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A whirlwind is a phenomenon in which a vortex of wind (a vertically oriented rotating column of air) forms due to instabilities and turbulence created by heating and flow (current) gradients. Whirlwinds can vary in size and last from a few minutes to a few hours.
Types, Formation & Duration
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whirlwinds minor winds storms funnel form wind major last thunderstorms types similar also lesser may formed powerful start ground seen
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Whirlwind | is a | phenomenon in which a vortex of wind | 0.90 | text |
| the mountainado | instance of | and shear eddies | 0.80 | text |
| eddy whirlwinds | instance of | and shear eddies | 0.80 | text |
| dust or snow as it moves over the ground | instance of | The funnel picks up materials | 0.80 | text |
| thus becoming visible | instance of | The funnel picks up materials | 0.80 | text |
| Whirlwind | related to Associated weather | Supercell | 0.60 | section |
| Whirlwind | related to Associated weather | Wind | 0.60 | section |
| Whirlwind | related to Associated weather | Also | 0.60 | section |
| Whirlwind | related to Associated weather | These | 0.60 | section |
| Whirlwind | related to Associated weather | Winds | 0.60 | section |
| Whirlwind | related to Associated weather | Like | 0.60 | section |
| Whirlwind | related to Duration | Major | 0.60 | section |
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