ATL: SAM - Models

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Re: ATL: INVEST 98L - Models

#321 Postby grapealcoholic » Tue Sep 21, 2021 4:34 pm

Found the scorecard comparing the new euro against the current one scored on z500 observations. Second image is scoring against analyses

New euro looks to be 1-2% better

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Re: ATL: INVEST 98L - Models

#322 Postby toad strangler » Tue Sep 21, 2021 4:53 pm

The Northern LA's and at least PR should be on their tippy toes. After that because of the DATE I'd side with climo and a re-curve as far W as the Bahamas to a sharper one that threatens Bermuda. THat's just a safe climo thought. Anything can happen and I'll never be the ding dong that says it can NOT.
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Re: ATL: INVEST 98L - Models

#323 Postby Blown Away » Tue Sep 21, 2021 5:00 pm

AutoPenalti wrote:
caneseddy wrote:


The good news is that this is 10 days out which can and will change...however if it does not that pattern screams SE Florida

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It doesn't. At the very end of the run most members sharply, and I mean SHARPLY curve it away from mainland US. If this run continued past 240 then I would bet on climo and say this is an uncomfortable OTS or Bermuda track for now.

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I have to disagree, there is a group that turns NNW @65W and a large group that ends on a WNW path @21N/70W. Even at 70W still plenty of room to recurve w/o impacting the CONUS, but it's definitely not consensus sharp N turn at end of run.
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Re: ATL: INVEST 98L - Models

#324 Postby grapealcoholic » Tue Sep 21, 2021 5:05 pm

GFS coming in further SW
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Re: ATL: INVEST 98L - Models

#325 Postby ScottNAtlanta » Tue Sep 21, 2021 5:05 pm

There could be a trough split that sends this further west. That's what it looks like to me. That would have a tongue of high pressure that extends out to the east over the storm
Last edited by ScottNAtlanta on Tue Sep 21, 2021 5:06 pm, edited 1 time in total.
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Re: ATL: INVEST 98L - Models

#326 Postby blp » Tue Sep 21, 2021 5:06 pm

18z GFS further SW through 84hrs.

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Re: ATL: INVEST 98L - Models

#327 Postby grapealcoholic » Tue Sep 21, 2021 5:07 pm

Can already tell this is going to be an interesting run
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Re: ATL: INVEST 98L - Models

#328 Postby toad strangler » Tue Sep 21, 2021 5:12 pm

grapealcoholic wrote:Can already tell this is going to be an interesting run



how?
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Re: ATL: INVEST 98L - Models

#329 Postby kevin » Tue Sep 21, 2021 5:13 pm

18z GFS already ~130 miles further SW at +114 hours compared to the 12z run.
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Re: ATL: INVEST 98L - Models

#330 Postby grapealcoholic » Tue Sep 21, 2021 5:13 pm

toad strangler wrote:
grapealcoholic wrote:Can already tell this is going to be an interesting run



how?

Ridging looks stronger
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Re: ATL: INVEST 98L - Models

#331 Postby Blown Away » Tue Sep 21, 2021 5:14 pm

kevin wrote:18z GFS already ~130 miles further SW at +114 hours compared to the 12z run.

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GFS continues trending SW...
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Re: ATL: INVEST 98L - Models

#332 Postby blp » Tue Sep 21, 2021 5:15 pm

grapealcoholic wrote:Can already tell this is going to be an interesting run


Yep, this one gives me a bad feeling. Real big shift here. Will probably have trouble clearing the islands.

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Re: ATL: INVEST 98L - Models

#333 Postby toad strangler » Tue Sep 21, 2021 5:16 pm

grapealcoholic wrote:
toad strangler wrote:
grapealcoholic wrote:Can already tell this is going to be an interesting run



how?

Ridging looks stronger



Run is a good jog SW but I'm not impressed with 500mb. We'll see
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Re: ATL: INVEST 98L - Models

#334 Postby grapealcoholic » Tue Sep 21, 2021 5:16 pm

Wonder if that trough over SE canada cuts off allowing ridging to fill in under

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Re: ATL: INVEST 98L - Models

#335 Postby Hypercane_Kyle » Tue Sep 21, 2021 5:19 pm

Very obvious trend in the GFS continues. Weaker, further west & more of a threat to land.

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Re: ATL: INVEST 98L - Models

#336 Postby kevin » Tue Sep 21, 2021 5:23 pm

GFS18z+156

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Re: ATL: INVEST 98L - Models

#337 Postby toad strangler » Tue Sep 21, 2021 5:29 pm

18z GFS is a good jog further SW than 12z but the 500mb map screams easy re-curve before affecting even the N Lesser Antilles. PArt of larger trend though? We shall see.
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Re: ATL: INVEST 98L - Models

#338 Postby skyline385 » Tue Sep 21, 2021 5:30 pm

The ridge is just beginning to build and its already so much SW, good chance of a CONUS hit this run probably
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Re: ATL: INVEST 98L - Models

#339 Postby aspen » Tue Sep 21, 2021 5:31 pm

That gets extremely close to the NW islands as a Cat 2/3 on September 29th.
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Re: ATL: INVEST 98L - Models

#340 Postby Teban54 » Tue Sep 21, 2021 5:31 pm

toad strangler wrote:18z GFS is a good jog further SW than 12z but the 500mb map screams easy re-curve before affecting even the N Lesser Antilles. PArt of larger trend though? We shall see.

skyline385 wrote:The ridge is just beginning to build and its already so much SW, good chance of a CONUS hit this run probably

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