It is stated in a newspaper article (Slobodna Dalmacija, 24 August 1977) that the “sea level suddenly rose to a two-meter height, so that the whole Vela Luka wharf was flooded, and the sea entered many basements and thus caused many damage. The sea has “put ashore” several boats and a yacht… The flood also destroyed approximately 30 square meters of the operational coast.”

A closed mean sea level pressure low was present over the Alps and central Europe. As a consequence, weak to moderate sirroco wind (speeds up to 10-14 m/s) blew over the Adriatic Sea.  At  the 850 hPa height, a tongue of warm air mass was spreading from the central Sahara, across the central Mediterranean to the Adriatic Sea. As a result, a temperature front was present over the Adriatic Sea. At the 500 hPa level, a front side of a trough was located over the central Mediterranean and the Adriatic Sea. Associated winds reached speeds up to ~30 m/s over the Adriatic.