Conjure Tornado

You harness the chaotic forces of nature to summon a mighty tornado under your control. When you cast this spell, a massive storm appears, bringing down a swirling vortex of raging winds at a point you choose within range. If you cast this spell indoors, the tornado will touch down on top of the structure you are inside, and possibly tear through it if it's weak enough. The tornado created by this spell follows the mechanics outlined below:

Size: The tornado's size is determined by you, or can be rolled using the guidelines provided.

Width (if rolled): Roll 1d12, multiply result by 10.
Height (if rolled): Roll 1d100, multiply result by 3, and add 60.
Strength: The tornado is considered a class 3 magical tornado (If you are using the Tornado Hazard rules), large, slow-moving, and powerful, resembling anything from a thin, dancing rope to a giant wedge depending on it's size.
Tornado Duration: Roll 10d6. The result is how many minutes the Tornado is active for. You can dispel the tornado early, unless you lose control of it.

Movement: The conjured tornado moves at a speed of 20ft per round in a direction of your choice for as long as you maintain concentration on the spell.

Creature Interaction: Any creature within the tornado's area of effect must make a Strength saving throw against your spell save DC. On a failed save, the creature is pulled into the tornado. When a creature first gets pulled into the tornado, and at the beginning of each of it's subsequent turns, roll 1d6. The creature will be subjected to the following effects:

Random Damage (Roll 1d6):

1: 3d6 bludgeoning damage (Struck by Large Debris).
2: 5d6 slashing damage (Cut by Large Debris).
3: 2d6 piercing damage (Pierced by Shards of Glass/Rock Fragments).
4-6: Lifted into the air 1/4 of the tornado's height.

Object Interaction: The tornado can affect objects weighing up to 1 ton, pulling them up and into itself, and destroying them if they are nonmagical.

Tornado Control: While concentrating on the spell, you have complete control over the tornado's movement and direction. If you lose concentration on the spell, the tornado becomes controlled by the DM.