Tempest Tornado

A very large, loud, thunder filled tornado with a width of 15 feet is cast from your hands. Anything caught in it must succeed a DC20 dexterity saving throw or get sucked into the tornado. Upon entering the tornado, a creature will take 1d8 of force damage. Every 5 feet inside the tornado, a creature will rise 15 feet along with taking 5d4 of lightning damage. Every 15 feet, a creature can attempt to succeed a DC15 dexterity saving throw and if succeeded, escapes the tornado and moves 5 feet left or right and takes respective fall damage and other effects. It is impossible to escape if there is nowhere to move to. Anything that is not latched on the ground or lightly latched is affected.