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almost 10 years ago. 
It's simple storm dynamics and atmospheric dyanmics. The storm gets cut off from it's steering flow and sits and spins. These storms "ride the jetstream" and if they somehow miss their "ride", then it can be devastating because they are now drifting. And if that happens when they are near a large body of water, it can just enhance it more because they get a moisture feed. You don't need to be in an aircraft or an engineer to know this.
You are making it more complex than it is. Maybe you need to do some more study yourself because you are obviously not understanding it yourself.
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