ABSTRACT. - Radar siganature of a cold front over west side of Romania. For synoptic conditions we used maps from electronic archives of MetOffice and Karlsruhe Weather Center, Germany. The most part of radar images used in the study are recorded in Timişoara in the first elevation of the radar (0.5 degr.) and they are taken over OmniWx Trac. For a better understanding of the phenomena, the images were also processed into PUP. A cold front that came up in the morning of July 30, 2007 developed radar structures as WER, MEZO and BOW ECHO. Rotational phenomena have determined the emergence of funnel shaped clouds. The severe convection ingredients which are associated to the synoptic structure have early revealed the emergence of some special phenomena.
Key words: radar, frontal instability, synoptic conditions, wind, Banat.
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