ATL: EMILY - Remnants

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Re: ATL: INVEST 91L - Discussion

#821 Postby MGC » Sat Jul 30, 2011 3:59 pm

This has the look to become a large powerful hurricane. There is little shear and the ULL to its north is only producing a outflow channel. The SST are plenty warm. I don't see anything stopping it. Looks to be heading just north of west. Looks like the folks in the islands might be in for a blow.....MGC
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Re: Re:

#822 Postby shaggy » Sat Jul 30, 2011 4:00 pm

cycloneye wrote:
srainhoutx wrote:
KWT wrote:Yeah its been going NW because its disconnected fully from the ITCZ, looks like thats pretty much done now...

Still a elongated low but no doubts its almost there and probably meets the critera for being upgraded...I sure hope the NHC aren't going to be behind the curve for yet another storm...


Rest assured. They are not... :wink:


They are all over it if you look at the recon thread and the missions that are already planned,including the gulfstream jet.


I think thats a message in itself cycloneye. They are clearly concerned about this storms potential track and have numerous flights planned tomorrow. I suspect they wait until the plane gets in there tomorrow for an upgrade unless the satellite imagery forces them to go with an upgrade earlier than tomorrows flights.
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#823 Postby nicole » Sat Jul 30, 2011 4:03 pm

So is this def expected to recurve??? Or is there still some chance of it going through the Carb into the GOM??
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#824 Postby ConvergenceZone » Sat Jul 30, 2011 4:03 pm

My question is, if the NOGAPS has such a horrible track record of accuracy, why does the NHC continue to use it? You would think they would either tweek the math that goes into its inaccurate predictions, or just get rid of it completely....
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Re: ATL: INVEST 91L - Discussion

#825 Postby WxEnthus » Sat Jul 30, 2011 4:04 pm

Hmm, no 5pm upgrade. Perhaps to a raise at 8pm and then a TD at 11pm? It may not be perfect yet but it's hard to believe they'd wait until tomorrow to at least go with a TD. Seems a tad late given there may be real concerns for impact to the islands.

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Re:

#826 Postby KWT » Sat Jul 30, 2011 4:06 pm

nicole wrote:So is this def expected to recurve??? Or is there still some chance of it going through the Carb into the GOM??


Not impossible for it to do that, however its probably a rank outsider in terms of chances of it happening.

WxEnthus, i actually see why the NHC are holding back, in these elongated systems sometimes its difficult for just one LLC to take over and become dominant, I'm sure they are ready and probably already briefing governments in the Caribbean about it.
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Re: ATL: INVEST 91L - Models

#827 Postby nicole » Sat Jul 30, 2011 4:08 pm

can someone please give me a link for the EURO? 8-)
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Re: Re:

#828 Postby wxman57 » Sat Jul 30, 2011 4:09 pm

Evil Jeremy wrote:
I hope not. If it continues organizing tonight at the rate it has been all day, this should be a TD at least by 11pm tonight, and if the NHC decides they want to wait until recon gets into the system, that gives less warning time for the Lesser Antilles.


That's right, if they wait for recon then it will be less than 24 hours from impacting the Caribbean on the first advisory and TS/H warnings will be issued too late. I remember one of the NHC forecasters saying (in a presentation at last year's National Hurricane Conf.) that they could issue watches/warnings for a developing disturbance BEFORE it was designated a TD. This is their chance. Why wait? It's 48 hours from hitting the islands now. Time for a TS watch at least.
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Re:

#829 Postby KWT » Sat Jul 30, 2011 4:09 pm

ConvergenceZone wrote:My question is, if the NOGAPS has such a horrible track record of accuracy, why does the NHC continue to use it? You would think they would either tweek the math that goes into its inaccurate predictions, or just get rid of it completely....


Because ultimatly it is still a dynamic model and whilst maybe not a good one it can help to add consensus. Something is better then nothing pretty much.
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Re: ATL: INVEST 91L - Models

#830 Postby SeminoleWind » Sat Jul 30, 2011 4:10 pm

nicole wrote:can someone please give me a link for the EURO? 8-)


here ya go...


http://www.ecmwf.int/products/forecasts ... 8120312!!/
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Re: ATL: INVEST 91L - Discussion

#831 Postby KWT » Sat Jul 30, 2011 4:11 pm

MGC wrote:This has the look to become a large powerful hurricane. There is little shear and the ULL to its north is only producing a outflow channel. The SST are plenty warm. I don't see anything stopping it. Looks to be heading just north of west. Looks like the folks in the islands might be in for a blow.....MGC


Yep, I'm thinking maybe a 60-70kts system into the Windwards, then probably 90-105kts into the NE Caribbean landmasses, not sure yet...before a recurve out to sea, maybe a close call with the Bahamas.

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Re: ATL: INVEST 91L - Discussion

#832 Postby cycloneye » Sat Jul 30, 2011 4:14 pm

From sunrise to sunset. Look at the change it has gone thru during the day.

Image
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Re: Re:

#833 Postby bamajammer4eva » Sat Jul 30, 2011 4:14 pm

wxman57 wrote:
Evil Jeremy wrote:
I hope not. If it continues organizing tonight at the rate it has been all day, this should be a TD at least by 11pm tonight, and if the NHC decides they want to wait until recon gets into the system, that gives less warning time for the Lesser Antilles.


That's right, if they wait for recon then it will be less than 24 hours from impacting the Caribbean on the first advisory and TS/H warnings will be issued too late. I remember one of the NHC forecasters saying (in a presentation at last year's National Hurricane Conf.) that they could issue watches/warnings for a developing disturbance BEFORE it was designated a TD. This is their chance. Why wait? It's 48 hours from hitting the islands now. Time for a TS watch at least.



That would be different-wonder where they would mention it since watches/warnings usually go in the advisory. TWO?

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Re: Re:

#834 Postby 'CaneFreak » Sat Jul 30, 2011 4:14 pm

I strongly agree wxman...

wxman57 wrote:
Evil Jeremy wrote:
I hope not. If it continues organizing tonight at the rate it has been all day, this should be a TD at least by 11pm tonight, and if the NHC decides they want to wait until recon gets into the system, that gives less warning time for the Lesser Antilles.


That's right, if they wait for recon then it will be less than 24 hours from impacting the Caribbean on the first advisory and TS/H warnings will be issued too late. I remember one of the NHC forecasters saying (in a presentation at last year's National Hurricane Conf.) that they could issue watches/warnings for a developing disturbance BEFORE it was designated a TD. This is their chance. Why wait? It's 48 hours from hitting the islands now. Time for a TS watch at least.
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Re: ATL: INVEST 91L - Models

#835 Postby shaggy » Sat Jul 30, 2011 4:14 pm

Sorry for this question but I am working nightshift this weekend and have just recently woken up.... I saw in several posts earlier that the nogaps(as bad of a model as it is) was in line with the euro showing a over the islands and into the southern florida area track? Yet on wunderground maps it has the nogaps north of the islands and ending up in the northern bahamas.....am I missing something?
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#836 Postby KWT » Sat Jul 30, 2011 4:16 pm

Looks close Cycloneye, I'd go with 90% myself, its close but not quite there, tohugh probably only needs one decent deep convective burst over the center.

Recon will probably find a 45-55kts system tomorrow I think...
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Re: Re:

#837 Postby Aric Dunn » Sat Jul 30, 2011 4:17 pm

wxman57 wrote:
Evil Jeremy wrote:
I hope not. If it continues organizing tonight at the rate it has been all day, this should be a TD at least by 11pm tonight, and if the NHC decides they want to wait until recon gets into the system, that gives less warning time for the Lesser Antilles.


That's right, if they wait for recon then it will be less than 24 hours from impacting the Caribbean on the first advisory and TS/H warnings will be issued too late. I remember one of the NHC forecasters saying (in a presentation at last year's National Hurricane Conf.) that they could issue watches/warnings for a developing disturbance BEFORE it was designated a TD. This is their chance. Why wait? It's 48 hours from hitting the islands now. Time for a TS watch at least.


Dont they have to contact all gov agencies first. maybe they cant get a hold of anyone.. lol
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Re: Re:

#838 Postby srainhoutx » Sat Jul 30, 2011 4:17 pm

wxman57 wrote:
Evil Jeremy wrote:
I hope not. If it continues organizing tonight at the rate it has been all day, this should be a TD at least by 11pm tonight, and if the NHC decides they want to wait until recon gets into the system, that gives less warning time for the Lesser Antilles.


That's right, if they wait for recon then it will be less than 24 hours from impacting the Caribbean on the first advisory and TS/H warnings will be issued too late. I remember one of the NHC forecasters saying (in a presentation at last year's National Hurricane Conf.) that they could issue watches/warnings for a developing disturbance BEFORE it was designated a TD. This is their chance. Why wait? It's 48 hours from hitting the islands now. Time for a TS watch at least.


As you know the NHC is part of the WMO Region IV. We are fortunate that this organization 'functions' better than other NATO organiztions and work well together. After all, it is up to each individual member State of Region IV to issue their watches/warnings.
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#839 Postby Gustywind » Sat Jul 30, 2011 4:21 pm

Yellow alert "Cyclone" has been requiered for Guadeloupe, Martinica and the Northern Leewards by Meteo-France.
French version: http://www.meteo.gp/donnees/bulletin/sp ... e_2007.php
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Re: ATL: INVEST 91L - Discussion

#840 Postby Gustywind » Sat Jul 30, 2011 4:23 pm

cycloneye wrote:From sunrise to sunset. Look at the change it has gone thru during the day.

Image

:eek: 91L continues to be fairly impressive, does not sound good for the islanders :roll: if this feature continues to improve its very nice structure...
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