Water level forecast for the Pomeranian Bay from the hiromb model

Water level 48-hour forecast data for the Pomeranian Bay, obtained from the operational model "HIROMB", have been compared with the coastal water level records. The gauges of Mrzeżyno, Dziwnów, Koserów and Sassnitz as well as 0-24 hours and 24-48 hours forecast for the appropriate grid nodes have been analysed. An overview of different statistical criteria has been done. The statistical analysis has shown a satisfactory agreement between the forecast and observed data. However, the problem of the common reference level for the all gauges remains still unsolved.