Editing Tornado (section)

===Waterspout===
{{Main|Waterspout}}

[[File:Trombe.jpg|thumb|left|A waterspout near the [[Florida Keys]] in 1969.]]

A ''waterspout'' is defined by the [[National Weather Service]] as a tornado over water. However, researchers typically distinguish "fair weather" waterspouts from tornadic (i.e. associated with a mesocyclone) waterspouts. Fair weather waterspouts are less severe but far more common, and are similar to [[dust devil]]s and [[landspout]]s. They form at the bases of [[cumulus congestus]] clouds over tropical and subtropical waters. They have relatively weak winds, smooth [[laminar flow|laminar]] walls, and typically travel very slowly. They occur most commonly in the [[Florida Keys]] and in the northern [[Adriatic Sea]].<ref name="USA Today 1">{{cite news|url=https://www.usatoday.com/community/chat/0504tornb.htm|title=Tornado Chase 2000|access-date=2007-05-19|first=Dave|last=Zittel|date=2000-05-04|newspaper=USA Today|url-status=dead|archive-url=https://web.archive.org/web/20070104170204/http://www.usatoday.com/community/chat/0504tornb.htm|archive-date=2007-01-04}}</ref><ref name="USA Today 2">{{cite news|url=https://www.usatoday.com/weather/wspouts.htm|title=Waterspouts are tornadoes over water|date=2007-11-01|access-date=2007-05-19|first=Joseph|last=Golden|newspaper=USA Today|archive-date=2012-09-07|archive-url=https://web.archive.org/web/20120907131453/http://www.usatoday.com/weather/wspouts.htm|url-status=live}}</ref><ref>{{cite book|first1=Thomas P.|last1=Grazulis |first2=Dan|last2=Flores |title=The Tornado: Nature's Ultimate Windstorm|publisher=University of Oklahoma Press|location=Norman OK|year=2003|page=256|isbn=0-8061-3538-7}}</ref> In contrast, tornadic waterspouts are stronger tornadoes over water. They form over water similarly to mesocyclonic tornadoes, or are stronger tornadoes which cross over water. Since they form from [[severe thunderstorm]]s and can be far more intense, faster, and longer-lived than fair weather waterspouts, they are more dangerous.<ref>{{cite web|url=http://www.srh.noaa.gov/mfl/?n=waterspouts|title=About Waterspouts|access-date=2009-12-13|date=2007-01-04|publisher=National Oceanic and Atmospheric Administration|archive-date=2009-09-13|archive-url=https://web.archive.org/web/20090913020610/http://www.srh.noaa.gov/mfl/?n=waterspouts|url-status=live}}</ref> In official tornado statistics, waterspouts are generally not counted unless they affect land, though some European weather agencies count waterspouts and tornadoes together.<ref name="SPC FAQ"/><ref name="ESWD definitions">{{cite web|url=http://essl.org/cgi-bin/eswd/eswd.cgi?action=showdefinitions&lang=en_0|title=European Severe Weather Database definitions|date=2012-01-02|access-date=2012-06-11|archive-date=2012-07-08|archive-url=https://web.archive.org/web/20120708073411/http://essl.org/cgi-bin/eswd/eswd.cgi?action=showdefinitions&lang=en_0|url-status=live}}</ref>