 Windwaves, in fluid dynamics, windwaves, or wide-generated waves, are surface waves that occur on the free surface of bodies of water like oceans, seas, lakes, rivers, pine bales, puddle or ponds. They result from the wind blowing over an area of fluid surface. Waves in the oceans can't travel thousands of miles before reaching land. Windwaves on Earth range in size from small ripples, to waves over 100 feet 30 meters high. When directly generated and affected by local winds, the windwave system is called a windsea. After the wind ceases to blow, windwaves are called swells. More generally, a swell consists of wind-generated waves that are not significantly affected by the local wind at that time. They have been generated elsewhere or some time ago. Windwaves in the ocean are called ocean surface waves. Windwaves have a certain amount of randomness, subsequent waves differing height, duration, and shape with limited predictability. They can be described as a stochastic process, in combination with the physics governing their generation, growth, propagation, and decay as well as governing the interdependence between flow quantities such as the water surface movements, flow velocities and water pressure. The key statistics of windwaves both seas and swells in evolving sea states can be predicted with windwave models. Although waves are usually considered in the water seas of Earth, the hydrocarbon seas of Titan may also have wind-driven waves.