ATL: GRACE - Models

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Re: ATL: GRACE - Models

#421 Postby IcyTundra » Sat Aug 14, 2021 1:31 pm

tolakram wrote:It appears what's happening is that if Fred ramps up in intensity then Fred's outflow will blast Grace with shear approaching the Bahamas. If Fred stays weak, then Grace is in a much better environment.


The GFS does show a stronger solution for Fred than the Euro and strengthens Grace more than the Euro. Not sure what to make of this setup.
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Re: ATL: GRACE - Models

#422 Postby Hypercane_Kyle » Sat Aug 14, 2021 1:36 pm

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Re: ATL: GRACE - Models

#423 Postby JPmia » Sat Aug 14, 2021 1:40 pm

Hypercane_Kyle wrote:Good news at least re: HWRF

https://twitter.com/pppapin/status/1426611259907129350


Let's hope that increases the accuracy of the HWRF because it's been so wrong lately.. I mean the Fred runs were an embarrassment.
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Re: ATL: GRACE - Models

#424 Postby AtlanticWind » Sat Aug 14, 2021 1:47 pm

Grace has a much larger envelope now , usually that bodes well for systems. At least thats what I've noticed
in the past.
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Re: ATL: GRACE - Models

#425 Postby hurricane2025 » Sat Aug 14, 2021 1:47 pm

All about the pattern!! Don’t look for strength yet
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Re: ATL: GRACE - Models

#426 Postby blp » Sat Aug 14, 2021 1:54 pm

IMHO, Euro performed quite bad with Fred on the track. The GFS was little better but not good either. The HWRF given its crazy intensity bias at least was showing the track south of Cuba when all the globals had it further Norrh. I thought HWRF was crazy going south of Cuba and was not that far off. My choice would be going with HWRF/Hmon for track and GFS/Euro on intensity. Never thought I would say that ever. It's a Bizzaro world out there now..

Given the large scale features are similar I don't discount a similar outcome with plenty of land interaction. It needs to get north of PR for it to have any chance.
Last edited by blp on Sat Aug 14, 2021 2:04 pm, edited 1 time in total.
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Re: ATL: GRACE - Models

#427 Postby gatorcane » Sat Aug 14, 2021 2:02 pm

Significant south shift with the 18Z:

Image
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Re: ATL: GRACE - Models

#428 Postby SFLcane » Sat Aug 14, 2021 2:03 pm

Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive
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Re: ATL: GRACE - Models

#429 Postby tolakram » Sat Aug 14, 2021 2:04 pm

TVCN is south enough that just a little more and one could see the LLC skipping south of Hispaniola. IMO anyway.
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Re: ATL: GRACE - Models

#430 Postby Hypercane_Kyle » Sat Aug 14, 2021 2:05 pm

SFLcane wrote:Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive


Let's avoid absolutes. It could and will shift more.

Interesting the UKMET took it far south enough to become a Caribbean cruiser.
Last edited by Hypercane_Kyle on Sat Aug 14, 2021 2:08 pm, edited 1 time in total.
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Re: ATL: GRACE - Models

#431 Postby blp » Sat Aug 14, 2021 2:05 pm

gatorcane wrote:Significant south shift with the 18Z:

https://i.postimg.cc/Qd78QBtC/07-L-tracks-18z.png


Yeah inline with HWRF and HMON. The Globals are out to lunch again.
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Re: ATL: GRACE - Models

#432 Postby Woofde » Sat Aug 14, 2021 2:11 pm

I'm not usually a fan of model shear forecasts because they are often extremely wrong, but the GFS does suggest that there would be a lot less shear if it took a route South of Hispaniola.Image
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Re: ATL: GRACE - Models

#433 Postby IcyTundra » Sat Aug 14, 2021 2:19 pm

SFLcane wrote:Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive


Considered the NHC didn't downgrade Fred until this morning I'd be very surprised if the NHC forcasts this to degenerate this early.
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Re: ATL: GRACE - Models

#434 Postby aspen » Sat Aug 14, 2021 2:44 pm

GEFS ensembles are really aggressive and show multiple hurricanes in the Bahamas heading to Florida. Most start out going south of the GAs, but suddenly turn north once they reach central DR.
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Re: ATL: GRACE - Models

#435 Postby SFLcane » Sat Aug 14, 2021 2:50 pm

Well see if the trends continue with the 18z guidance.
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Re: ATL: GRACE - Models

#436 Postby SoupBone » Sat Aug 14, 2021 3:00 pm

aspen wrote:GEFS ensembles are really aggressive and show multiple hurricanes in the Bahamas heading to Florida. Most start out going south of the GAs, but suddenly turn north once they reach central DR.


Another year/season, another round of flip-flopping windshield wipers. Going to be a stressful several days for us watching this.
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Re: ATL: GRACE - Models

#437 Postby captainbarbossa19 » Sat Aug 14, 2021 3:03 pm

Hypercane_Kyle wrote:
SFLcane wrote:Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive


Let's avoid absolutes. It could and will shift more.

Interesting the UKMET took it far south enough to become a Caribbean cruiser.


Yes. Many models are tracking this through the southern part of Hispaniola instead of through the middle like Fred. That is more in line like with Laura. I will not be surprised if this moves even more south though.
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Re: ATL: GRACE - Models

#438 Postby Cat5James » Sat Aug 14, 2021 3:10 pm

captainbarbossa19 wrote:
Hypercane_Kyle wrote:
SFLcane wrote:Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive


Let's avoid absolutes. It could and will shift more.

Interesting the UKMET took it far south enough to become a Caribbean cruiser.


Yes. Many models are tracking this through the southern part of Hispaniola instead of through the middle like Fred. That is more in line like with Laura. I will not be surprised if this moves even more south though.


Looks like its gaining latitude to me
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Re: ATL: GRACE - Models

#439 Postby sma10 » Sat Aug 14, 2021 3:13 pm

Many 12z EPS members take Grace north of Hispaniola. Some very strong members bending west thru Florida
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Re: ATL: GRACE - Models

#440 Postby Hypercane_Kyle » Sat Aug 14, 2021 3:14 pm

captainbarbossa19 wrote:
Hypercane_Kyle wrote:
SFLcane wrote:Guys, this is not going into the Bahamas it’s going on another self destruct mission. It seems Haiti has a magnet this season. 18z models are WAY South.

Nhc at 5 probably won’t even it keep alive


Let's avoid absolutes. It could and will shift more.

Interesting the UKMET took it far south enough to become a Caribbean cruiser.


Yes. Many models are tracking this through the southern part of Hispaniola instead of through the middle like Fred. That is more in line like with Laura. I will not be surprised if this moves even more south though.


Not inconceivable; Laura was at a higher latitude at this longitude and still managed to go south of Cuba.
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