FastSeas: Weather Routing

FastSeas is a weather routing and passage planning tool built for sailors. Give it a start and finish point, and FastSeas calculates the fastest and most comfortable route using live NOAA GFS and ECMWF weather forecasts, real ocean surface current data, your vessel's actual sailing performance, and your own comfort criteria — not just a straight line on a chart. WHAT FASTSEAS DOES • Weather Routing — enter a departure point, destination, and time, and get back a real calculated route: distance, passage time, and a full track overlaid on an interactive weather map. • Departure Planning — compare multiple candidate departure times side by side to find the best weather window for your passage. • Vessel Performance — teach FastSeas your boat's real polar performance (create one from a few basic inputs, import an existing polar file, or hand-edit the numbers yourself) so every calculation…