ATL: Tropical Depression Fay

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KWT
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#841 Postby KWT » Tue Aug 12, 2008 5:04 am

Saying that wxman57 there does appear to be at least some sort of turning at the mid levels by looking at the loops in the last few hours, I agree no circulation at the surface but if convection can hold then eventually it'll work its way down...of course the problem has been getting it to hold.
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Re: ATL: Invest 92L - Central Atlantic

#842 Postby xironman » Tue Aug 12, 2008 5:07 am

west of the deepest of that convection but that big burst
Actually I have just south and east, almost where wxman has his crosshairs. Will sure be glad when there is a visible. I really wish http://ndbc.noaa.gov/station_page.php?station=41nt0 would update, it is at 14.5 N 50.5 W, and would give a clearer picture.
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Re: ATL: Invest 92L - Central Atlantic

#843 Postby physicx07 » Tue Aug 12, 2008 5:14 am

Can anyone tell me where to find a current map of Oceanic Heat Content, or Tropical Cyclone Potential for the area between 92L and Florida?
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Re: ATL: Invest 92L - Central Atlantic

#844 Postby HURAKAN » Tue Aug 12, 2008 5:14 am

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Re: ATL: Invest 92L - Central Atlantic

#845 Postby RL3AO » Tue Aug 12, 2008 5:16 am

physicx07 wrote:Can anyone tell me where to find a current map of Oceanic Heat Content, or Tropical Cyclone Potential for the area between 92L and Florida?


TCHP

http://www.aoml.noaa.gov/phod/dataphod1/work/HHP/NEW/2008223at.jpg
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#846 Postby HURAKAN » Tue Aug 12, 2008 5:18 am

Image

Image
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Re: ATL: Invest 92L - Central Atlantic

#847 Postby physicx07 » Tue Aug 12, 2008 5:19 am

Thanks. If it's going where I think it is, it might have a problem getting very strong. It would even probably sputter pretty bad just north of Hispaniola.

RL3AO wrote:
physicx07 wrote:Can anyone tell me where to find a current map of Oceanic Heat Content, or Tropical Cyclone Potential for the area between 92L and Florida?


TCHP

http://www.aoml.noaa.gov/phod/dataphod1/work/HHP/NEW/2008223at.jpg
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#848 Postby KWT » Tue Aug 12, 2008 5:22 am

Wouldn't read too much into that heat content chart, Bertha got to category-3 in that deep blue colour, much more important are going to be the upper winds obviously.
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#849 Postby HURAKAN » Tue Aug 12, 2008 5:29 am

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If there is any circulation, it's under the convection as none is visible south of it.
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Re: ATL: Invest 92L - Central Atlantic

#850 Postby Jam151 » Tue Aug 12, 2008 5:30 am

Are the RAMSDIS sat loops skipping for anyone else or is it something on my end?
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Re: ATL: Invest 92L - Central Atlantic

#851 Postby HURAKAN » Tue Aug 12, 2008 5:32 am

Jam151 wrote:Are the RAMSDIS sat loops skipping for anyone else or is it something on my end?


I have the same problem. They don't seem to update.
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#852 Postby HURAKAN » Tue Aug 12, 2008 5:33 am

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Re: ATL: Invest 92L - Central Atlantic

#853 Postby carolina_73 » Tue Aug 12, 2008 5:35 am

Think there is a good chance Recon will investigate later today?
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Re: ATL: Invest 92L - Central Atlantic

#854 Postby wxman57 » Tue Aug 12, 2008 5:35 am

10Z surface plot:

Image
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Re: ATL: Invest 92L - Central Atlantic

#855 Postby HURAKAN » Tue Aug 12, 2008 5:37 am

carolina_73 wrote:Think there is a good chance Recon will investigate later today?


It needs to reach 55W before 18Z, if so, and it continues to look intriguing, I think they would go just like 94L.
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Re: ATL: Invest 92L - Central Atlantic

#856 Postby Jam151 » Tue Aug 12, 2008 5:38 am

wxman57, is there a chance an LLC could be so small that it wouldn't be recognizable based on wind observations from buoys at such distances? Just curious.
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Re: ATL: Invest 92L - Central Atlantic

#857 Postby Ed Mahmoud » Tue Aug 12, 2008 5:39 am

Looking at the RAMSDIS loop from previous page, I see a broad elliptical circulation, with two areas at opposite ends of the ellipse with maximum turning. Maximum turning near 50ºW, or a shade East of the biggest convective blob.
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Re: ATL: Invest 92L - Central Atlantic

#858 Postby Extremeweatherguy » Tue Aug 12, 2008 5:39 am

xironman wrote:You are not alone, the RAMSDIS loop http://rammb.cira.colostate.edu/ramsdis/online/loop_640.asp?product=tropical_ge_4km_visir2_floater_1 even shows it better. The southern inflow looks much better and clearly curving around the area.
Yeah, the southern inflow is very evident on that loop.
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Re: ATL: Invest 92L - Central Atlantic

#859 Postby Nimbus » Tue Aug 12, 2008 5:52 am

If the low level organization is weak its likely any LLC will relocate or form further north under the convection again.

Looks like 92L is still feeling the effects of that ULL to the north that MW mentioned yesterday.
The ULL looks like it is beginning to slide NE and the dry air is not as close to the emerging center as it was. Could have a tenacious TD today, or it could go through another poof cycle and migrate a little further north.

I think once the models have an intensifying TD to initialize with they will show a much stronger system later in the forecast. We need to focus on the upper air forecast for now and as Derek always states, don't project some monster storm out of our dark psyche just because the track is towards the conus.
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#860 Postby HURAKAN » Tue Aug 12, 2008 5:52 am

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