cieldumort
(Moderator)
Sun Jul 20 2008 01:45 PM
Re: TS Dolly Heads Toward Cozumel, Cristobal Drifts NE, Bertha Now Extratropical

Quote:


Check this out: http://www.ssd.noaa.gov/goes/flt/t2/loop-wv.html

It looks like the center could be trying to relocate farther north. In the first advisory, the NHC had the center near 18.4, -82.2. In the loop, look around 20, -83.




I believe what you are picking up on is merely a lull in convective activity that has looped around some, as the ULL scoots off to the southwest, and as such, the fanning of those thunderstorms starts to come to an end, for now. The votice that is evident around 20N 83W is likely a decaying mid-level MCV that had been embedded in that previously mentioned, and now decaying, thunderstorm complex.

As a side note, using water vapor loops to determine where a surface circulation exists is not usually recommended. Water vapor images pick up on mid to upper level features, but almost always miss or mislead any activity that is at the surface.



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