A major threat for marine and coastal environment comes from oil spill accidents. Such
events have a great impact on both the ecosystem and on the economy, and the risk increases over
time due to increasing ship traffic in many sensitive areas. In recent years, numerical simulation
of oil spills has become an affordable tool for the analysis of the risk and for the preparation of
contingency plans. However, in coastal areas, the complexity of the bathymetry and of the orography
requires an adequate resolution of sea and wind flows. For this reason, we present, to the best of
the author’s knowledge, the first study on the subject adopting Large Eddy Simulations for both the
low-atmosphere and sea dynamics in order to provide highly-resolved marine surface current and
wind stress to the oil slick model, within a one-way coupling procedure. Such approach is applied to
the relevant case of Kotor Bay (UNESCO heritage since 1979), in Montenegro, which is a semi-closed
basin surrounded by mountains that is subject to an intense ship
