Systems and methods for ship motion forecasting are described herein. These ship motion forecasting systems can enable accurate real-time forecasting of waves and resultant vessel motions, and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with useful indications of ship motion forecasts by generating scrolling graphical representations of the ship motion forecasts. For example, the systems can be implemented to display on a first window portion a plurality of graphical representations of ship motion forecasts generated over a plurality of forecast cycles, where the graphical representations of new ship motion forecasts are added as generated, and where the graphical representations of previously generated ship motion forecasts are scrolled as new ship motion forecasts are added.