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A gustnado is a brief, shallow surface-based vortex which forms within the downburst emanating from a thunderstorm. [2] The name is a portmanteau by elision of " gust front tornado ", as gustnadoes form due to non-tornadic straight-line wind features in the downdraft ( outflow ), specifically within the gust front of strong thunderstorms.
The English word has been reborrowed into Spanish, referring to the same weather phenomenon. Tornadoes' opposite phenomena are the widespread, straight-line derechos ( / d ə ˈ r eɪ tʃ oʊ / , from Spanish : derecho Spanish pronunciation: [deˈɾetʃo] , 'straight').
An unusual weather phenomenon called a “gustnado,” which looks like a small tornado but is actually a type of whirlwind kicked up by thunderstorm winds, brought some dramatic moments to a ...
Tornado outbreak sequence of January 7–11, 2008; 2008 Super Tuesday tornado outbreak; List of United States tornadoes from March to April 2008. 2008 Atlanta tornado outbreak; List of United States tornadoes in May 2008. Tornado outbreak of May 1–3, 2008; Tornado outbreak sequence of May 7–11, 2008; Tornado outbreak of May 22–27, 2008
Outflow boundary on radar with radial velocity and frontal boundary drawn in.. An outflow boundary, also known as a gust front, is a storm-scale or mesoscale boundary separating thunderstorm-cooled air from the surrounding air; similar in effect to a cold front, with passage marked by a wind shift and usually a drop in temperature and a related pressure jump.
Landspout is a term created by atmospheric scientist Howard B. Bluestein in 1985 for a tornado not associated with a mesocyclone. [3] The Glossary of Meteorology defines a landspout:
A fire whirl, fire devil or fire tornado is a whirlwind induced by a fire and often (at least partially) composed of flame or ash.These start with a whirl of wind, often made visible by smoke, and may occur when intense rising heat and turbulent wind conditions combine to form whirling eddies of air.
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