Waterspout/ˈwɔːtərspaʊt/ Definition 1 of 2Pro Tip 1/3Nature Phenomenon A waterspout is a natural weather event, important in meteorological studies. Scientists recorded the waterspout to study its behavior. Pro Tip 2/3Maritime Caution Sailors and people on vessels should take caution since waterspouts can be dangerous. The captain warned of the potential for waterspouts in the area. Pro Tip 3/3Not Always Visible Sometimes waterspouts form without the typical funnel, making them hard to spot. They missed the waterspout because it lacked a visible funnel.