards

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