The lower part of the mesocyclone becomes tighter, increasing the wind speed

Then, the mesocyclone's lower part becomes tighter,increasing the speed of the wind.If, and that's a big if,this funnel of air moves down into that large, moist cloud base at the bottom of the parent storm,it sucks it in and turns it into a rotating wall of cloud,forming a link between
the storm that created it and the Earth.The second that tube of spinning cloud touches the ground,it becomes a tornado.Most are small and short-lived,producing winds of 65-110 miles per hour,but others can last for over an hour,producing 200 mile per hour winds.