1.   As air pressure lowers in the spinning column, condensation occurs just below cloud base, revealing a funnel cloud.

2.   As pressure lowers in the spinning column, condensation occurs just below cloud base, revealing the funnel cloud.

3.   As pressure lowers in the spinning column, condensation occurs just below cloud base, revealing a funnel cloud.

4.   Sometimes the rising warm air grabs that spinning column and bends it around from horizontal to a more vertical direction.

5.   The high winds in a tornado are due to an extreme low pressure that forms at the center of the spinning column of air.