National Geographic : 1943 Dec
Aleko E.Lilius Six Waterspouts Seem to Hang from a Lowering Cloud over theSulu Sea This unusual scene was photographed near the Philippines. A waterspout is not a rotating column of sea water,but afunnel-shaped cloud created byarevolving column of moist, humid air. This motion causes a decrease in pressure. The whirling air expands and cools. Moisture initcondenses and becomes along, thin cloud. Waterspouts usually last only a few minutes. This probably encouraged the old belief that they could be destroyed bycannon fireorsome magic formula.