1. A method for generating a route for a ship, the method comprising: identifying a start point and an end point for the ship; obtaining a number of forecasts of weather conditions for a period of time to travel from the start point to the end point; and generating a probability of reaching the end point from the start point for a number of routes from the start point to the end point for the ship within the period of time with a processor unit using the number of forecasts of weather conditions to form a number of probabilities.