Islands Make Waves In the Clouds!

Islands not really moving but can make waves is something I never really thought about. But when I read that they sometimes make very dramatic waves n the clouds I was dumbfounded. Actually a satallite image has shown that the South Sandwitch island chain triggers V-shaped cloud that span out to the east and look like whit clouds against the ocean water. Nasa has explained that and island disturbs the smooth flow of air causing to go downwind. But your probably thinking, why is NASA explaining things about clouds? Well thats because rockets need to go throught the sky to get to space and this is something related to the sky. Well hears something a proffesional said. He said that the moist cloudy air over the ocean usually has a layer dry air witch is weird because it's right above a body of water. A huge body. When the wave ripples through the atmosphere downwind of the islands, clouds form at the crests of the waves becuase air cools as it rises. This then resulting in cloud droplets. I was actually wondering how the air becomes cloud droplets if it cools down its only suppose to become cloud droplets if water heats up and rises. Not cool down. Well the guy had also said that some of the warm air sinks into the the cool moist layer. This then therefore replaces the cloudy air. Also as the air sinks in the clouds warm up and evaporate thus causing the ripples or "waves" in the clouds.