ATL: MARIA - Post-Tropical - Discussion

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ROCK
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Re: ATL: INVEST 95L - Models

#421 Postby ROCK » Tue Sep 06, 2011 1:18 pm

96hr going thru the central islands....smidge north this run

http://raleighwx.americanwx.com/models/ ... SLP096.gif


something to note is the BOC storm...if that guy launches east 95L will follow...IMO...
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Re: Re:

#422 Postby LarryWx » Tue Sep 06, 2011 1:20 pm

gatorcane wrote:
Aric Dunn wrote:again this run the ridging fills in behind katia and 95l/ TD racing westward about to cross through central antilies. heading appears ( but difficult to tell for sure ) to be about 275 to 285

http://raleighwx.americanwx.com/models/ ... _loop.html


Yeah looks like it is racing westward and staying generally weak again, so may stay west or west-northwest for a while...I am guessing the Euro is picking up on the shear out ahead of the system that it will encounter in the next 48-72 hours?

I have to go with the Euro right now considering how good of job it has done with these Cape Verde systems this season.

The UKMET is also very far west it looks like.


The UKMET has little credibility these days based on recent performance with both Irene and Katia and taking its left bias into account. However, the Euro, the king of relatively accurate models, is a whole diferent story.
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#423 Postby gatorcane » Tue Sep 06, 2011 1:20 pm

Check out the trough over the Eastern CONUS, looks like it is elongating and retrograding west on this 12Z Euro run? Strange

Ridging over the Western Atlantic seems to be pushing it westwards.
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Re: ATL: INVEST 95L - Models

#424 Postby HurricaneMaster_PR » Tue Sep 06, 2011 1:23 pm

ROCK wrote:96hr going thru the central islands....smidge north this run

http://raleighwx.americanwx.com/models/ ... SLP096.gif


something to note is the BOC storm...if that guy launches east 95L will follow...IMO...


King Euro insists in a southern track. Should be interesting to see the official track and how much deference the NHC gives to that model.
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Re: Re:

#425 Postby Aric Dunn » Tue Sep 06, 2011 1:24 pm

gatorcane wrote:
Aric Dunn wrote:again this run the ridging fills in behind katia and 95l/ TD racing westward about to cross through central antilies. heading appears ( but difficult to tell for sure ) to be about 275 to 285

http://raleighwx.americanwx.com/models/ ... _loop.html


Yeah looks like it is racing westward and staying generally weak again, so may stay west or west-northwest for a while...I am guessing the Euro is picking up on the shear out ahead of the system that it will encounter in the next 48-72 hours? If that is the case we have a new ball-game here.

I have to go with the Euro right now considering how good of job it has done with these Cape Verde systems this season.

The UKMET is also very far west it looks like.


what I think your missing is the GFS which is the most right also has a weak system the whole time for instance the euro at 72 hours has 1010 mb and the gfs has a 1008 ... hardly able to say that a stronger system would go more right. The Euro at least does not send a tropical system through a large 500mb ridge. :) The other models are under doing the initial ridging.

Also the cmc only has at best a 1005 mb Nogaps is similar..
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Re:

#426 Postby Aric Dunn » Tue Sep 06, 2011 1:25 pm

gatorcane wrote:Check out the trough over the Eastern CONUS, looks like it is elongating and retrograding west on this 12Z Euro run? Strange

Ridging over the Western Atlantic seems to be pushing it westwards.



well it has been mentioned in quite a few NWS forecast discussions that the trough/ cut off low is supposed to retrograde westward.
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Re: ATL: INVEST 95L - Models

#427 Postby ROCK » Tue Sep 06, 2011 1:26 pm

http://raleighwx.americanwx.com/models/ ... SLP120.gif


120hr under PR....weak....BOC friend destroying SLA...should punch a good hole into the ridge for 95 to follow...

though decent enough ridging under our BOC friend...maybe not...

http://raleighwx.americanwx.com/models/ ... SLP120.gif
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Re: ATL: INVEST 95L - Discussion

#428 Postby HurricaneMaster_PR » Tue Sep 06, 2011 1:26 pm

06/1745 UTC 11.3N 36.2W T2.0/2.0 95L
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#429 Postby gatorcane » Tue Sep 06, 2011 1:32 pm

Wow the 12Z Euro has much stronger ridging over the Bahamas and Bermuda at 144 hours.... :eek:

Even if this system strengthened should stay west or westnorthwest.
Last edited by gatorcane on Tue Sep 06, 2011 1:34 pm, edited 2 times in total.
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Re: ATL: INVEST 95L - Models

#430 Postby South Texas Storms » Tue Sep 06, 2011 1:33 pm

Maybe it gets into the GOM on this run?
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Re: ATL: INVEST 95L - Discussion

#431 Postby cycloneye » Tue Sep 06, 2011 1:34 pm

BEGIN
NHC_ATCF
invest_RENUMBER_al952011_al142011.ren
FSTDA
R
U
040
010
0000
201109061830
NONE
NOTIFY=ATRP
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#432 Postby Gustywind » Tue Sep 06, 2011 1:34 pm

Loop. 95L progresses westward...
Image
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Re: ATL: INVEST 95L - Models

#433 Postby ROCK » Tue Sep 06, 2011 1:36 pm

http://raleighwx.americanwx.com/models/ ... SLP144.gif

right under DR....oh man.... not another "whats land going to do to intensity storm"....ugh
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Re: ATL: INVEST 95L - Models

#434 Postby SFLcane » Tue Sep 06, 2011 1:36 pm

Hostile conditions are waiting if the ECM is correct.

edit...trof waiting to scoop it up. 168hrs.
Last edited by SFLcane on Tue Sep 06, 2011 1:38 pm, edited 1 time in total.
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#435 Postby Gustywind » Tue Sep 06, 2011 1:37 pm

Given NRL site we could have TD 14...
http://www.nrlmry.navy.mil/tc-bin/tc_ho ... p&TYPE=vis
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Re: ATL: INVEST 95L - invest_RENUMBER_al952011_al142011.ren

#436 Postby Hurricaneman » Tue Sep 06, 2011 1:37 pm

With this possibly being td14, do you think this is developing a little faster than modeled
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#437 Postby gatorcane » Tue Sep 06, 2011 1:38 pm

Ridge completely collapses at 168 hours and heading NNW into the Bahamas (Emily redux it looks like)
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Re: ATL: INVEST 95L - Models

#438 Postby ROCK » Tue Sep 06, 2011 1:38 pm

SFLcane wrote:Hostile conditions are waiting if the ECM is correct.


the run is not finished? might be hostile now but what at 216hr?.... :wink:
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Re: ATL: INVEST 95L - Models

#439 Postby SFLcane » Tue Sep 06, 2011 1:39 pm

trof trof trof and more trofs...ready for some cool air in the comings weeks perhaps.
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Re:

#440 Postby Aric Dunn » Tue Sep 06, 2011 1:39 pm

gatorcane wrote:Wow the 12Z Euro has much stronger ridging over the Bahamas and Bermuda at 144 hours.... :eek:

Even if this system strengthened should stay west or westnorthwest.


exactly even with the last runs of the euro there was slightly weaker ridging over the western atlanitc and still kept it on westerly track. vs the other models which have basically the same strength system yet turning it 295 starting now into a quite large ridge. the other models are to fast with the system and to slow with the ridging wedging in behind katia and the NE islands. so considering the present strength of the ridging matching with the euro initialization vs the other models that have a weakness farther east.. I am leaning towards the Euro ( which did very well with both irene and katia. )
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