 Waterspouts on the beach of Kijkduin near The Hague, the Netherlands on 2006 August 27. A waterspout is an intense columnar vortex (usually appearing as a funnel-shaped cloud) that occurs over a body of water and is connected to a cumuliform cloud. In the common form, it is a nonsupercell tornado over water, and brings the water upward. Also, it is weaker than most of its land counterparts.[1] Image File history File linksMetadata Download high-resolution version (994x750, 73 KB) Summary Waterspouts on the beach of Kijkduin near The Hague , the Netherlands on 2006 August 27. ...
Image File history File linksMetadata Download high-resolution version (994x750, 73 KB) Summary Waterspouts on the beach of Kijkduin near The Hague , the Netherlands on 2006 August 27. ...
Coordinates: , Country Netherlands Province South Holland Area (2006) - Municipality 98. ...
Image File history File links Trombe. ...
Image File history File links Trombe. ...
Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area Ranked 22nd - Total 65,795[1] sq mi (170,304[1] km²) - Width 361 miles (582 km) - Length 447 miles (721 km) - % water 17. ...
Vortex created by the passage of an aircraft wing, revealed by coloured smoke A vortex (pl. ...
A cumulus cloud (Cu) is a cloud belonging to a class characterized by puffs, mounds or towers, with flat bases and tops that often resemble cauliflower. ...
A tornado in central Oklahoma. ...
Formation Waterspouts exist on the microscale, meaning their environment is less than two kilometers in width. While some waterspouts are strong (tornadic) like their land-based counterparts, most are much weaker and caused by different atmospheric dynamics. They normally develop in moisture-laden environments with little vertical wind shear along lines of convergence, such as land breezes, lake effect bands, lines of frictional convergence from nearby landmasses, or surface troughs. Waterspouts normally develop as their parent clouds are in the process of development, and it is theorized that they spin up as they move up the surface boundary from the horizontal shear near the surface, and then stretch upwards to the cloud once the low level shear vortex aligns with a developing cumulus or thunderstorm. Weak tornadoes, known as landspouts, have been shown to develop in a similar manner.[2] An outbreak of over 66 waterspouts occurred in the Great Lakes in late September and early October 2003 along a lake effect band. Their parent cloud can be as innocuous as a moderate cumulus, or as significant as a supercell. It has been suggested that this article or section be merged with wind gradient. ...
A sea breeze or seabreeze is a thermally-forced mesoscale (i. ...
A landspout is a tornado not associated with the mesocyclone of a thunderstorm. ...
The Great Lakes from space The Great Lakes are a group of five large lakes in North America on or near the Canada-United States border. ...
Satellite view of a supercell A supercell is a severe thunderstorm with a deep rotating updraft (a mesocyclone) [1]. Supercell thunderstorms are the largest, most severe class of single-cell thunderstorms. ...
Types Waterspouts that are not associated with a rotating updraft of a supercell thunderstorm, are "nontornadic" or "fair-weather waterspouts,"[3] while those associated with mesocyclones are called "tornadic waterspouts". Tornadic waterspouts are generally more intense than nonsupercell waterspouts, and in reality are just tornadoes on water. Satellite view of a supercell A supercell is a severe thunderstorm with a deep rotating updraft (a mesocyclone) [1]. Supercell thunderstorms are the largest, most severe class of single-cell thunderstorms. ...
A shelf cloud associated with a heavy or severe thunderstorm over Enschede, The Netherlands. ...
It has been suggested that this article or section be merged into Supercell. ...
Waterspouts occur in coastal waters and are associated with usually weak, developing convective towers. They usually are F0, and generally exhibit winds of less than 30 m/s. These are arguably the most common waterspouts in sub-tropical climates, with upwards of 400 per year observed in the Florida Keys. They typically move slowly if at all, since the cloud they are attached to is being formed by convective action instead of the interaction between colliding fronts.[4] Fair-weather waterspouts are similar to landspouts.[4] Palm trees in Islamorada The Florida Keys is an archipelago of about 1700 islands in the southeast United States. ...
Convection in the most general terms refers to the internal movement of currents within fluids (i. ...
A guide to the symbols for weather fronts that may be found on a weather map: 1. ...
A landspout is a tornado not associated with the mesocyclone of a thunderstorm. ...
A waterspout off the Changi coast of Singapore
 A pair of waterspouts off the Bahamas Image File history File links No higher resolution available. ...
Image File history File links No higher resolution available. ...
Image File history File links Download high resolution version (1852x1172, 1710 KB) Waterspouts in the Bahamas Islands Image ID: wea00307, Historic NWS Collection Location: Bahamas Islands Photo Date: unknown Source: NOAA photo library http://www. ...
Image File history File links Download high resolution version (1852x1172, 1710 KB) Waterspouts in the Bahamas Islands Image ID: wea00307, Historic NWS Collection Location: Bahamas Islands Photo Date: unknown Source: NOAA photo library http://www. ...
Climatology Though the majority occur in the tropics, they can seasonally appear in temperate areas throughout the world, and are common across the western coast of Europe as well as the British Isles and several areas of the Mediterranean and Baltic Sea. They are not restricted to saltwater; many have been reported on lakes and rivers including all five Great Lakes.[3] They are more frequent within 100 kilometers (62 mi) from the coast than farther out at sea. Waterspouts are common along the southeast U.S. coast, especially off southern Florida and the Keys and can happen over seas, bays, and lakes worldwide. Approximately 160 waterspouts are currently reported per year across Europe, with the Netherlands reporting the most at 60, followed by Spain and Italy at 25, and the United Kingdom at 15. They are most common in late summer. In the Northern Hemisphere, a couple climatologies have both pinpointed September as the prime month of formation.[5] A noontime scene from the Philippines on a day when the sun is almost directly overhead. ...
The Great Lakes from space The Great Lakes are a group of five large lakes in North America on or near the Canada-United States border. ...
Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area Ranked 22nd - Total 65,795[1] sq mi (170,304[1] km²) - Width 361 miles (582 km) - Length 447 miles (721 km) - % water 17. ...
Palm trees in Islamorada The Florida Keys is an archipelago of about 1700 islands in the southeast United States. ...
This article does not cite any references or sources. ...
Nautical threat Waterspouts have long been recognized as serious marine hazards. Lucretius wrote about whirling columns that descended from the sky into the ocean and put sailors "into great peril"; history is filled with examples of ships being destroyed or damaged by them. Lucretius Titus Lucretius Carus (c. ...
Stronger waterspouts are usually quite dangerous, posing threats to ships, planes, and swimmers. It is recommended to keep a considerable distance from these phenomena, and to always be on alert through weather reports. The U.S. National Weather Service will often issue special marine warnings when waterspouts are likely or have been sighted over coastal waters, or tornado warnings when waterspouts can move onshore. The National Weather Service (NWS) is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the United States government. ...
A NOAA national weather forecast This article describes severe weather terminology used by the U.S. National Weather Service. ...
Tornado at beginning of life. ...
See also Image File history File links Commons-logo. ...
The Wikimedia Commons (also called Wikicommons) is a repository of free content images, sound and other multimedia files. ...
A winter waterspout seen over Lake Ontario from Whitby Ontario, January 26, 1994 A winter waterspout, also known as a snow devil or a snowspout, is an extremely rare meteorological phenomenon in which a vortex resembling that of a waterspout forms under the base of a snow squall. ...
A sequence of images showing the birth of a supercellular tornado. ...
A funnel cloud. ...
A landspout is a tornado not associated with the mesocyclone of a thunderstorm. ...
A tornado in central Oklahoma. ...
References The National Weather Service (NWS) is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the United States government. ...
Map of Key West Key West is a city located in Monroe County, Florida. ...
External links Waterspout or tornado debate. Should the term waterspout be dropped? http://www.ukweatherworld.co.uk/forum/forums/thread-view.asp?tid=6820&posts=1953&start=1 |
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