(Weather Analyst)
Wed Aug 19 2009 05:01 PM
Re: Bill a Category Four Hurricane, Likely No Threat to US

Hello Lois:
I think you were responding to Fairhopian and yes that is the idea. These large powerful storms do generate their own area of higher pressure aloft as the clockwise outflow diffuses the air away from the system and often they can literally shove smaller features aside or absorb them. They dominate thousands of square miles of space. But they still respond to the genearal laws of physics. What can change sometimes unseen is the atmosphere being in gaseous form can suddenly change hundreds of miles from where the storm actually is and alter the whole dynamic. That is why nothing is etched in stone, ever, with these systems.

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