The marigrams provide sea level forecasts for points in the  Adriac  model that are closest to the tide gauges of the  Arpae Emilia-Romagna networks (Porto Garibaldi, Cervia, and Cattolica) and ISPRA.. Each marigram displays predictions from two days before (shown in red), the day before(shown in blue), and the current day (shown in green). For Porto Garibaldi, Cervia, and Cattolica, the marigram includes reference values used for coastal alert purposes at the regional level in Emilia-Romagna. These reference values are set at 0.7m (represented by the shaded area in yellow) and 0.8m (represented by the shaded area in red).