ATL: Ex-Tropical Storm FIONA - Discussion

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Re: ATL: INVEST 97L - Discussion

#241 Postby cycloneye » Sat Aug 28, 2010 9:18 am

The latest. Structure looks good but still not a lot of convection.

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Re: ATL: INVEST 97L - Discussion

#242 Postby Vortex » Sat Aug 28, 2010 9:26 am

97 per latest visible is starting to come together...A very nice envelope developing with good outflow and some banding noted. Also, note the wsw movement as a whole the last few hours. This has been depicted by the CMC and Nogaps and appears underway. During the next few days I wouldn't expect much gain in latitude. This appears to be a bona fide threat to the northern antilles...Beyond that just too many variables..
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Re: ATL: INVEST 97L - Discussion

#243 Postby cycloneye » Sat Aug 28, 2010 9:29 am

Here is the SSD floater that looks more clearer than the NRL one.

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#244 Postby Vortex » Sat Aug 28, 2010 9:34 am

I expect this to be upgraded at 5pm to TD if the trends continue.
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#245 Postby KWT » Sat Aug 28, 2010 9:40 am

Yeah this one looks like it will develop, still needs a little more convection though for the NHC to get the ball rolling, esp when we have 2 systems already on the march.

Anyway this one is a real risk down the line but we've got such a long time to go and Earl needs much closer watching in the short term.
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Re: ATL: INVEST 97L - Discussion

#246 Postby Stephanie » Sat Aug 28, 2010 9:41 am

She has a nice outflow, even though the center isn't looking too solid yet.
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#247 Postby Vortex » Sat Aug 28, 2010 9:59 am

1415utc shows the center consolidating nicely with banding developing and excellent outflow developing...This one is a go...TD at 5 and if trends continue then I wouldnt be surprised to see Fiona at 11pm....really coming together hour by hour now...
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#248 Postby supercane » Sat Aug 28, 2010 10:18 am

ASCAT still does not show a well-defined closed low as shown by lack of west winds:
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Re: ATL: INVEST 97L - Discussion

#249 Postby Stephanie » Sat Aug 28, 2010 10:18 am

I find it interesting, in a concerned way, that each of these storms seem to be tracking further south and west of each other before making a turn, increasing the threat to the islands/East Coast.
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#250 Postby KWT » Sat Aug 28, 2010 10:20 am

Yeah no real closed low there at all, the NHC won't upgrade until that changes and it won't change until it actually manages to pop some better convection then it has right now...
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#251 Postby Vortex » Sat Aug 28, 2010 10:33 am

1445 convection beginning to fire over the center...TWO at 2pm Im going with 90-100%.
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Re:

#252 Postby gatorcane » Sat Aug 28, 2010 10:44 am

Vortex wrote:1445 convection beginning to fire over the center...TWO at 2pm Im going with 90-100%.


I can see that. Notice 97L is moving more WNW though the model consensus is south of that. Latest 12Z tropicals continue to start a recurve as it nears or just passes the NE Leewards to the north. ECMWF has had a west-bias all season so think it is already too far west. Watch it gradually shift more to the right away from the U.S.. This one is starting to smell fishy to me............
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Re: Re:

#253 Postby Scorpion » Sat Aug 28, 2010 10:53 am

gatorcane wrote:
Vortex wrote:1445 convection beginning to fire over the center...TWO at 2pm Im going with 90-100%.


I can see that. Notice 97L is moving more WNW though the model consensus is south of that. Latest 12Z tropicals continue to start a recurve as it nears or just passes the NE Leewards to the north. ECMWF has had a west-bias all season so think it is already too far west. Watch it gradually shift more to the right away from the U.S.. This one is starting to smell fishy to me............


Lol, your posts have become so predictable. Is there ever any storm that you don't have a fish bias for?
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#254 Postby Vortex » Sat Aug 28, 2010 10:59 am

gator,

I disagree. In fact if you look at the hi-res vis the last 6 hours its trending 270..The guidance im loking at is anything but fishy...
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Re: Re:

#255 Postby KWT » Sat Aug 28, 2010 11:00 am

gatorcane wrote:
Vortex wrote:1445 convection beginning to fire over the center...TWO at 2pm Im going with 90-100%.


I can see that. Notice 97L is moving more WNW though the model consensus is south of that. Latest 12Z tropicals continue to start a recurve as it nears or just passes the NE Leewards to the north. ECMWF has had a west-bias all season so think it is already too far west. Watch it gradually shift more to the right away from the U.S.. This one is starting to smell fishy to me............


Wow despite the ECM/CMC showing exactly the same solution...and the only models that recurve this one quickly are the models that try and pull a silly move like the GFS does and tries to interact Earl/Fiona...not going to happen with Earl just racing westwards, if anything the gaqp is building again though Earl will slow down as it starts to lift out.

I say this has a FAR greater risk then any of the previous systems...

Oh and BTW, the models don't recurve, they show a turn to the north but that is NOT a recurve, remember the models are building an upper high so a bend back west would very likely occur on quite a few of those models that do try and pull an early recurve...unless the GFS solution comes off...

Lets not forget I've been on the recurve bus for a while with both Danielle and to some extent Earl..I'm well off that bus with this one!
Far too far out with the pattern the models are suggesting, but I bet any money at all this doesn't recurve at 60W!
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Re: ATL: INVEST 97L - Discussion

#256 Postby MiamiHurricanes10 » Sat Aug 28, 2010 11:42 am

Pretty evident that this is on the verge of becoming a tropical depression. Organized deep convection continues to fire over the circulation and well-defined banding features particularly to the south of the circulation supports that this is organizing. Inflow coming into all four quadrants along with satellite imagery suggest that although the circulation is not extremely defined, however it is closed. I expect the TWO to increase the percentage with classification later today.
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Re: Re:

#257 Postby LowndesCoFire » Sat Aug 28, 2010 12:20 pm

Scorpion wrote:
gatorcane wrote:
Vortex wrote:1445 convection beginning to fire over the center...TWO at 2pm Im going with 90-100%.


I can see that. Notice 97L is moving more WNW though the model consensus is south of that. Latest 12Z tropicals continue to start a recurve as it nears or just passes the NE Leewards to the north. ECMWF has had a west-bias all season so think it is already too far west. Watch it gradually shift more to the right away from the U.S.. This one is starting to smell fishy to me............


Lol, your posts have become so predictable. Is there ever any storm that you don't have a fish bias for?


Agreed, but this is what makes this forum so good. Some people argue one way and some argue other ways even when simply rooted in personal opinion.
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Re: ATL: INVEST 97L - Discussion

#258 Postby KWT » Sat Aug 28, 2010 12:23 pm

MiamiHurricanes10 wrote:Pretty evident that this is on the verge of becoming a tropical depression. Organized deep convection continues to fire over the circulation and well-defined banding features particularly to the south of the circulation supports that this is organizing. Inflow coming into all four quadrants along with satellite imagery suggest that although the circulation is not extremely defined, however it is closed. I expect the TWO to increase the percentage with classification later today.


Its getting there though the earlier Ascat suggested this was quite some way from being closed...of course that could have changed and I agree its not far from being upgraded, but equally I can understand if they decide to hold back for just a little bit longer as well...

Personally though I'd still be tempted to upgrade it, still we will know soon enough.
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Re: ATL: INVEST 97L - Discussion

#259 Postby ROCK » Sat Aug 28, 2010 12:40 pm

http://cimss.ssec.wisc.edu/tropic/real- ... 8dlm1.html

for now its westward in the low level flow....
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Re: ATL: INVEST 97L - Discussion

#260 Postby Florida1118 » Sat Aug 28, 2010 12:47 pm

A BROAD LOW PRESSURE SYSTEM...ASSOCIATED WITH A VIGOROUS TROPICAL
WAVE...IS LOCATED ABOUT 350 MILES WEST-SOUTHWEST OF THE SOUTHERNMOST
CAPE VERDE ISLANDS. THIS SYSTEM CONTINUES TO SHOW SIGNS OF
ORGANIZATION...AND ENVIRONMENTAL CONDITIONS REMAIN FAVORABLE FOR A
TROPICAL DEPRESSION TO FORM LATER TONIGHT OR SUNDAY. THERE
IS A HIGH CHANCE...80 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WESTWARD TO WEST-
NORTHWESTWARD AT 15 TO 20 MPH.
---
still at 80...
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