What does it mean to dream of multiple black tornados?

In dreams, tornadoes represent situations that are totally beyond your control. Something is going on in your life now, or you are anxious that something may soon happen, where you have absolutely no control over your circumstances and what is going on around you. There is also a sense of danger, and helplessness in the face of that danger. The color of the tornado does not have much significance, since tornadoes generally occur when there is heavy cloud cover, dark storm clouds, and they usually appear very dark or black.