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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.
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 May 7–11, 2008; Tornado outbreak of May 22–27, 2008. 2008 Parkersburg–New Hartford tornado; Tornado outbreak sequence of June 3–11, 2008; August 2008 European tornado outbreak; 2008 Poland tornado outbreak; 2008 Tropical Storm Fay tornado outbreak; November 2008 Carolinas tornado outbreak; Tornadoes of 2009
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').
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.
During the late afternoon and evening of April 2, 2006, a series of tornadoes broke out in the central United States.It was the second major outbreak of 2006, in the same area that suffered considerable destruction in a previous outbreak on March 11 and 12, as well as an outbreak on November 15, 2005.
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:
First, the rain-free cloud base lowers as a rotating wall cloud. This lowering concentrates into a funnel cloud, which continues descending simultaneously as a circulation builds near the surface, kicking up dust and other debris. Finally, the visible funnel extends to the ground, and the tornado begins causing major damage.