gustnado

thumb|right|410px|A gustnado near Swan Quarter, North Carolina, on April 26, 2019

A gustnado is a brief, shallow surface-based vortex which forms within the downburst emanating from a thunderstorm. 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. Gustnadoes tend to be noticed when the vortices loft sufficient debris or form condensation clouds to be visible, although it is the wind that makes the gustnado, similar to tornadoes. As these eddies very rarely connect from the surface to the cloud base, they are very rarely considered tornadoes. Gustnadoes differ from tornadoes structurally and dynamically in their vertical development, intensity, longevity, and formation; classic tornadoes are associated with mesocyclones within the inflow (updraft) of the storm rather than the outflow.