![]() By the time the funnel is visible, a fair weather waterspout is near maturity.įair weather waterspouts form in light wind conditions so they normally move little. Tornadic waterspouts develop downward in a thunderstorm while a fair weather waterspout begins to develop on the surface of the water and works its way upward. This type of waterspout is generally associated with the formative stage of showers and non-severe thunderstorms whereas tornadic waterspouts develop in mature severe thunderstorms. Fair weather waterspouts usually form along dark flat bases of a line of developing cumulus clouds. The term fair weather comes from the fact that this type of waterspout forms during fair and relatively calm weather, often during the early to mid morning and sometimes during the late afternoon. ![]() They are associated with severe thunderstorms, and are often accompanied by high winds and seas, large hail, and frequent dangerous lightning.įair Weather waterspouts are usually a less dangerous phenomena, but common over the coastal waters along the Florida West Coast from late Spring through early Fall, and generally much more common than the tornadic variety. They have the same characteristics as a land tornado. Tornadic waterspouts are simply tornadoes that form over water, or move from land to water. So what is the difference between the two? Waterspouts are generally broken into two categories:įair Weather Waterspouts and Tornadic Waterspouts.
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