A funnel cloud is a vortex (a narrow, rotating column of air) that is not touching the ground. A funnel cloud looks like a tornado, but only becomes a tornado when the bottom tip of the cloud touches the surface.
---D.M.
A funnel cloud is a vortex (a narrow, rotating column of air) that is not touching the ground. A funnel cloud looks like a tornado, but only becomes a tornado when the bottom tip of the cloud touches the surface.
---D.M.