A funnel cloud is a rotating column of air (visible due to condensation) that does not reach the ground. If a funnel cloud reaches all the way to the ground, it is then classified as a tornado. When out on the road, funnel clouds should be treated as tornadoes, since they could touch down.

What color are the clouds when there is a tornado?

“Those are the kind of storms that may produce hail and tornadoes.” Green does indicate that the cloud is extremely tall, and since thunderclouds are the tallest clouds, green is a warning sign that large hail or a tornado may be present.

How do you identify a funnel cloud?

Therefore, a tornado can be a funnel cloud but not all funnel clouds are tornadoes. One trick to tell a funnel cloud from a SCUD cloud is if the cloud features on the edges are smoothed. Funnel clouds are smooth due to the rotation, while SCUD clouds are not smooth.