They can form either as a tornadic waterspout, which develops from a supercell thunderstorm, or the more common fair-weather waterspout, which forms in calm conditions without severe storms.
fair weather waterspouts and tornadic waterspouts. “Tornadic waterspouts are simply tornadoes that form over water, or move from land to water. “They have the same characteristics as a land ...
This rare weather phenomenon, which only forms over bodies of water, can be caused when the wind blows in opposite directions and water vapour is pulled upwards towards the sky. Take a look at the ...