Clark
(Meteorologist)
Wed Aug 15 2007 09:26 PM
Re: Dean And Erin

Quote:

Clark,

I certainly appreciate your knowledge and advise. The latest advisory points out what I was alluding to...the system's center is poorly defined and it keeps wanting to reform the main center of circulation. Now I know stronger storms (hurricanes) like to reform their eye sometimes but this is barley a tropical storm and it has been doing that which is why I said that I thought it was sick.

Shawn




Well, weak systems are also known to do that -- much more often than mature hurricanes, in fact. (I think you might be thinking of eyewall replacement cycles moreso than true center reformations.) These jumps/reformations can be brought about by a number of things, often associated with convection and mid-level circulation centers. These systems have a tendency to try to be as vertically coherent (upright) as possible and, if a new dominant mid-level center forms in response to a convective burst, the LLC will often to try to reform underneath it. It's generally a sign of a storm trying to intensify than one that is weakening.



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