Continuity mistake: At the beginning with Jo's team, the sky alters between cloudy and sunny in different shots.
Continuity mistake: When the steak gets placed on Melissa's plate the 1st time at Aunt Megs, it is well done and pointing in 1 direction. When Dusty slips it's a totally different steak pointing in the opposite direction.
Continuity mistake: When Bill and Jo are in the truck, Jo looks at the dashboard, which is shown, and then Jo looks away and covers her eyes. Bill then floors the gas, and the dashboard is shown, and this time, the airbag light is on, unlike the previous shot of the dashboard two seconds earlier.
Continuity mistake: During a scene in the middle they drive the red Dodge solo into the hills to face a twister. As they bail out they find that they can't free the "Dorothy" from the back of the truck, so they have to run for it. As they look back they watch power poles start blowing up. Finally the one next to the truck goes and falls across the bed of the truck, smashing Dorothy onto the roadway and spilling the sensors. As they come back to the truck, because the twister has disappeared, they realise the twister is "jumping" and pile into the truck for their escape. The power pole is no longer resting across the truck and there is no damage to the bed.
Plot hole: During the scene when Jo introduced the first Dorothy to Bill for the first time, you can see the blurry figure of Dusty and Dr Melissa holding hands in the background, which is super weird given she was annoyed by his presence at that point.
Other mistake: Near the end after Bill and Jo have jumped out of the truck, their crew sees the truck and Dorothy go up in the tornado, they are receiving telemetry, then one of them notices the tornado shift direction and the crew still tries to notify Bill and Jo by radio, knowing they're no longer in the truck nor have radio communications.kaevanoff
Visible crew/equipment: When Jo and Bill are driving through destroyed Wakita, Jo looks at a family hugging on the side of the road. As the camera pans along them, the shadow of a boom mike is visible, gliding along them.