Why is waiting for a visible funnel cloud to descend potentially dangerous?

Answer

The most intense period of inflow and potential rapid intensification has often already occurred within the storm's structure

By the time a funnel cloud is clearly visible extending to the ground, the critical phase of internal storm organization and inflow may have already peaked, delaying protective action.

Why is waiting for a visible funnel cloud to descend potentially dangerous?

#Videos

Everyone should know to look out for these clouds - YouTube

weatherskycloudtornado